Is SetupHybridMailPrinterDriver.exe safe?
No antivirus engine detected malware, but the unsigned, rarely submitted installer produced offensive technique mappings and unresolved direct-IP traffic that warrant caution.
All 77 antivirus engines were free of detections, including 18 tier-1 engines, and the completed sandbox did not issue a malicious verdict. However, the unsigned installer is uncommon, mapped to six offensive techniques, and contacted two IP addresses whose reputations were not fully checked, so it should only be used after verifying its source.
a0261f921168578d3c…c3267b9c33e03bRecommended next actions
Before running
Do not run it until the source and publisher can be verified independently.
If you already ran it
Stop using it, scan the device, and watch for unexpected behavior or security alerts. Get a fresh copy from the developer's official site or an official app store.
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
The reasoning behind this verdict
This section explains the evidence supporting the verdict and keeps conflicting or missing signals visible.
All 77 antivirus engines were free of detections, including 18 tier-1 engines, and the completed sandbox did not issue a malicious verdict. However, the unsigned installer is uncommon, mapped to six offensive techniques, and contacted two IP addresses whose reputations were not fully checked, so it should only be used after verifying its source.
The strongest reassuring evidence is that 0 of 77 engines flagged the file, with all 18 reporting tier-1 engines silent. One completed sandbox did not issue a malicious verdict, and no malicious dropped child or external-intelligence match was identified. Against that, the executable is unsigned, has only three recorded submitters, and runtime evidence mapped activity to T1055, T1562.001, and four other offensive techniques. It also contacted two IP addresses directly, but no complete host-reputation result is available. The extracted WiX installer artifacts may explain some installation and persistence-like activity, yet they do not resolve the more concerning technique mappings. These mixed signals support cautious handling rather than an unqualified trust decision.
What We Detected
None of 77 antivirus engines flagged the executable, including 18 tier-1 engines. The file is an unsigned Windows installer with only three recorded submitters, and no malware family was identified by the engines or external research feeds.
Threat Behavior
One completed sandbox run mapped six offensive techniques: T1055, T1134, T1543.003, T1547.001, T1560, and T1562.001. It did not produce a malicious sandbox verdict, and the observed WiX bootstrapper files and temporary installation paths can account for part of the activity. The sample also contacted 23.209.116.9 and 20.99.186.246 directly; because the host-reputation cross-check is unavailable, those contacts cannot be characterized as benign or malicious. Ten dropped files were inspected without an identified malicious child, but their individual verdicts remain unknown.
What To Do Now
Confirm that the file came from the expected mail-service or printer-driver provider and compare its SHA-256 hash with an official release record. If its origin cannot be verified, avoid running it on a production system; keep endpoint protection enabled and submit it to the vendor for confirmation.
Where this verdict could be wrong4 caveats
- The unsigned executable is rare, with prevalence.uniqueSources=3, so the absence of antivirus detections is not sufficient by itself to establish publisher legitimacy.
- The sandbox mapped six offensive techniques, including T1055 and T1562.001, which are meaningful counter-signals even though no malicious sandbox verdict was produced.
- Direct-IP contacts to 23.209.116.9 and 20.99.186.246 were observed, but contactedHosts=null means their reputation was not conclusively cross-checked.
- All 10 dropped children lack individual verdicts, so droppedChildren.hasMaliciousChild=false reflects no identified malicious child rather than ten confirmed-benign children.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- 0/77 antivirus engines reported malicious or suspicious results
- 18 tier-1 engines reported no detection
- behaviour.hasMaliciousSandboxVerdict=false
- droppedChildren.hasMaliciousChild=false
- externalIntel.yaraify.ruleCount=0 and externalIntel.malwareBazaar.hit=false
- Unsigned Windows executable despite code signing being applicable
- Only 3 submitters and 3 recorded submissions
- Sandbox mapping to T1055 process injection
- Sandbox mapping to T1562.001 defense impairment
- Direct-IP traffic to 23.209.116.9 and 20.99.186.246 without a completed reputation check
- Ten dropped children have unknown individual verdicts
Verify the SHA-256 hash and download source with the official software provider before installation. If verification is unavailable, do not run it on a production device and keep endpoint protection enabled.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 77 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial2 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete2 signature or behavior rules matched.
External intel
Complete3 of 3 independent reference sources completed.
Behavior
Plain-English impact first, then the observed runtime evidence.
Runtime flight recorder
Capture complete- 1isolated sandbox run
- 36MITRE ATT&CK techniques
- 15spawned processes
- 2network contacts
- 40filesystem & mutex artifacts
What this file does
Observed actions and their security significance
High concern: Injected code into another process, a technique that can conceal execution.
High concern: Used removable-media replication behaviour that can spread files between devices.
High concern: Created or modified a system service, which can keep code running.
High concern: Changed an auto-start location that can make code run after sign-in or restart.
High concern: Attempted to impair or bypass security controls.
High concern: Manipulated how the operating system loads code, which can redirect execution.
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
These are observed capabilities from an isolated analysis. A technique does not prove malicious intent on its own, and the file never ran on your device.
Attack story
Runtime observations grouped by analysis stage. Arrows organize the stages; they do not claim chronology or causality.
Input file
The submitted object
- FileObserved
SetupHybridMailPrinterDriver.exe
a0261f921168578d3c7acf95301edbc58d7c89a78ec0425cc8c3267b9c33e03b
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\SetupHybridMailPrint.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Windows\Temp\{D3A232AB-D70A-4B92-99A3-B16CE9E24811}\.cr\SetupHybridMailPrint.exe" -burn.clean.room="C:\Users\<USER>\AppData\Local\Temp\SetupHybridMailPrint.exe" -burn.filehandle.attached=644 -burn.filehandle.self=652
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
SetupHybridMailPrinterDriver.exe
C:\Windows\Temp\{1A81FD74-C2D7-4384-9B73-592BAD1C13B0}\.cr\SetupHybridMailPrinterDriver.exe
04Isolated runtime analysis - Written fileObserved
wixstdba.dll
C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\wixstdba.dll
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
23.209.116.9
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
20.99.186.246
Contact observed during runtime.
07Isolated runtime analysis - +1 more recorded observation in Analyst mode
7 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- 23.209.116.9
- 20.99.186.246
- C:\Windows\Temp\{1A81FD74-C2D7-4384-9B73-592BAD1C13B0}\.cr\SetupHybridMailPrinterDriver.exe
- C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\wixstdba.dll
- C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\thm.xml
- C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\thm.wxl
- C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\logo.png
- C:\Config.Msi
- C:\Config.Msi\MSI7995.tmp
- C:\MSI151a3.tmp
- C:\ProgramData\Package Cache\.unverified
- C:\Windows\Installer\MSI45B0.tmp
- NULL
- \Sessions\1\BaseNamedObjects\Global\SyncRootManager
- \Sessions\1\BaseNamedObjects\Local\ZonesCacheCounterMutex
- \Sessions\1\BaseNamedObjects\Local\ZonesLockedCacheCounterMutex
- \Sessions\1\BaseNamedObjects\Global\MSILOG_08c03c9c1daa5e8gol.47.5.4.46xegakcaPrevirD_000_00813041504202_revirD_retnirP_liaMdirbyH_pmeT_lacoL_ataDppA_egroeg_sresU_:C
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 0251ed1448b698b13848…cadf58Never scannednever seen before
- cd2e8ed1fbb308d9d166…19e01bNever scannednever seen before
- f13bae0ec08c91b4a315…4d6916Never scannednever seen before
- ab5badf277cf55d37ed5…ae7f16Never scannednever seen before
- 8dc6e8882bc3ba8e2b19…25d515Never scannednever seen before
- bd9f82eafc232054cd13…d65914Never scannednever seen before
- 2bea14d70943a42d344e…06cc80Never scannednever seen before
- accf0d8bfcef21f5f807…24322dNever scannednever seen before
- 6d1391036d3efe42f414…42824eNever scannednever seen before
- 5b4f08e60f8296a2be88…aca9f1Never scannednever seen before
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
Evidence integrity
Chain of custody for the facts preserved in this report.
- 2rule hits recorded
- 0 / 77engines flagged
- 3sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 02
0 of 77 antivirus engines flagged the file.
ProvenanceObservedSourceAntivirus analysisObserved at - 03
The hash has been submitted 3 times from 3 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: SetupHybridMailPrinterDriver.exe — a0261f921168578d3c7acf95301edbc58d7c89a78ec0425cc8c3267b9c33e03b
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\AppData\Local\Temp\SetupHybridMailPrint.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Windows\Temp\{D3A232AB-D70A-4B92-99A3-B16CE9E24811}\.cr\SetupHybridMailPrint.exe" -burn.clean.room="C:\Users\<USER>\AppData\Local\Temp\SetupHybridMailPrint.exe" -burn.filehandle.attached=644 -burn.filehandle.self=652
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: SetupHybridMailPrinterDriver.exe — C:\Windows\Temp\{1A81FD74-C2D7-4384-9B73-592BAD1C13B0}\.cr\SetupHybridMailPrinterDriver.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: wixstdba.dll — C:\Windows\Temp\{EA020197-B1DB-414D-8F21-48008DDBB90B}\.ba\wixstdba.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 23.209.116.9 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 20.99.186.246 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
MalwareBazaar, YARAify, and CIRCL hashlookup completed and returned no entries for this hash.
Signatures and behavior heuristics
A community signature or high-severity behavioral heuristic matched. Signatures identify known patterns; heuristics are strong leads but are not proof on their own.
The saved runtime evidence maps this activity to MITRE T1055 (Process Injection). The mapping supports possible process injection, but it does not prove the exact injection method or the operator's intent.
Evidence"C:\Users\<USER>\AppData\Local\Temp\SetupHybridMailPrint.exe"The sample contacted an external IP address directly and no application domain was recorded. Direct-IP traffic also occurs in legitimate installers and infrastructure, so this is supporting context only and requires corroboration from host reputation and other runtime evidence.
Evidence23.209.116.9 · 20.99.186.246
0 of 77 engines flagged this file
View all 77 engine results
Section entropy & packers
No high-entropy executable section or known packer signature was detected. Data and resource sections can still have high entropy without indicating packed code.
How widely this file has been seen
Rarely uploaded, but has been around for a while. Often niche legitimate software or old internal tooling; not a strong malware signal on its own.
Fingerprint and provenance
- File name
- SetupHybridMailPrinterDriver.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 42.6 MB
- Last analyzed
- Sep 17, 2026, 10:54 AM UTC
a0261f921168578d3c7acf95301edbc58d7c89a78ec0425cc8c3267b9c33e03bSafety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
We couldn't fully clear this file. Treat it with caution.
- Recovery step 01
Don't run it unless you're certain it came from a source you trust.
- Recovery step 02
Check where you got it — an unexpected attachment or a random download link is a red flag.
- Recovery step 03
If its origin cannot be confirmed, delete this file and use a fresh copy from a trusted source. Get a fresh copy from the developer's official site or an official app store.
- Recovery step 04
If you're still unsure, scan it again in a day or two — detections often catch up on newer files.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is SetupHybridMailPrinterDriver.exe safe, or is it malware?
What is SetupHybridMailPrinterDriver.exe?
How many antivirus engines detected SetupHybridMailPrinterDriver.exe?
What should I do if I already ran SetupHybridMailPrinterDriver.exe?
How do I remove SetupHybridMailPrinterDriver.exe?
What is the SHA-256 hash of SetupHybridMailPrinterDriver.exe?
How up to date is this analysis of SetupHybridMailPrinterDriver.exe?
Community
Member reviews and reports for this exact file hash.