Is Adobe Installer safe?
Two low-trust engines flagged a common old Adobe installer signed by Adobe Inc. with no tier-1 detections.
The file shows only two low-trust detections against 75 engines total. It carries an unverified Adobe Inc. signature and matches two prior safe verdicts from the same signer. No sandbox malice, no malicious children, and widespread historical submissions support a clean classification.
24d2666c00ecd02350…c1cbba0a9156b3Recommended next actions
Before opening
Open it only when its sender or download source is one you independently trust.
If you already opened it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
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.
The file shows only two low-trust detections against 75 engines total. It carries an unverified Adobe Inc. signature and matches two prior safe verdicts from the same signer. No sandbox malice, no malicious children, and widespread historical submissions support a clean classification.
The engine results are limited to VirIT and Webroot with no tier-1 participation. The signer history is clean across the two known samples, and similar-hash RAG returns safe verdicts for the same Adobe Inc. signer. Sandbox execution produced no malicious verdict, and the ten dropped children are all unknown. The file is common_old with thousands of prior submissions, consistent with a legitimate installer rather than malware.
What We Detected
Two engines (VirIT, Webroot) reported malicious labels; all 17 tier-1 engines remained silent. The executable carries an Adobe Inc. signature whose verification status is null and carries an invalid-signature tag.
Threat Behavior
One sandbox recorded ambient and three offensive MITRE techniques, but returned no malicious verdict. Ten dropped children were inspected; none carried malicious verdicts. No domains were contacted and the host-reputation cross-check was not completed.
What To Do Now
Keep endpoint protection enabled. The file matches a known Adobe installer pattern and shows no tier-1 consensus or sandbox malice. If you obtained it from an official Adobe source, it can be considered safe for use.
Where this verdict could be wrong2 caveats
- communityComments contain mixed researcher verdicts (Suspicious, Clean, Malicious) with scores 8-48/100 — no consensus.
- signing.verified=null and invalid-signature tag present — certificate status unknown, not a trust signal.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Tier-1 engines silent (17/17)
- Signer history 2/2 safe
- Two prior safe verdicts for same signer
- Common_old prevalence (3697 sources)
- Unverified code signature
- Invalid-signature tag present
Retain current antivirus settings; the sample aligns with a legitimate, widely distributed Adobe installer.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete2 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial20 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete1 signature or behavior rule 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
- 33MITRE ATT&CK techniques
- 15spawned processes
- 20network contacts
- 40filesystem & mutex artifacts
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
Adobe Installer
24d2666c00ecd02350af0d70c8a9b71ed2bf0ce2553e61506fc1cbba0a9156b3
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
C:\Windows\system32\services.exe
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\executable.exe"
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
HDInstaller.log
C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\AdobeDownload\HDInstaller.log
04Isolated runtime analysis - Written fileObserved
DiscoverCacheData.dat
C:\Users\<USER>\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
172.64.149.82
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
23.216.147.64
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.
- 172.64.149.82
- 23.216.147.64
- a83f:8110:6e6b:2000:af3f:312f:2ba0:d201
- a83f:8110:50ae:58ae:98ae:a8ae:d8ae:e0ae
- 20.99.133.109
- a83f:8110:7f01:0:669f:660f:fb7f:0
- 104.18.38.174
- 20.99.184.37
- 23.216.147.76
- a83f:8110:7300:6b00:7600:6f00:6c00:7500
- C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\AdobeDownload\HDInstaller.log
- C:\Users\<USER>\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
- C:\Windows\System32\Tasks\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser
- C:\Users\user\AppData\Local\Temp\CreativeCloud\ACC\AdobeDownload\HDInstaller.log
- C:\Users\user\AppData\Local\Temp
- C:\ProgramData\Microsoft\Windows\WER\Temp\WEREF52.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WEREF32.tmp.WERInternalMetadata.xml
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF0BA.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF08A.tmp.csv
- C:\ProgramData\Microsoft\Windows\WER\Temp\WERF128.tmp.txt
- HDInstaller.log
- Global\C::Users:admin:AppData:Local:Microsoft:Windows:Explorer:thumbcache_idx.db!rwWriterMutex
- Global\C::Users:admin:AppData:Local:Microsoft:Windows:Explorer:thumbcache_32.db!dfMaintainer
- Global\C::Users:admin:AppData:Local:Microsoft:Windows:Explorer:thumbcache_96.db!dfMaintainer
- Global\C::Users:admin:AppData:Local:Microsoft:Windows:Explorer:thumbcache_256.db!dfMaintainer
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- b4e04dc8e3b7b421e2a5…e65120Never scannednever seen before
- 68095e77b9a1a8ae411a…55315fNever scannednever seen before
- 13c0e1644f4615865c6b…345981Never scannednever seen before
- f35238da1e9a739caf6d…928e9bNever scannednever seen before
- f4b5de0a23765cae7fee…1d57abNever scannednever seen before
- 0249a83672b95de1b3fa…f2005bNever scannednever seen before
- 48ad26c04004b39b78a7…626555Never scannednever seen before
- ee43489aee55e020a35b…a40ee2Never scannednever seen before
- c3853cd7700efbd06cb5…0526a4Never scannednever seen before
- c05656c8746ee6c3b162…6c9db2Never 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.
- 1rule hit recorded
- 2 / 75engines flagged
- 3,697sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
The hash has a long, established submission history across 3,697 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 02
2 of 75 antivirus engines flagged the file, including VirIT and Webroot.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 03
The hash has been submitted 70,364 times from 3,697 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: Adobe Installer — 24d2666c00ecd02350af0d70c8a9b71ed2bf0ce2553e61506fc1cbba0a9156b3
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — C:\Windows\system32\services.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Users\<USER>\Desktop\executable.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: HDInstaller.log — C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\AdobeDownload\HDInstaller.log
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: DiscoverCacheData.dat — C:\Users\<USER>\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 172.64.149.82 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 23.216.147.64 — 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
Behavioral heuristics matched patterns associated with malware. Corroborating evidence determines how much weight they carry.
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.
Evidence172.64.149.82 · 23.216.147.64 · a83f:8110:6e6b:2000:af3f:312f:2ba0:d201
2 of 75 engines flagged this file
View all 75 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
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Fingerprint and provenance
- File name
- Adobe Installer
- Format
- Win32 EXE
- Code signing
- Signature not verified: Adobe Inc.
- Size
- 7.3 MB
- Last analyzed
- Aug 18, 2026, 12:14 PM UTC
24d2666c00ecd02350af0d70c8a9b71ed2bf0ce2553e61506fc1cbba0a9156b3Safety & FAQ
Complete recovery guidance and answers for the next decision.
What to do now
This file appears low risk based on the evidence available now.
- Recovery step 01
Open it only when its sender or download source is one you independently trust.
- Recovery step 02
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
- Recovery step 03
Keep your antivirus and Windows updates switched on so you stay protected.
Safety FAQ
Direct answers grounded in the saved verdict and evidence in this report.
Is Adobe Installer safe?
What is Adobe Installer?
How many antivirus engines detected Adobe Installer?
Is Adobe Installer digitally signed?
What is the SHA-256 hash of Adobe Installer?
Is it safe to open Adobe Installer?
How up to date is this analysis of Adobe Installer?
Community
Member reviews and reports for this exact file hash.