Our call: Is AcroTray.exe safe?Safe
- 0 of 76 antivirus engines flagged the file.Observed · Antivirus analysis
- The file has a valid code signature from Adobe Systems.Observed · Code-signing metadata
- The hash has been submitted 54 times from 22 sources.Derived · Saved report facts
311c46b24603d425f7…a9b31b642cRecommended next actions
Before running
Run it only when it came from the developer's official site or another source you independently trust.
If you already ran it
Keep normal device protection enabled and stop if the file behaves unexpectedly.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 76 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial1 runtime contact was observed without a completed reputation cross-check.
YARA
Complete1 signature or behavior rule matched.
External intel
Complete3 of 3 independent reference sources completed.
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
AcroTray.exe
311c46b24603d425f7e2791d286e07e1de9562374b337d47778403a9b31b642c
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
C:\311c46b24603d425f7e2791d286e07e1de9562374b337d47778403a9b31b642c.exe
02Isolated runtime analysis
Files
Created or changed
- Written fileObserved
udhisapi.dll
C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
03Isolated runtime analysis - Written fileObserved
Microsoft-Windows-DiskDiagnosticDataCollector
C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
04Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
<MACHINE_DNS_SERVER>
Contact observed during runtime.
05Isolated runtime analysis
5 recorded facts from one runtime window. Every fact remains independently traceable in Analyst mode.
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 76 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The file has a valid code signature from Adobe Systems.
ProvenanceObservedSourceCode-signing metadataObserved at - 03
The hash has been submitted 54 times from 22 sources.
ProvenanceDerivedSourceSaved report factsObserved at - 04
Scanned file: AcroTray.exe — 311c46b24603d425f7e2791d286e07e1de9562374b337d47778403a9b31b642c
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — C:\311c46b24603d425f7e2791d286e07e1de9562374b337d47778403a9b31b642c.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
File written: udhisapi.dll — C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: Microsoft-Windows-DiskDiagnosticDataCollector — C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
Contacted host: <MACHINE_DNS_SERVER> — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Intelligence
The saved assessment, checked against the scan evidence and recorded coverage.
No saved analyst narrative
This report keeps the verified scan facts available below without inventing an analysis that was not saved with the scan.
Behavior
Plain-English impact first, then the observed runtime evidence.
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.
- <MACHINE_DNS_SERVER>
- C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
- C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector
Detection & Forensics
Consensus, attribution, signatures, code structure, prevalence, and identity.
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.
Evidence<MACHINE_DNS_SERVER>
0 of 76 engines flagged this file
View all 76 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
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- AcroTray.exe
- Format
- Win32 EXE
- Code signing
- Signature valid: Adobe Systems
- Size
- 1.8 MB
- Last analyzed
- Jun 13, 2026, 2:04 PM UTC
311c46b24603d425f7e2791d286e07e1de9562374b337d47778403a9b31b642cSafety & 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.
Run it only when it came from the developer's official site or another source you independently trust.
A clean result reduces known risk, but it cannot guarantee that every new or targeted threat has been detected.
Keep your antivirus and Windows updates switched on so you stay protected.