Is Adobe Installer safe?
Adobe-signed installer with zero engine detections and clean sandbox results.
All 75 engines returned clean. The file is signed by Adobe Inc. and matches prior safe samples from the same signer. Sandbox and child-file checks show no malicious activity.
431400157f37bcf467…62f885a811276cRecommended 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.
All 75 engines returned clean. The file is signed by Adobe Inc. and matches prior safe samples from the same signer. Sandbox and child-file checks show no malicious activity.
Zero detections across 75 engines, including 16 tier-1 engines, removes any malware signal. The verified Adobe signature and matching prior safe verdict on the same signer provide strong benign evidence. Sandbox execution produced no malicious verdict and dropped no malicious children. The single community annotation claiming trojan or ransomware activity lacks supporting engine or sandbox data and is outweighed by the clean technical signals.
What We Detected
75 of 75 engines reported the file clean. The executable carries a valid code-signing certificate issued to Adobe Inc. and matches a previously seen safe sample from the same publisher.
Threat Behavior
Sandbox analysis recorded typical installer activity plus some process-injection and LSASS-access mappings, but produced no malicious verdict and no malicious dropped children. Contacted hosts contain no entries already flagged malicious in our cache.
What To Do Now
The file can be executed under normal security settings. Keep Windows Defender and other endpoint protection enabled; no additional action is required.
Where this verdict could be wrong1 caveat
- communityComments[0] tags the file as 'trojan', 'ransomware', 'adware' — single researcher annotation with 0 votes, no corroboration from engines or sandbox verdicts.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Adobe Inc. trusted publisher match
- 0/75 engines malicious
- prior safe verdict on same signer
Treat as safe; retain existing endpoint protection and allow normal execution.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 75 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial1 of 6 contacted hosts were cross-checked; coverage is incomplete.
YARA
Complete3 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
- 31MITRE ATT&CK techniques
- 15spawned processes
- 6network 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
431400157f37bcf46734bbb21be3cc03e9fe206395f131d08162f885a811276c
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\Desktop\After_Effects_Set-Up_747d.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\Explorer.EXE
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
Connect
\Device\ConDrv\Connect
04Isolated runtime analysis - Written fileObserved
WAM.log
C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\WAM.log
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
150.171.28.11
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
8.8.8.8
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.
- 150.171.28.11
- 8.8.8.8
- 52.6.228.48
- 34.233.49.149
- 162.159.36.2
- https://cc-api-data.adobe.io
- \Device\ConDrv\Connect
- C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\WAM.log
- C:\Users\<USER>\AppData\Local\Temp\Adobe\com.adobe.dunamis\dunamis-2026-07-20_20-36-47.log
- C:\Users\<USER>\AppData\Roaming\com.adobe.dunamis\f65a88c9-12b3-4201-a633-87cf11b91fa8\v1\0
- C:\Users\<USER>\AppData\Roaming\com.adobe.dunamis\f65a88c9-12b3-4201-a633-87cf11b91fa8\v1\0\meta_events\manifest
- C:\Users\<USER>\AppData\Local\Packages\Microsoft.XboxGamingOverlay_8wekyb3d8bbwe\LocalCache\KnownGameList.bin
- C:\Users\<USER>\AppData\Local\Microsoft\GameDVR\KnownGameList.update
- C:\Users\<USER>\AppData\Local\Adobe\webview2\After_Effects_Set-Up_747d.exe\EBWebView\BrowserMetrics-spare.pma
- C:\Users\<USER>\AppData\Local\Adobe\webview2\After_Effects_Set-Up_747d.exe\EBWebView\afa14f47-c1d3-4c38-8d6c-da033d84476b.tmp
- C:\Users\<USER>\AppData\Local\Adobe\webview2\After_Effects_Set-Up_747d.exe\EBWebView\Default\Code Cache\js\index-dir\the-real-index
- WAM.log
- Local\ChromeProcessSingletonStartup!
- __OMADM_NAMED_MUTEX__
- Global\OneSettingQueryMutex+compat+encapsulation
- Global\{3EBE6875-9C4E-4782-8A43-275AFFFCA6FB}
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- fbcfe23a2ecb82b7100c…dc0f2dNever scannednever seen before
- 94a3fa01c16f2edb2e21…f75b77Never scannednever seen before
- 840a9873aee1c0d78f63…968dc7Never scannednever seen before
- bc84c7767196a1609ef0…1509baNever scannednever seen before
- 65dc0882fbf6c4a7c827…91160fNever scannednever seen before
- c736834631bf84d8d0c9…19a0bcNever scannednever seen before
- a0c9abae18599f0a65fc…e38e87Never scannednever seen before
- b1e963d702392fb72247…c0cdecNever scannednever seen before
- 5dfc321417fc31359f23…4a2026Never scannednever seen before
- 0f1bad70c7bd1e0a6956…780443Never 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.
- 3rule hits recorded
- 0 / 75engines flagged
- 69sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
0 of 75 antivirus engines flagged the file.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 02
The file has a valid code signature from Adobe Inc..
ProvenanceObservedSourceCode-signing metadataObserved at - 03
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 04
Scanned file: Adobe Installer — 431400157f37bcf46734bbb21be3cc03e9fe206395f131d08162f885a811276c
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\Desktop\After_Effects_Set-Up_747d.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\Explorer.EXE
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: Connect — \Device\ConDrv\Connect
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: WAM.log — C:\Users\<USER>\AppData\Local\Temp\CreativeCloud\ACC\WAM.log
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 150.171.28.11 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 8.8.8.8 — 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.
EvidenceC:\Windows\Explorer.EXESandbox observed process activity targeting LSASS (Windows credential store). Legitimate software has no business reading LSASS memory — this is Mimikatz-shape behaviour.
EvidenceC:\Windows\system32\lsass.exeThe 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.
Evidence150.171.28.11 · 52.6.228.48 · 34.233.49.149
0 of 75 engines flagged this file
View all 75 engine results
Section entropy & packers
Executable sections have high entropy (7.2+) — the code is compressed or encrypted and only decrypted at runtime. Classic packing behaviour.
How widely this file has been seen
Moderate prevalence — neither rare nor common. No strong prior applies.
Fingerprint and provenance
- File name
- Adobe Installer
- Format
- Win32 EXE
- Code signing
- Signature valid: Adobe Inc.
- Size
- 3.4 MB
- Last analyzed
- Aug 16, 2026, 3:05 PM UTC
431400157f37bcf46734bbb21be3cc03e9fe206395f131d08162f885a811276cSafety & 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.