Is Mechvibes.Setup.2.3.4.exe safe?
Unsigned installer with process-injection indicators, direct-IP contacts, and two YARA matches but zero AV detections.
The file shows no engine detections across 74 scanners yet exhibits process injection, direct-IP communication, and two community YARA rules. High submission volume and an imphash match to a prior safe sample exist, but the unsigned status and behavioural flags create mixed signals.
8b1158f6552a30da70…b290edbb8a222eRecommended next actions
Before installing
Do not install it until the source and publisher can be verified independently.
If you already installed it
Stop using it, scan the device, and watch for unexpected behavior or security alerts. Download a fresh installer 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.
The file shows no engine detections across 74 scanners yet exhibits process injection, direct-IP communication, and two community YARA rules. High submission volume and an imphash match to a prior safe sample exist, but the unsigned status and behavioural flags create mixed signals.
Zero malicious detections from all engine tiers including 17 tier-1 engines points away from known malware. However, the sandbox recorded five offensive MITRE techniques, direct-IP contacts without DNS, and two YARA rules explicitly targeting obfuscation and generic RAT behaviour. The file is unsigned with no signer history, and adversarial comment injection was flagged. While prevalence is high and one imphash-similar file was previously marked safe, the behavioural and YARA evidence outweighs the clean engine results.
What We Detected
68 of 74 engines reported the sample clean; none flagged it malicious. Two community YARA rules matched: Sus_Obf_Enc_Spoof_Hide_PE and win_rat_generic. Sandbox execution revealed process injection (T1055), token manipulation (T1134), service creation (T1543.003), registry run-key persistence (T1547.001), and data archiving (T1560). Fourteen external IPs were contacted directly with no DNS resolution.
Threat Behavior
The installer drops multiple NSIS helper DLLs and creates mutexes consistent with overlay or hook mechanisms. No malicious child files or known-bad hosts were identified. The combination of direct-IP C2 and process-injection techniques is atypical for benign installers.
What To Do Now
Run the file only in an isolated environment. Verify the download source and consider an alternative signed distribution if available. Monitor for unexpected outbound connections or new services.
Where this verdict could be wrong3 caveats
- Zero engine detections and common_old prevalence suggest a legitimate NSIS installer, yet the YARA rules and direct-IP behaviour create conflicting signals.
- The single similar-hash RAG entry is an imphash-only match without signer correlation, weakening its weight toward safe.
- adversarialInputFlags.anyInjectionSuspected=true via commentInjectionSuspected raises the possibility of manipulated metadata.
These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.
- Zero detections from 74 engines including 17 tier-1
- common_old prevalence (3729 submitters)
- No malicious dropped children or contacted hosts
- Process injection (T1055) observed in sandbox
- Direct-IP contacts without DNS resolution
- Two YARA rules matched (obfuscation + generic RAT)
- File is unsigned
- adversarialInputFlags.anyInjectionSuspected=true
Treat as suspicious pending further verification; do not execute on production systems without isolation.
Coverage & freshness
Complete means the check returned a usable result. It does not mean the file is safe.
Antivirus
Complete0 of 74 engines flagged the file.
Sandbox
Complete1 isolated runtime environment contributed observations.
Network
Partial20 runtime contacts were observed without a completed reputation cross-check.
YARA
Complete4 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
- 29MITRE ATT&CK techniques
- 15spawned processes
- 20network contacts
- 36filesystem & 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 an input-capture technique that can record credentials or keystrokes.
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: Manipulated how the operating system loads code, which can redirect execution.
Moderate concern: Contained obfuscated or packed code that makes inspection harder.
Moderate concern: Runs hidden system commands (script or shell).
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
Mechvibes.Setup.2.3.4.exe
8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222e
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
%SAMPLEPATH%\8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222e.exe
02Isolated runtime analysis - ProcessObserved
Observed process
C:\Windows\SysWOW64\WerFault.exe
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
System.dll
C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\System.dll
04Isolated runtime analysis - Written fileObserved
UAC.dll
C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\UAC.dll
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
Network
Hosts contacted
- Contacted hostObserved
192.168.0.33
Contact observed during runtime.
06Isolated runtime analysis - Contacted hostObserved
23.216.81.152
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.
- 192.168.0.33
- 23.216.81.152
- 151.101.22.172
- 192.168.0.53
- 20.99.186.246
- 23.59.198.43
- 20.99.133.109
- 20.99.185.48
- 184.25.191.235
- 192.168.0.2
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\System.dll
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\UAC.dll
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\StdUtils.dll
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\modern-wizard.bmp
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\nsDialogs.dll
- C:\Windows\System32\wbem\Performance\WmiApRpl.h
- C:\Windows\System32\wbem\Performance\WmiApRpl.ini
- %USERPROFILE%\AppData\Local\Microsoft\Windows\INetCache\IE\KLT1I0ZU\update50[1].xml
- C:\Users\<USER>\AppData\Local\Temp\nsd8137.tmp
- C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp
- 103c406d-39aa-59c5-a59b-04d7e94ef690
- \Sessions\1\BaseNamedObjects\103c406d-39aa-59c5-a59b-04d7e94ef690
- \Sessions\1\BaseNamedObjects\Global\SyncRootManager
- \Sessions\1\BaseNamedObjects\Local\AtomProcessSingletonStartup!
- \Sessions\1\BaseNamedObjects\hook_running_mutex
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- a632d74332b3f08f834c…e8f1d7Never scannednever seen before
- 2f7f8fc05dc4fd0d5cda…52dc08Never scannednever seen before
- b72e9013a6204e9f0107…31601eNever scannednever seen before
- 2079f7a3eba60e0d9ee8…733109Never scannednever seen before
- feb6364375d0ab081e9c…21c0beNever scannednever seen before
- 34f6f27c26d1bb8682eb…b7d05bNever scannednever seen before
- 63b85583b3969027a0e5…308b31Never scannednever seen before
- 269fa9d2aa1d126ffe5b…199734Never scannednever seen before
- 115ea7a6d6cea3982871…f3fa89Never scannednever seen before
- dca0cd7272a56801dd74…440dffNever 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.
- 4rule hits recorded
- 0 / 74engines flagged
- 3,729sources in submission history
Why these facts are shown
Each statement identifies whether it was directly recorded or derived from saved scan facts.
- 01
3 high-confidence signature or behavior rules matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 02
0 of 74 antivirus engines flagged the file.
ProvenanceObservedSourceAntivirus analysisObserved at - 03
The hash has a long, established submission history across 3,729 sources.
ProvenanceDerivedSourceSubmission historyObserved at - 04
Scanned file: Mechvibes.Setup.2.3.4.exe — 8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222e
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — %SAMPLEPATH%\8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222e.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — C:\Windows\SysWOW64\WerFault.exe
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: System.dll — C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\System.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: UAC.dll — C:\Users\<USER>\AppData\Local\Temp\nst82CE.tmp\UAC.dll
ProvenanceObservedSourceIsolated runtime analysisObserved at - 09
Contacted host: 192.168.0.33 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at - 10
Contacted host: 23.216.81.152 — Contact observed during runtime.
ProvenanceObservedSourceIsolated runtime analysisObserved at
Detection sources at a glance
The available sources did not agree on a named threat category.
One or more independent reference databases matched 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.
- Sus_Obf_Enc_Spoof_Hide_PE
- win_rat_generic
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
Evidence%SAMPLEPATH%\8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222e.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.
Evidence23.216.81.152 · 151.101.22.172 · 20.99.186.246
0 of 74 engines flagged this file
View all 74 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
- Mechvibes.Setup.2.3.4.exe
- Format
- Win32 EXE
- Code signing
- No verified publisher
- Size
- 61.8 MB
- Last analyzed
- Jul 11, 2026, 6:34 AM UTC
8b1158f6552a30da70aff106d4ab129e08980175e440c5945bb290edbb8a222eSafety & 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 install 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. Download a fresh installer 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 Mechvibes.Setup.2.3.4.exe safe, or is it malware?
What is Mechvibes.Setup.2.3.4.exe?
How many antivirus engines detected Mechvibes.Setup.2.3.4.exe?
What should I do if I already installed Mechvibes.Setup.2.3.4.exe?
How do I remove Mechvibes.Setup.2.3.4.exe?
What is the SHA-256 hash of Mechvibes.Setup.2.3.4.exe?
How up to date is this analysis of Mechvibes.Setup.2.3.4.exe?
Community
Member reviews and reports for this exact file hash.