Is FLSkinner.zip safe?
Two low-trust engines flagged the archive; all tier-1 engines and sandbox verdicts remained silent.
The file triggered only two low-trust detections out of 75 engines and produced no tier-1 consensus. Sandbox execution showed no malicious verdict and ten dropped children were clean.
ba5d5859ebed97ba0a…c9f355a3c448daRecommended next actions
Before opening or extracting
Open or extract it only when its sender or download source has been independently verified.
If you already opened or extracted 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 triggered only two low-trust detections out of 75 engines and produced no tier-1 consensus. Sandbox execution showed no malicious verdict and ten dropped children were clean.
The detection pattern matches the classic low-trust-only false-positive shape. The file is common_old with hundreds of prior submissions and no external-intel corroboration. Observed MITRE techniques are present but not corroborated by tier-1 engines or sandbox verdicts. No malicious children or contacted-host hits exist.
What We Detected
Two low-trust engines (Bkav, MaxSecure) reported generic malware labels; 17 tier-1 engines reported clean. Sandbox analysis recorded four offensive MITRE techniques but returned no malicious verdict.
Threat Behavior
The archive extracts an executable that loads several DLLs via rundll32 and writes configuration and skin files. No persistence mechanisms or malicious network activity were observed.
What To Do Now
Keep endpoint protection enabled. The file can be executed if obtained from a trusted source, but treat any unexpected behaviour as suspicious.
Where this verdict could be wrong1 caveat
- triggeredHeuristics shows MalwareTips.Synth.ProcessInjection (T1055) but sandboxVerdicts empty and no tier-1 detections
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 tier-1 detections
- Long-established prevalence
- No malicious dropped children
- Process-injection technique observed in sandbox (T1055)
The evidence supports treating the file as safe; continue normal security hygiene.
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
Not runNo contacted-host reputation check is recorded.
No timestamp recordedYARA
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
- 20MITRE ATT&CK techniques
- 15spawned processes
- 0network contacts
- 27filesystem & 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
FLSkinner.zip
ba5d5859ebed97ba0a1ba7cda2e39f40a98b501f37312cae4dc9f355a3c448da
01Uploaded file
Processes
Runtime execution
- ProcessObserved
Observed process
"C:\Users\<USER>\AppData\Local\Temp\FL Skinner/flskinner.exe"
02Isolated runtime analysis - ProcessObserved
Observed process
"C:\Windows\system32\rundll32.exe" "C:\Users\<USER>\AppData\Local\Temp\FL Skinner/flskinner_core.dll",#1
03Isolated runtime analysis - +1 more recorded observation in Analyst mode
Files
Created or changed
- Written fileObserved
flskinner.json
C:\Users\<USER>\AppData\Roaming\flskinner\flskinner.json
04Isolated runtime analysis - Written fileObserved
SimpleDarkSkin.json
C:\Users\<USER>\AppData\Roaming\flskinner\skins\SimpleDarkSkin.json
05Isolated runtime analysis - +1 more recorded observation in Analyst mode
5 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.
- C:\Users\<USER>\AppData\Roaming\flskinner\flskinner.json
- C:\Users\<USER>\AppData\Roaming\flskinner\skins\SimpleDarkSkin.json
- C:\Users\<USER>\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
- C:\Users\<USER>\AppData\Local\Microsoft\Windows\Explorer\iconcache_16.db
- C:\Users\<USER>\AppData\Local\Microsoft\Windows\Explorer\iconcache_256.db
- C:\Users\<USER>\AppData\Local\Packages\Microsoft.XboxGamingOverlay_8wekyb3d8bbwe\LocalCache\KnownGameList.bin
- C:\Users\<USER>\AppData\Local\Microsoft\GameDVR\KnownGameList.update
- Local\Shell.CMruPidlList
- Local\SessionImmersiveColorMutex
- Global\SyncRootManager
- ShellNewConsolidationMutex64
- Global\C::Users:azure:AppData:Local:Microsoft:Windows:Explorer:thumbcache_idx.db!rwWriterMutex
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 7f912b28a07c226e0be3…1da814Never scannednever seen before
- 77b5f2fc10941e57062d…ff2839Never scannednever seen before
- b3210386159360545b4b…5b3099Never scannednever seen before
- 3596776f7cc779e84705…703eabNever scannednever seen before
- 01bdf53261e6763aa9f2…7c6a59Never scannednever seen before
- 21e140dcafa3e251373a…af7686Never scannednever seen before
- ab01534e8878379c118f…0d40c6Never scannednever seen before
- f402135257c1a9b8a8ca…1cfcc2Never scannednever seen before
- 2834c2aa760bf2779490…867cb0Never scannednever seen before
- 0b4d1b66b1452c738162…14a0ecNever 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
- 387sources 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 387 sources.
Verdict inputView chapterProvenanceDerivedSourceSubmission historyObserved at - 02
1 high-confidence signature or behavior rule matched this file.
Verdict inputView chapterProvenanceDerivedSourceSignature and behavior rulesObserved at - 03
2 of 75 antivirus engines flagged the file, including Bkav and MaxSecure.
Verdict inputView chapterProvenanceObservedSourceAntivirus analysisObserved at - 04
Scanned file: FLSkinner.zip — ba5d5859ebed97ba0a1ba7cda2e39f40a98b501f37312cae4dc9f355a3c448da
ProvenanceObservedSourceUploaded fileObserved at - 05
Observed process — "C:\Users\<USER>\AppData\Local\Temp\FL Skinner/flskinner.exe"
ProvenanceObservedSourceIsolated runtime analysisObserved at - 06
Observed process — "C:\Windows\system32\rundll32.exe" "C:\Users\<USER>\AppData\Local\Temp\FL Skinner/flskinner_core.dll",#1
ProvenanceObservedSourceIsolated runtime analysisObserved at - 07
File written: flskinner.json — C:\Users\<USER>\AppData\Roaming\flskinner\flskinner.json
ProvenanceObservedSourceIsolated runtime analysisObserved at - 08
File written: SimpleDarkSkin.json — C:\Users\<USER>\AppData\Roaming\flskinner\skins\SimpleDarkSkin.json
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:\Windows\system32\rundll32.exe" "C:\Users\<USER>\AppData\Local\Temp\FL Skinner/flskinner_core.dll",#1
2 of 75 engines flagged this file
View all 75 engine results
PE structure
Not applicablePE structure analysis applies to Windows executable formats, not this file type.
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
- FLSkinner.zip
- Format
- ZIP
- Code signing
- Not applicable to this file type
- Size
- 4.4 MB
- Last analyzed
- Aug 17, 2026, 4:49 PM UTC
ba5d5859ebed97ba0a1ba7cda2e39f40a98b501f37312cae4dc9f355a3c448daSafety & 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 or extract it only when its sender or download source has been independently verified.
- 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 FLSkinner.zip safe?
What is FLSkinner.zip?
How many antivirus engines detected FLSkinner.zip?
What is the SHA-256 hash of FLSkinner.zip?
Is it safe to open or extract FLSkinner.zip?
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Community
Member reviews and reports for this exact file hash.