MALICIOUS — virussign.com_fa343ccd439f26eb292f27e532cad440.vir

MALICIOUS — virussign.com_fa343ccd439f26eb292f27e532cad440.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (89/100), attributed to the Expiro family. 5 of 51 detection engines flagged it.

Identification

• SHA-256: aea83d771fd248919cfd70311bdc0c16cc03dc738f3c0659e81d3be400a5ea55
• SHA-1: 1a107a7740fb06ee62a5ab83130bf68b3bd5349a
• MD5: fa343ccd439f26eb292f27e532cad440
• imphash: b56826133c70057d8e22a14c501a4ecd
• ssdeep: 24576:ly5/Ba7O5rr+xrzRTTxH2qjYXzGAiGFn4w7z:liBf5rrmpFYXLFj
• TLSH: T13E52F19B4227A2A2FAF5E9B89C448CAC88B1B52C7034D54D4D83CD3D60D2137D9F65A3
• Submitted as: virussign.com_fa343ccd439f26eb292f27e532cad440.vir
• File type: pe · Size: 965120 bytes
• Verdict: malicious (89/100) · Family: Expiro

Source: VirusSign · first seen 2026-07-31T00:00:00.000Z · SHA-256 verified

Detections (5 of 51 engines)

• ClamAV (daily): Win.Virus.Expiro-10005865-0
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Microsoft Defender: Virus:Win32/Expiro.HAB!MTB
• Emsisoft (Emergency Kit): Trojan.GenericKD.80980718
• Kaspersky (KVRT): UDS:Trojan.Win64.Kryplod

Why this verdict

The malicious score of 89/100 is the fusion of 2 weighted signals:

• ClamAV (daily) flagged Win.Virus.Expiro-10005865-0 (rule Win.Virus.Expiro-10005865-0) - engine signal, weight 0.90, confidence 0.95
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• http://schemas.microsoft.com/SMI/2005/WindowsSettings

Embedded domains

• logging.cc
• schemas.microsoft.com

Registry keys

• HKLM\Software\Google\UpdateDev\
• HKLM\Software\Policies\Google\Update\
• HKCU\Software\Google\Update\
• HKCU\Software\Google\Update\ClientState\
• HKLM\Software\Google\Update\ClientState\
• HKLM\Software\Google\Update\
• HKLM\Software\Microsoft\Windows
• HKLM\Software\Google\Update\ClientStateMedium\

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report