MALICIOUS — virussign.com_42a740482ce2dd0a8c1b1790e9e70c30.vir

MALICIOUS — virussign.com_42a740482ce2dd0a8c1b1790e9e70c30.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (93/100), attributed to the Expiro family. 6 of 51 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 7f92f0272a4647f2f680528e2d624abbb72531da0668ba8ecc64e906d8e84ef4
• SHA-1: 3f4cf5e5778b301c8dfac73e7c36891279872f29
• MD5: 42a740482ce2dd0a8c1b1790e9e70c30
• imphash: f7d9aa1586a9bf8d3a6f315b71206fa9
• ssdeep: 12288:QxkNKLa4V4B2xWQJW2L1QklqYuVe+4nGU/JxryfXxM:+kj2xWQJWalqYae+mz/Jx2xM
• TLSH: T1464F49440907B2A7EBF7B6121830579CF64772BA667C2B5C5B06E02E404F927CBD249E
• Submitted as: virussign.com_42a740482ce2dd0a8c1b1790e9e70c30.vir
• File type: pe · Size: 688158 bytes
• Verdict: malicious (93/100) · Family: Expiro

Source: VirusSign · first seen 2026-08-02T00:00:00.000Z · SHA-256 verified

Detections (6 of 51 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Ransomware.Expiro-9975896-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Microsoft Defender: Virus:Win64/Expiro.DE!MTB
• Emsisoft (Emergency Kit): Win64.Ransom.A
• Kaspersky (KVRT): HEUR:Trojan.Win64.AsowWiper.c

MITRE ATT&CK

• T1056.001

Why this verdict

The malicious score of 93/100 is the fusion of 3 weighted signals:

• ClamAV (daily) flagged Win.Ransomware.Expiro-9975896-0 (rule Win.Ransomware.Expiro-9975896-0) - engine signal, weight 0.90, confidence 0.95
• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - 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

• ug.mi.oc.co
• schemas.microsoft.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report