MALICIOUS — swapfile.sys .exe

MALICIOUS — swapfile.sys .exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (91/100), attributed to the Mira family. 5 of 55 detection engines flagged it.

Identification

• SHA-256: 33d9bcc92ee07ddc5713886b73b7f5e1f86cd4fc2f08eac14e7195ed8ab3cb3b
• SHA-1: 8229eb2797902858add5bd335b7a5f97cedf957d
• MD5: 75793c9c8418c687cc5cc4722a595d17
• imphash: 3a2003ea545fe942681da9e7683ebb58
• ssdeep: 6144:6BxIK3CTW8TMjp41u6nyHwnZ4Mml6FpwNzwvcfxves4az/9s:CxIK9V14ImyHY4MmleefxvD4axs
• TLSH: T18B49AD5CBC032EC4CCD94890C0EE6BDC8F0E48E556C2B581E6DD9F668A59093CAB57D8
• Submitted as: swapfile.sys .exe
• File type: pe · Size: 420286 bytes
• Verdict: malicious (91/100) · Family: Mira

Detections (5 of 55 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.lol 1
• ClamAV (daily): Win.Packed.Mira-7330891-0
• Detect It Easy (packer/type): DIE:MinGW
• Microsoft Defender: Trojan:Win32/Krap!pz
• Kaspersky (KVRT): HEUR:Trojan.Win32.Generic

Why this verdict

The malicious score of 91/100 is the fusion of 3 weighted signals:

• ClamAV (daily) flagged Win.Packed.Mira-7330891-0 (rule Win.Packed.Mira-7330891-0) - engine signal, weight 0.90, confidence 0.95
• Detect It Easy (packer/type) flagged DIE:MinGW (rule DIE:MinGW) - engine signal, weight 0.35, confidence 0.70
• Packing/obfuscation: high-entropy-sections:.lol 1, MinGW - static signal, weight 0.25, confidence 0.55

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.

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report