MALICIOUS — swapfile.sys .exe

MALICIOUS — swapfile.sys .exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (87/100), attributed to the Mira family. 4 of 52 detection engines flagged it.

Identification

• SHA-256: 03f609896a74d8a1ed5cce6a68f900e6706983629c1eb2ec42a574949c9d17d3
• SHA-1: 7b840196ada7f3083657390a451872ae4c897c6d
• MD5: bf8c28e8812ce95343d6b28f989191d5
• imphash: 3a2003ea545fe942681da9e7683ebb58
• ssdeep: 12288:CxIK9V14ImyHY0JDGesADlIrOhtd1QexvV:CJEyY0JqesAD+rA9
• TLSH: T16449BFC494855CC4CB795E8CBB0DE85F59164801D2A60A8F8175ACFEEDAB3B3C9D80C9
• Submitted as: swapfile.sys .exe
• File type: pe · Size: 420288 bytes
• Verdict: malicious (87/100) · Family: Mira

Detections (4 of 52 engines)

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

Why this verdict

The malicious score of 87/100 is the fusion of 2 weighted signals:

• ClamAV (daily) flagged Win.Packed.Mira-7330891-0 (rule Win.Packed.Mira-7330891-0) - engine signal, weight 0.90, confidence 0.95
• Packing/obfuscation: high-entropy-sections:.lol 1 - 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