MALICIOUS — FlatOut_fix.exe

MALICIOUS — FlatOut_fix.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (94/100), attributed to the HUILoader family. 6 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 4855d5f494b39f0cb0deb87d682790d4b13054c841f66640e400bf72bc9e1e88
• SHA-1: 78131929b960b5f3811a83599ec15fcf66d57063
• MD5: 21a67359c08a3c620338f1ceb8d0aa79
• imphash: 24b60c57cc33f3e633431b7ad497fda7
• ssdeep: 1536:3UUUUUUUUUUHdTD+vvvvvvvvvh+UUUUUUUC9mIkkkkkkTyhhhhhhhMSTZM+9m2Ov:blN9RkkkkkkTLSBvze
• TLSH: T1713AD040357A389CD7309F611524598DA12152C28A3D3DDA9B030B2D2D7B8FBB8E8F76
• Submitted as: FlatOut_fix.exe
• File type: pe · Size: 101413 bytes
• Verdict: malicious (94/100) · Family: HUILoader

Detections (6 of 55 engines)

• MalwareAnalyser heuristics (entropy/packer): UPX
• ClamAV (daily): Win.Trojan.Generic-9908425-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• Detect It Easy (packer/type): DIE:Turbo Linker
• Microsoft Defender: Trojan:Win32/Upantix.GM!MTB
• Kaspersky (KVRT): HEUR:Packed.Win32.Upantix.gen

MITRE ATT&CK

• T1071.001

Why this verdict

The malicious score of 94/100 is the fusion of 5 weighted signals:

• ClamAV (daily) flagged Win.Trojan.Generic-9908425-0 (rule Win.Trojan.Generic-9908425-0) - engine signal, weight 0.90, confidence 0.95
• YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70
• Detect It Easy (packer/type) flagged DIE:Turbo Linker (rule DIE:Turbo Linker) - engine signal, weight 0.35, confidence 0.70
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, confidence 0.60
• Packing/obfuscation: UPX, high-entropy-sections:UPX1, Turbo Linker - 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