MALICIOUS — 5d5efb3126a0409c47503bd55ef2f967ad0c3d109e6d504129cc0181ce1c7979

MALICIOUS — 5d5efb3126a0409c47503bd55ef2f967ad0c3d109e6d504129cc0181ce1c7979 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Bulz family. 10 of 52 detection engines flagged it, exhibiting 4 ATT&CK techniques.

Identification

• SHA-256: 5d5efb3126a0409c47503bd55ef2f967ad0c3d109e6d504129cc0181ce1c7979
• SHA-1: 98202bf1ad51517f9333ff852717592330fbb73b
• MD5: fc9fbe68685454498e7e6c5dd523b81e
• imphash: 1e58427826d059c34cbf4b958693e4c4
• ssdeep: 12288:4aWzgMg7v3qnCiMErQohh0F4CCJ8lnyz3/06:vaHMv6Corjqnyz3/06
• TLSH: T19750A0A12135A73BD2B2E77868705BCF20B771AC11F919D85283C1EC31F5CAB942259B
• Submitted as: 5d5efb3126a0409c47503bd55ef2f967ad0c3d109e6d504129cc0181ce1c7979
• File type: pe · Size: 755979 bytes
• Verdict: malicious (99/100) · Family: Bulz

Detections (10 of 52 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• capa (capabilities): capability:collection/keylog
• MalwareAnalyser heuristics (entropy/packer): UPX
• ClamAV (daily): Win.Malware.Bulz-9940102-0
• YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Kaspersky (KVRT): Trojan-Downloader.Win32.Agent.gpyl
• Microsoft Defender: Trojan:Win32/AutoitGenome!pz
• Emsisoft (Emergency Kit): Gen:Variant.Tedy.850583

MITRE ATT&CK

• T1071.001
• T1057
• T1056.001
• T1055

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 99/100 is the fusion of 9 weighted signals:

• ClamAV (daily) flagged Win.Malware.Bulz-9940102-0 (rule Win.Malware.Bulz-9940102-0) - engine signal, weight 0.90, confidence 0.95
• Process injection API combination (rule Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90
• 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
• YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.35, confidence 0.70
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - 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 - static signal, weight 0.25, confidence 0.55
• enumerate processes (rule enumerate processes) - capa signal, weight 0.20, confidence 0.60

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 domains

• autoitscript.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report