MALICIOUS — tsk_1bc76ed418744e90.exe

MALICIOUS — tsk_1bc76ed418744e90.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (95/100), attributed to the Rubinurd family. 4 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 0c0ae4e376c504533ca578b16bb3bb80d6be6d6044587f965827962aee913aa1
• SHA-1: 64dc31ce3d14e70fbb41a779d7a1d10780056dd3
• MD5: 53c738075f1d53dc41f9672c8bcd2d7d
• imphash: 118eb37b88640d7f3f7ac979ea5687cc
• ssdeep: 384:yVxXRjKeia3WyzLeReRWnnJSw010KBC+P9YnbFWkac3O523g:sbjsaNiZ4yKBEnCQOI3g
• TLSH: T142300694CB28A65DE297B40270D3449EF12663ADF1A0E9BB69C407708CF4873BC71D98
• Submitted as: tsk_1bc76ed418744e90.exe
• File type: pe · Size: 36864 bytes
• Verdict: malicious (95/100) · Family: Rubinurd

Detections (4 of 55 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• ClamAV (daily): Win.Trojan.Rubinurd-67
• Microsoft Defender: VirTool:Win32/CeeInject.gen!DU
• Kaspersky (KVRT): HEUR:Trojan-Ransom.Win32.Blocker.gen

MITRE ATT&CK

• T1547.001
• T1055

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 95/100 is the fusion of 3 weighted signals:

• ClamAV (daily) flagged Win.Trojan.Rubinurd-67 (rule Win.Trojan.Rubinurd-67) - 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
• persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, 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.

Registry keys

• HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

File paths

• c:\temp\2015-05-01_22-53-25.dmp

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report