MALICIOUS — virussign.com_89438d8371ec5f577f5475355d0651b0.vir

MALICIOUS — virussign.com_89438d8371ec5f577f5475355d0651b0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the Rubinurd family. 5 of 51 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 7201488de560439fa3a63d854d0c20faf04eb4863340d01a77a3e0fc26bebbe8
• SHA-1: d69c00b11d17b8d1ce2239581f842e2605bda166
• MD5: 89438d8371ec5f577f5475355d0651b0
• imphash: 118eb37b88640d7f3f7ac979ea5687cc
• ssdeep: 384:R4xUgRBTYg5Ey4MfyzLeReRvn3XXlYd5eEEoqVa2vz/0OJyrjmy2G6:eblYdFi4XX+5DEowa3OOKy56
• TLSH: T18931C0A8C720A6ADD19B701674EF888EE06227AEF524E76B55C043748CF4573BC31D68
• Submitted as: virussign.com_89438d8371ec5f577f5475355d0651b0.vir
• File type: pe · Size: 40960 bytes
• Verdict: malicious (96/100) · Family: Rubinurd

Source: VirusSign · first seen 2026-08-03T00:00:00.000Z · SHA-256 verified

Detections (5 of 51 engines)

• YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
• ClamAV (daily): Win.Trojan.Rubinurd-67
• YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
• Microsoft Defender: Trojan:Win32/Injector.ARA!MTB
• Kaspersky (KVRT): HEUR:Trojan.Win32.Miancha.gen

MITRE ATT&CK

• T1547.001
• T1055

YARA

• Windows_Injection_Api_Combo

Why this verdict

The malicious score of 96/100 is the fusion of 4 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
• YARA: MalwareAnalyser community pack flagged TL_Shellcode_VirtualAlloc_Exec (rule TL_Shellcode_VirtualAlloc_Exec) - engine signal, weight 0.35, confidence 0.70
• 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

More Rubinurd samples · Latest analyzed threats · ATT&CK coverage

Analyzed on MalwareAnalyzer by Cyble · Open interactive report