MALICIOUS — virussign.com_cdcc2dff72a24aa3615e9823aae0f180.vir

MALICIOUS — virussign.com_cdcc2dff72a24aa3615e9823aae0f180.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the Rubinurd family. 5 of 52 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 76a7cfef3d7b817e110ebabd3fad6ffeab57aec521067ea43189b3437d871302
• SHA-1: 022cd180ae2751a5178ec33026536f20f5fb0472
• MD5: cdcc2dff72a24aa3615e9823aae0f180
• imphash: 118eb37b88640d7f3f7ac979ea5687cc
• ssdeep: 384:yVxXzMF+yc03WyzLeReRGnniT1cln8OlIgV+QoWWb9kOe5dEP1gadc6hUuwcr4Bk:st5+NiVNlnTtopkvdE9Nc6XwcrWg
• TLSH: T1F0303799C790A69EC293B84234C3888EF02267ADF160D87B58D64B758CF4473BC31D99
• Submitted as: virussign.com_cdcc2dff72a24aa3615e9823aae0f180.vir
• File type: pe · Size: 36864 bytes
• Verdict: malicious (96/100) · Family: Rubinurd

Source: VirusSign · first seen 2026-08-13T00:00:00.000Z · SHA-256 verified

Detections (5 of 52 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: 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 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

File paths

• c:\temp\2015-05-01_22-53-25.dmp

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report