MALICIOUS — a5c5a914600974be1bdf9dc5ca7eb87dab6018acafe96285b5312aeff8d99fc0

MALICIOUS — a5c5a914600974be1bdf9dc5ca7eb87dab6018acafe96285b5312aeff8d99fc0 is a script sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (90/100), attributed to the Obfuse family. 3 of 50 detection engines flagged it.

Identification

• SHA-256: a5c5a914600974be1bdf9dc5ca7eb87dab6018acafe96285b5312aeff8d99fc0
• SHA-1: 10a4fcfb56669ee0b6b236cb1bc6f9fbce035ae9
• MD5: 826fb881309eeec829e8de08c5bfe155
• ssdeep: 12:VteghMees4cmcY7BcUZ5HhcVKxMFDu9t8aVuaVeCqRSUz3NVHSuDR7wRsR:/egxMTddHhc+rKBCqZyuN4sR
• TLSH: T18311702722601DEF991E458FA338D2BF15A355D7B93630F175C4974218F2C29E443091
• Submitted as: a5c5a914600974be1bdf9dc5ca7eb87dab6018acafe96285b5312aeff8d99fc0
• File type: script · Size: 711 bytes
• Verdict: malicious (90/100) · Family: Obfuse

Detections (3 of 50 engines)

• Microsoft Defender: Trojan:VBS/Obfuse.HNAA!MTB
• Emsisoft (Emergency Kit): VB:Trojan.Miner.CA
• Kaspersky (KVRT): HEUR:Trojan.VBS.Agent.gen

Why this verdict

The malicious score of 90/100 is the fusion of 5 weighted signals:

• Microsoft Defender flagged Trojan:VBS/Obfuse.HNAA!MTB (rule Trojan:VBS/Obfuse.HNAA!MTB) - engine signal, weight 0.55, confidence 0.85
• Emsisoft (Emergency Kit) flagged VB:Trojan.Miner.CA (rule VB:Trojan.Miner.CA) - engine signal, weight 0.55, confidence 0.85
• Kaspersky (KVRT) flagged HEUR:Trojan.VBS.Agent.gen (rule HEUR:Trojan.VBS.Agent.gen) - engine signal, weight 0.55, confidence 0.85
• Obfuscated vbscript script: wmi (rule script-deobfuscation) - static signal, weight 0.35, confidence 0.75
• Contacted 6 external host(s) at runtime - network signal, weight 0.12, confidence 0.55

Dynamic analysis (linux)

866 behavior events · 0 ATT&CK techniques · 1 dropped files.

Runtime network

• 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• 252.0.0.224.in-addr.arpa
• 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
• ntp.ubuntu.com
• desktop-hsgcbep
• 224.0.0.251
• ff02::fb
• ff02::1:3
• 224.0.0.252
• 10.240.0.1
• 169.254.255.255
• 10.240.0.255
• 48.211.4.16 US · Ashburn · AS8075 Microsoft Limited
• 255.255.255.255
• 185.125.190.57
• 224.0.0.22
• ff02::16
• ff02::2
• 185.125.190.56

Dropped files

• tmp_tmp.EtVOmKLJjA - 114b13c0004a79f1f7f6f8e5120082ad4262df01d87958617c1a1e6e610a4a6b

Embedded domains

• proc.name

Embedded IP addresses

• 48.211.4.16
• 203.26.79.13
• 57.154.63.210
• 40.84.85.40

File paths

• C:\Users\analyst\AppData\Roaming\Microsoft\svchcst.exe

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

Analyzed on MalwareAnalyzer by Cyble · Open interactive report