MALICIOUS — virussign.com_66bbe368d85be9807d5465c325d9c850.vir

MALICIOUS — virussign.com_66bbe368d85be9807d5465c325d9c850.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (92/100), attributed to the Convagent family. 4 of 55 detection engines flagged it, exhibiting 2 ATT&CK techniques.

Identification

• SHA-256: 911e8d9e7b6a0c9e020359c4d635319fdf2fccc466229285153c69e179ed6c63
• SHA-1: 8308eb33939ee61f9779010a4af49743e7c149e6
• MD5: 66bbe368d85be9807d5465c325d9c850
• imphash: 20c3dae8b5858a3256f3a0cb80094852
• ssdeep: 3072:5m87+KH8//ov1Ji5gBJqSXDBx1Lfo3UHnS8dY/FNG4qDXhJgBqL:5m6+Y8H81JieJ/rZoz8kN1qDXhJg2
• TLSH: T1323CF1622E782398E6928A9BAE884C1CE472537CDFF2049965C3EC5953DDE372524C48
• Submitted as: virussign.com_66bbe368d85be9807d5465c325d9c850.vir
• File type: pe · Size: 122392 bytes
• Verdict: malicious (92/100) · Family: Convagent

Detections (4 of 55 engines)

• ClamAV (daily): Win.Malware.Convagent-9981433-0
• Microsoft Defender: Trojan:Win32/Zusy.CCJL!MTB
• Emsisoft (Emergency Kit): Trojan.GenericKDZ.119224
• Kaspersky (KVRT): Trojan.Win32.Agent.gen

MITRE ATT&CK

• T1547.001
• T1071.001

Why this verdict

The malicious score of 92/100 is the fusion of 4 weighted signals:

• ClamAV (daily) flagged Win.Malware.Convagent-9981433-0 (rule Win.Malware.Convagent-9981433-0) - engine signal, weight 0.90, confidence 0.95
• persist via registry run key (rule persist via registry run key) - capa signal, weight 0.35, confidence 0.60
• Embedded network infrastructure: http://app.csvhost.info/loader/spoolsv.tmp, http://app.csvhost.info/loader/ - static signal, weight 0.35, confidence 0.60
• communicate over HTTP (rule communicate over HTTP) - capa signal, weight 0.30, 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 URLs

• http://app.csvhost.info/loader/spoolsv.tmp
• http://app.csvhost.info/loader/

Embedded domains

• app.csvhost.info

File paths

• D:\Dropbox\My

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report