MALICIOUS — 377a2b3bae84b3551b21bab9c773585a199fa3c9a34708bb4990dbaa769e6d27

MALICIOUS — 377a2b3bae84b3551b21bab9c773585a199fa3c9a34708bb4990dbaa769e6d27 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (93/100), attributed to the Mailru family. 3 of 52 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 377a2b3bae84b3551b21bab9c773585a199fa3c9a34708bb4990dbaa769e6d27
• SHA-1: c2b49957fb31942ea5fdadb4a5c203cbcd4e1229
• MD5: 65fc9c36b0944e1be7fcae7d19d93dcf
• imphash: 8a4577fdb4b5d78b693c6b36a8aa9414
• ssdeep: 3072:DrAVguiZxHF02SOacgAf+9mzB7y7YRguXt:DWgVZ1vGAfL1X
• TLSH: T1BE3F7BC9522A7704E2B3D7605C404E1CD09BF4DB36BE39590E87C12F33A6D6BA9341A9
• Submitted as: 377a2b3bae84b3551b21bab9c773585a199fa3c9a34708bb4990dbaa769e6d27
• File type: pe · Size: 158352 bytes
• Verdict: malicious (93/100) · Family: Mailru

Detections (3 of 52 engines)

• ClamAV (daily): Win.Malware.Mailru-6804211-0
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• Kaspersky (KVRT): not-a-virus:HEUR:AdWare.Win32.Machaer.gen

MITRE ATT&CK

• T1071.001

Why this verdict

The malicious score of 93/100 is the fusion of 4 weighted signals:

• ClamAV (daily) flagged Win.Malware.Mailru-6804211-0 (rule Win.Malware.Mailru-6804211-0) - engine signal, weight 0.90, confidence 0.95
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: http://sv.symcb.com/sv.crl0a, https://d.symcb.com/rpa0, http://sv.symcb.com/sv.crt0 - 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://sv.symcb.com/sv.crl0a
• https://d.symcb.com/rpa0
• http://sv.symcb.com/sv.crt0
• http://www.symauth.com/cps0
• http://www.symauth.com/rpa00
• http://s1.symcb.com/pca3-g5.crl0
• http://logo.verisign.com/vslogo.gif0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• http://crl.thawte.com/ThawteTimestampingCA.crl0
• https://gosoftdl.mail.ru/switcher_pd_3_9.exe

Embedded domains

• sv.symcb.com
• d.symcb.com
• www.symauth.com
• s1.symcb.com
• logo.verisign.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• crl.thawte.com
• gosoftdl.mail.ru

File paths

• c:\Build\desktop_apps\_out\launcher.pdb
• T:\:d:l:t:
• X:\:`:d:h:l:p:t:x:
• c:\Build\desktop_apps\launcher\json/gason.h
• c:\build\desktop_apps\launcher\json\gason.h

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report