MALICIOUS — 4d6db650b2c6e0eb408cf8e3991f38894859a75ad3d9b32e162aebce3b8b3eb8

MALICIOUS — 4d6db650b2c6e0eb408cf8e3991f38894859a75ad3d9b32e162aebce3b8b3eb8 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the Filerepmalware family. 5 of 52 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: 4d6db650b2c6e0eb408cf8e3991f38894859a75ad3d9b32e162aebce3b8b3eb8
• SHA-1: c537e22d76879f3b7823241dca96e59b01033007
• MD5: e1da5c36109d61b3d45ec62a1583751f
• imphash: 9e747ee51ad11df670acefcead43be30
• ssdeep: 12288:CiYgNE/HEp64lQaVH8vaZ/MNj0bidyzNJbT7SU:egNE/HEp6uuxQfR
• TLSH: T1DE516B445406E14AD9F2D6626F502DAC8C7EF4AD2DB9D38C5BC3D99EF4E283360704A8
• Submitted as: 4d6db650b2c6e0eb408cf8e3991f38894859a75ad3d9b32e162aebce3b8b3eb8
• File type: pe · Size: 855366 bytes
• Verdict: malicious (96/100) · Family: Filerepmalware

Detections (5 of 52 engines)

• capa (capabilities): capability:collection/keylog
• ClamAV (daily): Win.Malware.Filerepmalware-9859683-0
• YARA: Yara-Rules community: YR_AntiDebug_Checks
• LIEF (executable format parser): lief:invalid-authenticode
• Microsoft Defender: Trojan:Win32/Wacatac.B!ml

MITRE ATT&CK

• T1056.001

Why this verdict

The malicious score of 96/100 is the fusion of 5 weighted signals:

• ClamAV (daily) flagged Win.Malware.Filerepmalware-9859683-0 (rule Win.Malware.Filerepmalware-9859683-0) - engine signal, weight 0.90, confidence 0.95
• capture keystrokes (rule capture keystrokes) - capa signal, weight 0.40, confidence 0.80
• YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70
• LIEF (executable format parser) flagged lief:invalid-authenticode (rule lief:invalid-authenticode) - engine signal, weight 0.35, confidence 0.70
• Embedded network infrastructure: 6.0.1.0 - static 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.

Embedded URLs

• http://crl.thawte.com/ThawteTimestampingCA.crl0
• http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
• http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
• https://www.verisign.com/rpa
• http://csc3-2010-crl.verisign.com/CSC3-2010.crl0D
• https://www.verisign.com/rpa0
• http://csc3-2010-aia.verisign.com/CSC3-2010.cer0
• https://www.verisign.com/cps0*
• http://logo.verisign.com/vslogo.gif04
• http://crl.verisign.com/pca3-g5.crl04
• http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
• http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
• http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
• http://office.microsoft.com
• http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
• http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0

Embedded domains

• jnlp.tk
• mozilla.org
• crl.thawte.com
• ts-aia.ws.symantec.com
• ts-crl.ws.symantec.com
• www.verisign.com
• csc3-2010-crl.verisign.com
• csc3-2010-aia.verisign.com
• logo.verisign.com
• crl.verisign.com
• crl.microsoft.com
• www.microsoft.com
• office.microsoft.com

Embedded IP addresses

• 6.0.1.0

File paths

• C:\re\jdk7u45\229\build\windows-amd64\tmp\jp2launcher\obj64\jp2launcher.pdb
• F:\Office\Target\x86\ship\postc2r\x-none\msouc.pdb
• X:\:d:
• H:\:`:p:t:x:
• X:\:l:p:

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report