Office (OLE) / .DOC malware analysis — malicious · 346311434a85c44b

MALICIOUS

Office (OLE) / .DOC

49.0 KB Created: 2010-04-21 15:45:00 Authoring application: Microsoft Word 11.0

MD5: 84791af2ce2410b869680920f7b6427a SHA-1: f7d69d5bb04d4e39a7a89dff5d9e4af5c18160e6 SHA-256: 346311434a85c44b5949eea926089089169973cac83a3aae49b42a9e81687582

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic

The sample is a Microsoft Word document with a detected VBA macro, specifically a Document_Open macro. This macro is likely designed to execute malicious code upon opening the document, as indicated by the critical ClamAV detection of 'Doc.Trojan.Thus-7'. The document body presents itself as an invitation to a business forum, a common social engineering tactic to encourage users to enable macros.

Heuristics 4

ClamAV: Doc.Trojan.Thus-7 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-7
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `089a806be371313d0fffdf7cb46c39cda1c60e7f00491534567e149d6ed6a49e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4197 bytes
Detection ClamAV: Doc.Trojan.Thus-7 Obfuscation or payload: unlikely

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