Office (OLE) / .DOCX malware analysis — malicious · 3a790405c981ba9b

MALICIOUS

Office (OLE) / .DOCX

45.0 KB Created: 1995-07-13 12:50:00 Authoring application: Microsoft Word 8.0

MD5: 83a045f7c12c9a00915b85d530379002 SHA-1: 473a7e6eaee3a261f1e401786262b0b6e8971993 SHA-256: 3a790405c981ba9bbce77265ce9167df25bfd7a7cf6416af650e76dce2444372

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic

The sample is a Microsoft Word document containing VBA macros, specifically an AutoOpen macro, which is a common delivery mechanism for malware. The macro attempts to display messages to the user, including one suggesting the file might be infected. While the script is truncated, the presence of AutoOpen and the ClamAV detection (Doc.Trojan.Allen-2) strongly indicate malicious intent, likely to deceive the user or initiate further malicious actions.

Heuristics 4

ClamAV: Doc.Trojan.Allen-2 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Allen-2
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.
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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` `1ce72b9b5de3b5ed5c630f5021f159e37d840c1a8fa4fd9205141cf4d25e2272`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7322 bytes
Detection ClamAV: Doc.Trojan.Allen-2 Obfuscation or payload: unlikely

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