Office (OLE) malware analysis — malicious · a9c3dceca88027c5

MALICIOUS

Office (OLE)

30.5 KB Created: 1999-07-19 17:48:00 Authoring application: Microsoft Word 9.0

MD5: 1ebc813c651514b44d261c09f9c115e5 SHA-1: 14c5baa2c3240ca644488e7b96d5c17e0f50a9da SHA-256: a9c3dceca88027c53b49ef1bcd07a0676112c7d4d39113fbf5c196a08d13d9ba

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic

The file is an Office document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. ClamAV signatures indicate this is a known malicious document type (Doc.Trojan.Thus-8). No specific IOCs like URLs or hashes were extracted, but the presence of the Document_Open macro strongly suggests an attempt to run malicious code.

Heuristics 4

ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Thus-8
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` `fc6b1c69ee2539c40e9086930fd1c11a72c40003f2759b68da2f3d39a37cc9f7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2447 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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