Office (OLE) / .DOC malware analysis — malicious · 2ab0ee3ef6ee8862

MALICIOUS

Office (OLE) / .DOC

38.0 KB Created: 2010-04-04 00:07:00 Authoring application: Microsoft Word 11.5.6

MD5: cc3cc99d8e6f42464777d6150dd1ca1f SHA-1: 6dc9cba6a7fb84c0c774c1d7cffe8dc1706c23f4 SHA-256: 2ab0ee3ef6ee8862bd7ba5acf2e2c8c39b674d45fe4a7266bb70364a1d29460b

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro. This macro is designed to execute automatically when the document is opened. While the specific payload is not visible in the provided evidence, the presence of an auto-executing macro strongly suggests a malicious intent, likely to download and execute a second-stage payload. The ClamAV detection as 'Doc.Trojan.Thus-8' further supports its malicious nature.

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` `1f1df94b445fd9240b18e6a7025cc8d56852d3354ce5e7154d45dc7fe82c79c3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2385 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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