Office (OLE) malware analysis — malicious · 5844eb98de88fd10

MALICIOUS

Office (OLE)

87.0 KB Created: 2007-08-01 08:30:00 Authoring application: Microsoft Word 10.1

MD5: f6f11832912f4767c5ad575d5345bf1c SHA-1: 6bd3bd8bf55fdbfdf26ca2cc7b471b90fefed36c SHA-256: 5844eb98de88fd109bc1fa850698d972916564fc02ce4881ab48b873bd3ed1a4

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1204.002 Malicious File

The sample is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body presents itself as a confidential business communication, a common lure to trick users into enabling macros. ClamAV detections (Doc.Trojan.Thus-8) on both the main file and an extracted artifact indicate a known malicious pattern. The embedded URLs likely serve as indicators for the download of further malicious content.

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` `eb277a36b3cfd7b950101fc54bdc0c131d71ce2671bbfaec0e864187ee8f13eb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2362 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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