Office (OLE) malware analysis — malicious · aff083bbb038ca34

MALICIOUS

Office (OLE)

52.0 KB Created: 2009-12-17 19:10:00 Authoring application: Microsoft Word 11.5.0

MD5: cf821170a6ee0dfde085d019ff439c0a SHA-1: 567509a55e4054f47fbb07fd4af327c6261099d6 SHA-256: aff083bbb038ca3497446063c50979cf02bf4e126128bdf64e65dc562a6c424a

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. The document body discusses AP Chemistry exam formats, suggesting a lure to encourage users to enable macros. The ClamAV detection 'Doc.Trojan.Thus-8' further confirms its malicious nature. No specific IOCs like URLs or hashes were extracted from the macros themselves.

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` `e200816a962350a1dbb90d8f7c35a6b6051b062b84232e939c1730be5c61c134`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2353 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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