Office (OLE) / .DOC malware analysis — malicious · 7c942fb3c4b3bf3b

MALICIOUS

Office (OLE) / .DOC

42.5 KB Created: 2010-08-14 07:04:00 Authoring application: Microsoft Word 11.5.3

MD5: bcf94a4006ab96fce2ab88389ccc5e94 SHA-1: bdc139a12290ccd667c0e9146e54f6c1efcae1f6 SHA-256: 7c942fb3c4b3bf3bdfa2360ae82229fc1f800d08ebd214bcffec840b005b82c5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The ClamAV detection of 'Doc.Trojan.Thus-8' on an extracted artifact strongly suggests malicious intent. The VBA macros are likely responsible for downloading and executing a second-stage payload, as indicated by the heuristic firings.

Heuristics 3

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` `81e55b5392adae51309fc020dd4595f27210e5a2870cf340c456113adda9d865`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2344 bytes
Detection ClamAV: Doc.Trojan.Thus-8 Obfuscation or payload: unlikely

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