Office (OLE) / .DOC malware analysis — malicious · f3b3e67dbe28a98a

MALICIOUS

Office (OLE) / .DOC

37.0 KB Created: 2009-10-30 03:15:00 Authoring application: Microsoft Office Word

MD5: b7e0bcbad6d1406a4d264d7a08141a0a SHA-1: 09c917f6ceb36d0c377f6463c5a8fec32c1fafd3 SHA-256: f3b3e67dbe28a98a288db57804227153d115626a9f80acd7910a65a28a1c24e9

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, as indicated by the OLE_VBA_MACROS heuristic. The presence of a Document_Open macro (OLE_VBA_DOCOPEN) suggests that the malicious code executes automatically upon opening the document. ClamAV detections (Doc.Trojan.Locale-1) confirm its malicious nature. The macros are likely intended to download and execute a secondary payload, a common technique for initial access and further system compromise.

Heuristics 4

ClamAV: Doc.Trojan.Locale-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Locale-1
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` `0aa804957b1d57d1316720506c0f2a6df46b58340977bdf9c2ae0c19fef2a07b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1650 bytes
Detection ClamAV: Doc.Trojan.Locale-1 Obfuscation or payload: unlikely

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