Office (OLE) malware analysis — malicious · 48f1f16f7388fbdf

MALICIOUS

Office (OLE)

58.5 KB Created: 2010-03-24 19:07:00 Authoring application: Microsoft Word 10.0

MD5: a9365d6eee22824a82e9315a3281544e SHA-1: a24c1210da7e80ef4af07362d838c4f449f2663f SHA-256: 48f1f16f7388fbdf4154ea905de0b5e3a3bdcc1074f25d9923be547e25adeefa

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with multiple critical heuristic firings indicating the presence of VBA macros. The 'Document_Open' macro is specifically flagged, suggesting it executes upon opening the document. While no specific URLs or further script details were extracted, the presence of a VBA macro within an Office document strongly suggests an attack pattern involving macro-enabled execution, likely to download and run a secondary payload. The document body content appears benign, indicating the malicious functionality is solely within the macros.

Heuristics 4

ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Marker-40
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` `f3081497ad7645096f17cd16d171edd1e5dc56ef3e26c89fd952681bec81b4d1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4286 bytes
Detection ClamAV: Doc.Trojan.Marker-2 Obfuscation or payload: unlikely

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