Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 fe51efeb9164fa13…

MALICIOUS

Office (OLE)

36.5 KB Created: 2009-02-18 13:21:00 Authoring application: Microsoft Word 11.0
MD5: 664fb56940b091df6a4d6b5bb684248e SHA-1: accd154940bce141a6f248928dec3c5c122b111e SHA-256: fe51efeb9164fa13ff107d3cd4d33ae44818899c68b7370d1a85229e1bb94d4a
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 delivery mechanism for malware. The document body discusses FCAT testing regulations, a plausible lure to encourage users to open and interact with the document. While no specific malicious script content was extracted, the presence of the Document_Open macro and ClamAV detections strongly suggest it's designed to execute malicious code upon opening.

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.

FilenameKindSourceSize
macros.bas
4d840735f64370eed491ae174d4c3cebc63d105512970d4d44c50b8d8ee19f18		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4261 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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