Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 07a35faea4cc05dd…

MALICIOUS

Office (OLE)

40.5 KB Created: 2009-04-28 22:25:00 Authoring application: Microsoft Word 10.1
MD5: 3b1e788e31e224285b00c820ef372541 SHA-1: af302c373eb9063470ab5e359056973c33b9cbc4 SHA-256: 07a35faea4cc05dd879f0eaac52082cf42936043287e79b0fb22266c12c6a732
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening a document. The ClamAV detection 'Doc.Trojan.Thus-8' strongly indicates malicious intent. The macro code appears to be designed to ensure its persistence and execution, likely to download and execute a secondary payload, although the full execution chain is truncated.

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.

FilenameKindSourceSize
macros.bas
5e2602ddc7165a653be4caac3d8c30c495c302d979cc7e0ab54b72de9627165d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2364 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.