Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6e18b5e56e17d7cc…

MALICIOUS

Office (OLE)

42.0 KB Created: 2010-02-04 14:32:00 Authoring application: Microsoft Word 11.5.6
MD5: 1436e95f2a80f96771380cf6ff228ab1 SHA-1: 6168bdee593c4e12d093f0269bcc7df41ff59092 SHA-256: 6e18b5e56e17d7cc0982934002d47b55cd43237f6ecf7992f4b00cfc3900cf9a
180 Risk Score

Malware Insights

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

The sample is a malicious Microsoft Word document containing VBA macros, specifically a Document_Open macro designed to execute automatically. The macro's intent is unclear due to truncation, but ClamAV detections indicate it's a known trojan marker. The document body presents a Java syllabus as a lure to encourage macro execution.

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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