Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 58a55a13078238b3…

MALICIOUS

Office (OLE)

55.0 KB Created: 2010-04-08 15:02:00 Authoring application: Microsoft Word 10.0
MD5: 8ecc9bc8c7be99d1e1331d5bb950edfa SHA-1: 5e4025a5e0a3e6075f664d7710113b921e243eaa SHA-256: 58a55a13078238b3b26853252529a7153dc88090857d0e5cf5770ccb15799be3
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 critical severity heuristics. The presence of VBA macros, specifically a Document_Open macro, indicates an attempt to automatically execute code upon opening. The document body contains text related to a classroom, suggesting a lure to encourage macro enablement. No specific IOCs were extracted, and the macro content was not available for detailed analysis.

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
96218079a2f14740f1e8032e8129381b620886e6481105988732f231ffb05bbc		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4284 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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