Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5675cf607a1d3dbe…

MALICIOUS

Office (OLE)

142.0 KB Created: 2010-07-19 17:53:00 Authoring application: Microsoft Macintosh Word
MD5: c50af54fdd5a6b9b92b70d6f84727c83 SHA-1: d93458c48b8dda51f727ff3bc792b982bd43e86d SHA-256: 5675cf607a1d3dbe5a6b75407453ad9192f696b09dc641c836df1242c0d164d3
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is an OLE document with a high-confidence heuristic firing for VBA macros and a critical ClamAV detection. The Document_Open macro is present, indicating that the malicious code executes automatically upon opening the document. The document body presents a plausible lure as a school orientation schedule. No specific malware family could be identified, and no external IOCs were extracted.

Heuristics 5

  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
48fe43c512f1156a0db52e143827c1dd9641716c493acd753eac8dcf7f10624e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4262 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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