Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 425b6181a9bcdd3b…

MALICIOUS

Office (OLE) / .DOC

60.0 KB Created: 2010-04-12 09:35:00 Authoring application: Microsoft Word 11.5.6
MD5: 5a6f7c453c17199d0c0449936a2fad25 SHA-1: f0b6325c07751d86ab5ac8e01f756dba418bc232 SHA-256: 425b6181a9bcdd3b6ea0cc5864c1d1c2bb180598b2f549c9d455ed447271f69e
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. ClamAV identified the file as 'Doc.Trojan.Thus-8'. The presence of the 'macros.bas' file indicates that the VBA code is the primary mechanism for malicious activity, likely downloading and executing a second-stage payload. The embedded URL was confirmed as benign and is not considered a threat.

Heuristics 5

  • 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
  • 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://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
6ab2261a029f9d9ab697f4c911d4e2e374176c8c995f3ac03e77ca0914d56344
vba-macro oletools.olevba.extract_macros (decoded VBA source) 2383 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely