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

Static analysis result for SHA-256 4f03a07d12b7dcd6…

MALICIOUS

Office (OLE) / .DOC

72.0 KB Created: 2010-01-20 10:58:00 Authoring application: Microsoft Word 12.0.0
MD5: 13a0a8ed7a9b77944f61654a0ce0bfd6 SHA-1: e6e35021c42b177be8c0b4f94eba1cec26021ff1 SHA-256: 4f03a07d12b7dcd63811a9e8c0410c91972911d23efb1fcc308783d1f258c5fa
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. The ClamAV detection 'Doc.Trojan.Thus-8' further confirms its malicious nature. The document body appears to be a business registration with contact details, likely intended to lend legitimacy to the macro prompt. No specific malware family could be identified, and no external URLs or network indicators were found.

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://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
ed223f6ca7b0b6642699838751a51d848671e07c03025f515efa648bb634e7dd
vba-macro oletools.olevba.extract_macros (decoded VBA source) 2335 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely