Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 54f11def3adaad2f…

MALICIOUS

Office (OLE)

211.0 KB Created: 2008-11-17 17:29:00 Authoring application: Microsoft Word 11.3.8
MD5: 8609ea83b44882861ea379b3a30f6c08 SHA-1: a6dd16cba4c63e73bbbb3c993d8f898a99333991 SHA-256: 54f11def3adaad2f3fcfbb6bc350e2ae94f1261647678375d2483f2f174ce416
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with multiple signatures indicating a trojan. The presence of a Document_Open macro strongly suggests that the VBA code within the document is designed to execute automatically when the file is opened, likely to download and execute a secondary payload. No specific family could be identified from the available heuristics and metadata.

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d41c9267beb7aeb9002f6cfedc0d926f627e1f4f0feade367b7ea63422dfcbca
vba-macro oletools.olevba.extract_macros (decoded VBA source) 4225 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely