Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 9afb1437f34ab244…

MALICIOUS

Office (OLE)

93.0 KB Created: 2009-05-19 17:35:00 Authoring application: Microsoft Word 12.0.0
MD5: 4cb0e5bbecb571f43c397e42b119f7eb SHA-1: 0961fd31ace8ec58e2d911f5f534dba83a7270d5 SHA-256: 9afb1437f34ab2442dd75f187dd770c0b98b5f602a164fdf6fa482f49e01a9eb
180 Risk Score

Malware Insights

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

The file contains a VBA macro, specifically a Document_Open macro, which is a common technique for initiating malicious activity. The ClamAV detection 'Doc.Trojan.Thus-8' further indicates malicious intent. The embedded URLs, while not definitively malicious, are suspicious and could be used for payload delivery. The macro likely attempts to download and execute a second-stage payload from one of these URLs.

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.riskreactor.com/Fluorescent_Pigments/Fluorescent_Pigments_Main.htm
    • http://www.riskreactor.com/Fluorescent_Pigments/Fluorescent_Pigments_Main.ht
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
148463b71af2433c061c528c6bb7ae214dfa6ef6dc4d157d2709c1351df19400		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2349 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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