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

Static analysis result for SHA-256 7e660a22311a160e…

MALICIOUS

Office (OLE) / .DOC

197.5 KB Created: 2010-05-26 18:37:00 Authoring application: Microsoft Word 11.5.6
MD5: fe5385f7c519fd7cf0d0acdf3c1d1eff SHA-1: 927718cc22c3c9c80d102482dfa56436273cb251 SHA-256: 7e660a22311a160efb0eea3a12bda9551c629428bad52f78255c4b3c8d6b2538
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is a malicious Word document containing VBA macros, specifically a Document_Open macro designed to execute malicious code upon opening. The macro attempts to disable virus protection and copy itself to other documents, indicating an effort to spread and persist. The presence of a URL within the document suggests it may be used to download a secondary payload. The ClamAV detection 'Doc.Trojan.Thus-8' further confirms its malicious nature.

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://ketubahgraphia.com/wp/wp-content/uploads/2010/05/HebrewKeyboard.png
    • http://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
6fa87484f5a7bd594deaa6894322046530777794159720a8241d425da207bfdb
vba-macro oletools.olevba.extract_macros (decoded VBA source) 2378 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely