Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 f2daa8b637b1fab9…

MALICIOUS

Office (OLE)

71.0 KB Created: 2008-08-26 17:44:00 Authoring application: Microsoft Word 11.5.0
MD5: 61f4e2e20e03d8625b86ec5478688e42 SHA-1: fabe6e640fed93f7b0e6bbf93d6f947854629d78 SHA-256: f2daa8b637b1fab918cce59fb264a1ac0a7608a1b57c449185cca7afa1fd2b59
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The ClamAV detection 'Doc.Trojan.Thus-10' further confirms its malicious nature. The document body, disguised as a lab report format, is a social engineering lure to trick the user into enabling macros.

Heuristics 4

  • ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-10
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fa78ec2d4e30dcebbfb60ac4999cfa0be2d50bd4f7b9a22224258ee898a980a1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2347 bytes
Detection
ClamAV: Doc.Trojan.Thus-10
Obfuscation or payload: unlikely

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