Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 38b8b5954c248591…

MALICIOUS

Office (OLE)

45.5 KB Created: 2010-04-06 16:05:00 Authoring application: Microsoft Word 11.5.3
MD5: d7cc9cc67942455b8b590f299dae02d5 SHA-1: b1ce24d955c55eea170bf85347aab6d8d031e268 SHA-256: 38b8b5954c248591553a65b93e72cb7a74cf9cc17cc9d973abc2a69451c913f6
180 Risk Score

Malware Insights

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

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body is a lure for a collaborative playwriting assignment, designed to trick the user into opening and potentially enabling macros. The presence of a Document_Open macro indicates an attempt to automatically run malicious code upon opening the document. The ClamAV detection 'Doc.Trojan.Thus-8' further supports its malicious nature.

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b5d6397a639aea7e2160842fc8169a05a961bba80fe717d2db5bd8ee955dd774		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2360 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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