Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e22c17d020de471b…

MALICIOUS

Office (OLE)

103.0 KB Created: 2009-11-30 06:00:00 Authoring application: Microsoft Word 11.0
MD5: 8416617e883298854bac0f6ce0a88cb5 SHA-1: c8c335761bf4fa075c2da82f001d1dd95b2c5846 SHA-256: e22c17d020de471b4121d44c280b8b99c640bcbf843063258e6b140b22223af2
180 Risk Score

Malware Insights

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

The file is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body is crafted as an artist's expression of interest, a social engineering lure to encourage users to enable macros. The presence of a Document_Open macro indicates the intent to execute malicious code upon opening the document, likely to download and run a secondary payload. The ClamAV detection as 'Doc.Trojan.Thus-5' further confirms its malicious nature.

Heuristics 4

  • ClamAV: Doc.Trojan.Thus-5 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-5
  • 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
afc82bdf00669cbbc586056bf5191484ed7a30840580ece56b553b6823f92500		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2357 bytes
Detection
ClamAV: Doc.Trojan.Thus-5
Obfuscation or payload: unlikely

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