Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 425477403e7fea5e…

MALICIOUS

Office (OLE)

2.31 MB Created: 2009-06-24 20:59:00 Authoring application: Microsoft Word 11.5.3
MD5: 4db69b9ecc46afe31489bb811ee61d34 SHA-1: ee3b1066f6dd1327739608184f50e47ff4151160 SHA-256: 425477403e7fea5eebf57280a78fb6a84f6c91d7c053499bf3076a6ef7cf785b
180 Risk Score

Malware Insights

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

The file is a malicious Office document containing VBA macros, as indicated by multiple high and critical heuristic firings, including ClamAV detection. The document body presents educational content about the American Revolution, likely as a lure to encourage macro execution. The presence of a Document_Open macro suggests an attempt to automatically run malicious code upon opening.

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
f7fad8578a6a59b46fe25286130ce2a5fd64905b6b3c08ce40e186de71a85e09		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2402 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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