Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6020cc76f5909dae…

MALICIOUS

Office (OLE)

40.5 KB Created: 2008-04-16 14:34:00 Authoring application: Microsoft Word 10.1
MD5: eabae212945bf4eaf2050aa17993c620 SHA-1: 1b0fd881b5d8424c305f1b201d211cf504ba3bf0 SHA-256: 6020cc76f5909daec48459cf6470405a5fd4aecdcb1c5c77f57b99578572ecc4
180 Risk Score

Malware Insights

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

The sample is a malicious Microsoft Word document containing VBA macros, specifically a Document_Open macro. The macro attempts to disable virus protection and copy itself to the Normal template and other open documents, indicating an attempt to establish persistence and spread. The ClamAV detection name 'Doc.Trojan.Thus-8' further confirms 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
865b383dd20177a81b4634b53bbd8de7061c8833b4a9b97e6f9a1065b7fab625		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2347 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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