Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e7a7e99d54a203a0…

MALICIOUS

Office (OLE)

34.0 KB Created: 2009-09-15 18:35:00 Authoring application: Microsoft Word 11.5.0
MD5: 695e3f949dad0b1270f53f733d1fe829 SHA-1: 74f2d14d4b218137398c8eec7dae4c1909c50c59 SHA-256: e7a7e99d54a203a0c0056ef5348ca905f0849748c2d5d9ab2367230bbe19ab8c
180 Risk Score

Malware Insights

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

The file is an Office document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body contains seemingly innocuous text about jokes, likely a lure to encourage the user to enable macros. The presence of a Document_Open macro suggests an attempt to execute malicious code upon opening the document.

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
a6c74b36509b45faadd01425c1c135851fb95e267dbaecb277f53c7f236434de		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2377 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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