Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 0baec1c0a4381b26…

MALICIOUS

Office (OLE)

71.0 KB Created: 2009-04-24 04:35:00 Authoring application: Microsoft Word 11.5.3
MD5: 7ea3fe2fe2ab70a9f069cea333cd0d36 SHA-1: c9fabf80e7d781f73dc157a72f7abaf531d6a9c6 SHA-256: 0baec1c0a4381b266c6394ce7ee2cfefbb2832deab9ff0017dab90eedd450c71
182 Risk Score

Malware Insights

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. It contains a VBA macro that executes automatically via the Document_Open event, indicating an attempt to establish persistence or download additional payloads. The macro code is designed to copy itself to the Normal template and other open documents, ensuring it runs whenever Word is opened.

Heuristics 5

  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
016e7ef2d9f53040430ed0df896b9a62128acb5145de9c70454cf53068cf10c8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2361 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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