Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 cebf9576ebb1710a…

MALICIOUS

Office (OLE)

39.0 KB Created: 2006-02-09 18:55:00 Authoring application: Microsoft Word 9.0
MD5: f6614bbcbf7970d7abe8c5d1ee331c93 SHA-1: 80a9e501c0576b4f552200bec4f4310e10348627 SHA-256: cebf9576ebb1710afe8cc95cb932f4c0e141f90e32f11c7e6a0385b42b2707e4
188 Risk Score

Malware Insights

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

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body presents a fake invoice or payment lure related to a school bus service, aiming to trick the user into interacting with the malicious content. The presence of an embedded URL and the ClamAV detection as 'Doc.Trojan.Walker-1' strongly indicate malicious intent, likely to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Trojan.Walker-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Walker-1
  • 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.rahigh.org

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
094434a1fdfb38d85bff7fcdb5d1353484bbc444b026affe8d3472219f83a744		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3158 bytes
Detection
ClamAV: Doc.Trojan.Walker-1
Obfuscation or payload: unlikely

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