Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 400b8ef0bcba0543…

MALICIOUS

Office (OLE)

166.5 KB Created: 2008-08-09 19:43:00 Authoring application: Microsoft Word 11.0
MD5: 9e855925f17e6203a10b8e922052a39c SHA-1: ba7e2e8811bb4a5b656f6b2bd87f881a18f779b2 SHA-256: 400b8ef0bcba05439868b6db3949bad3acf9977f155e313e42ef2ac9988f739d
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. It contains VBA macros, specifically a 'Document_Open' macro, which is a common technique for executing malicious code upon opening the document. The presence of an embedded URL suggests a potential download or redirection mechanism. The macro's execution is the primary attack vector, likely leading to the download of a second-stage payload.

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.habershamschools.com/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d5dfd90c333e3722f3c3aa1196602617640c6d4dd308728d3a0f50c89cb55472		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2405 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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