Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 fa74d04a7843a969…

MALICIOUS

Office (OLE)

57.0 KB Created: 2007-03-08 12:30:00 Authoring application: Microsoft Word 10.0
MD5: 7861828588ad9929186bebfa0d8d4af1 SHA-1: 7b9124648cad946b3eab4989d467a10547b88c5e SHA-256: fa74d04a7843a9696aa4f97f49b20f8671b60523d5792bfa53f492c281eefce5
180 Risk Score

Malware Insights

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

The file is an Office document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body is formatted as a research paper assignment, likely intended to trick the user into opening and enabling macros. The presence of embedded URLs, although not directly used in the macro logic presented, suggests a potential for further malicious activity or information gathering. The ClamAV detections further confirm its malicious nature.

Heuristics 5

  • ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-40
  • 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.multcolib.org/homework/sochc.html
    • http://www.multcolib.org/homework/civilrights/index.html
    • http://www.multcolib.org/homework/sochc2.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
7e6f19581770b53ccac704a96342e3c281a934ceeb9a5cf836506786df16605b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4236 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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