Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3243b2c43d7c15e6…

MALICIOUS

Office (OLE)

117.0 KB Created: 2006-08-31 07:41:00 Authoring application: Microsoft Word 11.0
MD5: 0c27a84844ba89f992e9abc6eaefc3ce SHA-1: a691f37c0077f9204447c2b215d39414553c58e0 SHA-256: 3243b2c43d7c15e6668618ed3e1e39a9bb00b23c10d23a7874951f5e2f195043
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 critical heuristics indicating the presence of VBA macros and a Document_Open macro. The macros are likely responsible for downloading and executing additional malicious content. The embedded URLs, while not directly used in the provided script excerpt, are potential indicators of compromise.

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.dieter-huber.com/news-mauroner.html
    • http://www.galerie-mam.com
    • http://www.dieter-huber.com/news-mauroner.htmlMARIO

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
a2a242daf2022a18fceb3b2c045188b5232c25988eb012d3eb05f2d5ab15463c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 5269 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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