Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5582a391249741f9…

MALICIOUS

Office (OLE)

38.0 KB Created: 2009-09-22 13:11:00
MD5: cb520008a53cf27364d90288f3f88197 SHA-1: aefa61dd66eee0217325a05cecbcf11e0df661f0 SHA-256: 5582a391249741f9ba4009bb221d9579d9586ec100685e4d0e6cec7b1722b797
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. Static analysis detected VBA macros, specifically a Document_Open macro, indicating that the file is designed to execute code automatically when opened. The document body does not contain any malicious lures, suggesting the malicious functionality is entirely contained within the VBA macros. No specific malware family could be confidently identified.

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://mtg.upf.edu/people/eakin
    • http://mtg.upf.edu/people/eakinEducation:Universitat
    • http://mtg.upf.edu/static/libsms/
    • http://mtg.upf.edu/static/libsms/UPF

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
12f7be7a814aab1bca0f3793230439cbaa3d1696a9d89e77f3ba225c444b4b36
vba-macro oletools.olevba.extract_macros (decoded VBA source) 2373 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely