Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 f3e487a989e7cf80…

MALICIOUS

Office (OLE)

34.5 KB Created: 2001-01-29 13:20:00 Authoring application: Microsoft Word 8.0
MD5: 8a28ddeae0a06115a1194370467a7f06 SHA-1: e761c41627029f4f5848120ea00c89f165cda410 SHA-256: f3e487a989e7cf804fb3ea8a780a903db7f1022e9c322afc4eb04e3f63ca5379
180 Risk Score

Malware Insights

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

The file is an OLE document containing VBA macros, specifically an AutoOpen macro, which is a common delivery mechanism for malware. Heuristics indicate it's a known trojan (Win.Trojan.Pivis-2 and Doc.Trojan.Vmpc-1). The document body, presented as a clinical trial plan, is a lure to entice the user to open the malicious content. No specific scripts were extracted for further analysis, but the presence of AutoOpen and the heuristic detections strongly suggest malicious intent.

Heuristics 4

  • ClamAV: Win.Trojan.Pivis-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Pivis-2
  • 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.
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
ceae7517cbbf9e338148ff9b100108a652326c5c4c3aa6d98085e82e841f2cb5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3601 bytes
Detection
ClamAV: Doc.Trojan.Vmpc-1
Obfuscation or payload: unlikely

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