Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 f46108cec5da0c28…

MALICIOUS

Office (OLE)

37.5 KB Created: 1999-10-26 10:06:00 Authoring application: Microsoft Word 8.0
MD5: 60d9ca9c9a1f5683c316132bb7be3721 SHA-1: c58e9e61af9fd152c58fe9100326f669d193edda SHA-256: f46108cec5da0c2882e5cca7e80144b5d18fa2ae63ea0f8233c50eba0b36e16d
180 Risk Score

Malware Insights

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

The file is an OLE document containing VBA macros, specifically an AutoOpen macro, which is a strong indicator of malicious intent. The ClamAV detection 'Doc.Trojan.Model-2' further confirms its malicious nature. The document body presents a list of administrative procedures and approvals, likely intended to appear legitimate and encourage the user to enable macros to view the full content. No scripts were extracted, but the presence of AutoOpen macro suggests it executes malicious code upon opening.

Heuristics 4

  • ClamAV: Doc.Trojan.Model-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Model-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
a70e77c39aa544f6bdc70147c96b585f353ffd32639c67c7a86befa4067edfc3		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1441 bytes
Detection
ClamAV: Doc.Trojan.Model-2
Obfuscation or payload: unlikely

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