Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 08199516d92b92e0…

MALICIOUS

Office (OLE)

39.5 KB Created: 2008-07-16 15:06:00 Authoring application: Microsoft Word 10.0
MD5: 186d470002ec97e85ee52ffdc426abb0 SHA-1: 06374d22b88c34b97a4cc53de976a25304c06d83 SHA-256: 08199516d92b92e0065ad06409f29dda85149d936d88ee9c4609111d4de929bd
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is a malicious Office document containing VBA macros. The macros are designed to copy themselves to other open documents, indicated by the `currcomp.CodeModule.AddFromString thecode.lines(mystart, mylines)` and `currcomp.CodeModule.InsertLines` calls. This behavior suggests an attempt to spread the malicious macro or establish persistence across documents. No specific family could be identified.

Heuristics 3

  • ClamAV: Doc.Trojan.Title-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Title-1
  • 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.
  • 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
8b4f3c0da8f19a947a457940c6447deaae03774d3cfd0f7df4547cfc16021ece		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2886 bytes
Detection
ClamAV: Doc.Trojan.Title-1
Obfuscation or payload: unlikely

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