Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 ed7eef460c4c5217…

MALICIOUS

Office (OLE)

596.5 KB Created: 2009-10-19 18:57:00 Authoring application: Microsoft Word 11.5.3
MD5: d1be671116aa559225d74b752e6c598a SHA-1: 5a35da6832bdfbe283b383e350e7fff9e890b911 SHA-256: ed7eef460c4c521772a88bf2dc77539be9bd776fe5c7d8fb9cc348c6e51f1215
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 severity heuristics. The presence of VBA macros, specifically a Document_Open macro, indicates that the document is designed to execute code upon opening. The macros are likely responsible for downloading and executing a second-stage payload, a common technique for malware delivery. No specific family could be identified from the available evidence.

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c070163d2039f70f5a54e001aaeee2db48ece633fdbfa461df066f21196606c1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4298 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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