Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 70c931f4aa9c4b09…

MALICIOUS

Office (OLE)

54.5 KB Created: 2008-12-18 22:06:00 Authoring application: Microsoft Word 11.2
MD5: 4827f3eb4afdd13df14865e8fcb4fc52 SHA-1: b60d3770fd19901a795085be20fd8df518338298 SHA-256: 70c931f4aa9c4b09dcd712e31c6f0919b10eb7deeb738b46f8b4d0cebdd0b2bb
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1547.001 Registry Run Keys / Startup Folder

The sample is identified as malicious by ClamAV with the signature Doc.Trojan.Thus-8. It contains a VBA macro within the Document_Open subroutine, which is designed to ensure the macro's persistence by copying itself to the Normal template and other open documents. The macro also attempts to disable virus protection, indicating malicious intent to evade detection.

Heuristics 4

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
148463b71af2433c061c528c6bb7ae214dfa6ef6dc4d157d2709c1351df19400		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2349 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.