Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 b48f948ce7cc871c…

MALICIOUS

Office (OLE)

53.0 KB Created: 2010-02-06 14:10:00 Authoring application: Microsoft Word 11.5.3
MD5: 588c6d691af20b3364eafe8094712c2a SHA-1: 2e7f86f6694e2987ec640cb9ea2050879b9cb62b SHA-256: b48f948ce7cc871c1886be84076e7dfe2ef1bb58fa1b89ea56bc35bb5b991380
180 Risk Score

Malware Insights

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

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body is formatted as a physical education activity log, likely a lure to encourage the user to open and interact with the malicious content. The presence of a Document_Open macro indicates an attempt to automatically execute code upon opening the document. The ClamAV detection as 'Doc.Trojan.Thus-8' further confirms its malicious nature.

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
043b348f539545938d9f6246f775bae2ec66691cac0cbe16c4f49d14cc6c6487		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2385 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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