Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 b327f701e8a0ae88…

MALICIOUS

Office (OLE)

39.5 KB Created: 2006-04-23 12:30:00 Authoring application: Microsoft Word 10.1
MD5: 52207b582b0611e3f1a52045054d9c0a SHA-1: 7be70e54cf2a11d656306b560bb72b9ae6de5b82 SHA-256: b327f701e8a0ae88cdcb14f2b39cacc0b1eeb925e2546969aa79763557137a12
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 the signature Doc.Trojan.Thus-8. It contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The document body, while seemingly motivational, serves as a lure to encourage the user to engage with the malicious content. No specific malware family could be confidently identified, but the presence of a Document_Open macro suggests an attempt to download and execute a second-stage payload.

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
a5c6a312d435fbe0dbbdb44a7eb4b8ca28801dadc0b47266138cf2d5f32abe40		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2364 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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