Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 9eb52691c2699b5c…

MALICIOUS

Office (OLE)

71.0 KB Created: 2009-05-06 08:37:00 Authoring application: Microsoft Office Word
MD5: dd5e4586f2d3b33f86319f6e0ad3959b SHA-1: 5ecc278c8c123b8e9ebc0a9812116b3e5a0f3355 SHA-256: 9eb52691c2699b5c13aab5db418d0fe8bba88a2d188924b8472c9c508d821c4c
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.Locale-1'. It contains embedded VBA macros, specifically a 'Document_Open' macro, which is a common technique for executing malicious code upon opening the document. The document body discusses a subcontracting agreement, suggesting a social engineering lure to trick the user into enabling macros.

Heuristics 4

  • ClamAV: Doc.Trojan.Locale-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Locale-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.
  • 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
43e469c9d0a235c1aa1c0f5f1cce74e3151ff730de28b2a88d62afd2c7164013		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1673 bytes
Detection
ClamAV: Doc.Trojan.Locale-1
Obfuscation or payload: unlikely

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