Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 967931e698a4dc6a…

MALICIOUS

Office (OLE)

96.0 KB Created: 1999-12-07 11:39:00 Authoring application: Microsoft Word 8.0
MD5: bba8d38b86c456da5a8e6c9d3e763729 SHA-1: f91e7d75846ce0f208d994e68597f0fe3df6bd94 SHA-256: 967931e698a4dc6a8373c17d2320ee455e5dc5140e0fab12b51343c9c61ca959
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file is identified as malicious by ClamAV with multiple detections, including 'Doc.Trojan.VMPCK1-16' and 'Doc.Trojan.Ozwer-1' on an extracted artifact. The presence of AutoOpen and Auto_Close VBA macros indicates that malicious code is designed to execute automatically when the document is opened or closed. The document body's content appears to be a lure, presenting statistical analysis information to mask the malicious intent of the embedded macros.

Heuristics 5

  • ClamAV: Doc.Trojan.VMPCK1-16 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.VMPCK1-16
  • 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.
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close 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
23051c4f138289feaf0520b32397d2727d6199784c6fb2a055949619bd2c6796		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 29054 bytes
Detection
ClamAV: Doc.Trojan.Ozwer-1
Obfuscation or payload: unlikely

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