Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 34a4e18d8fcdf9b0…

MALICIOUS

Office (OLE)

52.5 KB Created: 2010-04-12 12:39:00 Authoring application: Microsoft Macintosh Word
MD5: 309077c7be5f2915659929d204ebb72b SHA-1: 581346194b1e0cf9b55d0f6e125d8b11bf72249a SHA-256: 34a4e18d8fcdf9b0e3212a276369c86149b4b8e15eb17be35b335d1176aa8a2f
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1505.003 Server Software Component: Document Server

The file is identified as malicious by ClamAV with the signature 'Doc.Trojan.Thus-8'. Static analysis detected VBA macros, specifically a 'Document_Open' macro, which is a common technique for executing malicious code upon opening the document. The presence of this macro suggests the document is designed to download and execute a secondary payload.

Heuristics 5

  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
cc485c8c32f6cbe3ede6f17c27fbe5979c9646fa6dc93242dabaa5d072082eb4		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2307 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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