Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 a760ea16122f9c67…

MALICIOUS

Office (OLE) / .DOC

182.8 KB Created: 2019-12-20 12:36:00 Authoring application: Microsoft Office Word
MD5: 342b8bd633412402546be47bb4fc13ca SHA-1: c8020f4cf1b67d8fb7fdf53eee96d48a1c4a4bb9 SHA-256: a760ea16122f9c674d2b7c726d7ddea832e721cb2d69f5a8df897b8be61ddbfe
200 Risk Score

Malware Insights

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

The file is a malicious OLE document containing VBA macros, specifically a Document_Open macro that uses GetObject. This indicates an attempt to automatically execute code when the document is opened. The presence of the 'macros.bas' artifact and the ClamAV detection 'Doc.Downloader.Generic-7469762-0' strongly suggest this document acts as a downloader for further malicious content.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-7469762-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-7469762-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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
d0844ef7b32133ef07fde84d5acd81b4b90e55e7250312c6bd74e6c9fcd45973		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7699 bytes

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