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

Static analysis result for SHA-256 006eb3de7c7d6ef3…

MALICIOUS

Office (OLE) / .DOCX

214.3 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word
MD5: 9b2b071844e40c1c28224aed9af7001d SHA-1: a4770b084c19c17359a29f1f5b08d8bc8b0016f0 SHA-256: 006eb3de7c7d6ef36973d365810c036529acdcfeb2f53c7b8d9d3f36231d584e
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The heuristics indicate the use of CreateObject and GetObject, commonly used for downloading and executing payloads. The ClamAV detection as 'Doc.Downloader.Generic' further supports this. The VBA script appears to be obfuscated, but its structure suggests it is designed to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19249 bytes

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