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

Static analysis result for SHA-256 061cdd9bf9505472…

MALICIOUS

Office (OLE) / .DOCX

153.4 KB Created: 2020-09-14 22:09:00 Authoring application: Microsoft Office Word
MD5: a1c3e3eabb00af31a0c1b6684d61b53a SHA-1: b6367d38c2278034371a5fd682b6fdbac290cf56 SHA-256: 061cdd9bf95054729c409879d11d74c56ae0808ee7858234932993776586d315
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for delivering malicious payloads. The heuristics indicate the use of CreateObject and p-code execution, suggesting the macro attempts to download and execute a second-stage payload. The ClamAV detection further supports its malicious nature. The specific payload and its destination are not clearly discernible due to obfuscation.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760527-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760527-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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
bf2dc6e4793502154f28a14458af4f5198ccc48932a5641a4c34f7f1fcdc0c82		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18582 bytes

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