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

Static analysis result for SHA-256 6eb7889d705322ae…

MALICIOUS

Office (OLE) / .DOCX

155.2 KB Created: 2020-09-14 19:47:00 Authoring application: Microsoft Office Word
MD5: b742ebf996f9752b613d1e2463538ecb SHA-1: aa6d03037506dc2f8e4f02cb3b6e0f9b14a8ea64 SHA-256: 6eb7889d705322ae1a17f1b7bb05f17e5d428836248afe4463b8e43c29d8deb9
202 Risk Score

Malware Insights

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

The sample is a Word document containing VBA macros, with a high-confidence heuristic indicating the presence of a Document_Open macro designed for auto-execution. The VBA code utilizes CreateObject, a common technique for launching malicious processes or downloading further stages. While the specific payload is not directly visible due to obfuscation, the presence of the Document_Open macro strongly suggests an intent to execute arbitrary code upon file opening, likely for downloading and executing a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760307-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760307-0
  • 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
0b6180fea2f2eb783f5bda16a3b3f9aadc8aaa21f7b3f16e95bf573cb2bafb66		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18514 bytes

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