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

Static analysis result for SHA-256 6d286893b955a059…

MALICIOUS

Office (OLE) / .DOCX

256.3 KB Created: 2020-10-29 06:41:00 Authoring application: Microsoft Office Word
MD5: 94f0191df4703d76e0a566896d870c91 SHA-1: a579b4c47a256cad55308eae83a2ef3c50617be8 SHA-256: 6d286893b955a059d95b5772225320468d25de07c950a96bc6afce310565bb2e
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a malicious Office document containing a VBA macro that executes upon opening. The macro is heavily obfuscated but appears to be designed to download and execute a secondary payload, as indicated by the 'CreateObject' call and the 'Doc.Downloader.EmotetRed02224-9938637-0' ClamAV detection. The obfuscated nature of the script and the lack of specific indicators prevent confident family attribution.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
3a8074405c54d9e6984963caa3cafcf4e8c3b540e24ba2ba0a45964d8f0aaa49		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18973 bytes

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