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

Static analysis result for SHA-256 0b4686326341aa61…

MALICIOUS

Office (OLE) / .DOCX

207.2 KB Created: 2020-10-28 18:42:00 Authoring application: Microsoft Office Word
MD5: 50c83f363b32cf56d1677aa92bd2b43e SHA-1: 1677dcc946489c30fa331cee26959971ac682c80 SHA-256: 0b4686326341aa6170756e22822c138bc6d813412182af4238dd97fc39ea37ac
202 Risk Score

Malware Insights

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The script appears to be obfuscated but the presence of CreateObject and the ClamAV detection strongly suggest it's a downloader. The embedded URL, though benign, is likely a placeholder or part of the obfuscation.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • 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
e949db65d47346cd391eb9bc49c66a713688cfea31c7cb788a6d1dce1ea9efc6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18584 bytes

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