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

Static analysis result for SHA-256 6a14b0c30175c029…

MALICIOUS

Office (OLE) / .DOCX

162.4 KB Created: 2020-12-30 10:10:00 Authoring application: Microsoft Office Word
MD5: 24ddc3731d4d5393d8f4a958e3742e7f SHA-1: bf4ea5df43fe4e23f057f8ffcb7671572ea64c2f SHA-256: 6a14b0c30175c029ffd20001912c51cd6a7084240acef0ab1139cfadec64b5a1
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample contains a VBA macro that executes upon opening the document. This macro utilizes CreateObject to interact with the file system, attempting to create and write to specific file paths. The ClamAV detection suggests this is a downloader, likely intended to fetch and execute a second-stage payload. The obfuscated nature of the script and the file system operations indicate malicious intent.

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
663869ec393d0a50f151da4884835577fc196722b5e56686c64f3948abebb4bb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6571 bytes

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