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

Static analysis result for SHA-256 6516e329e7d2f720…

MALICIOUS

Office (OLE) / .DOCX

163.3 KB Created: 2020-12-29 20:50:00 Authoring application: Microsoft Office Word
MD5: 1677c09953f01d8ec10c8b09244a2334 SHA-1: 22c762262dedc49279674725e28afc0c99be00b5 SHA-256: 6516e329e7d2f720e9cd95f5f61a9ebd0af6b0cf0f35e31e872a9eef210a2ed0
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 malware delivery. The script attempts to open and read from multiple local file paths, suggesting it may be part of a larger exploit chain or payload delivery mechanism. The ClamAV detection as 'Doc.Downloader' further supports the conclusion that this document is designed to download and execute additional malicious content.

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
e5f9549007a41fec3f244ce297cfb2983cfeb314035104f84c750e8267247398		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8311 bytes

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