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

Static analysis result for SHA-256 d26604fd6d17cc7a…

MALICIOUS

Office (OLE) / .DOCX

158.1 KB Created: 2020-12-29 13:14:00 Authoring application: Microsoft Office Word
MD5: 189cadecf2877d3455bee1f4eba75ddf SHA-1: 19d385b47dd514cb59af226d3dd038e4fd01eae6 SHA-256: d26604fd6d17cc7a2a1e28a27860e5ffd045bd5ead6011bbfe622a7f0e2f990c
240 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, indicate malicious intent. The presence of a VBA macro suggests the document is designed to download and execute a second-stage payload. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' further supports this, pointing towards a downloader functionality.

Heuristics 7

  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
f0a26dbda37cee5a9e56f370f4faad071837ea1fd898646f154d0f1b66a66162		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8375 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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