Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 9889a56b2549a6ab…

MALICIOUS

Office (OLE) / .DOCX

170.9 KB Created: 2020-09-29 12:31:00 Authoring application: Microsoft Office Word
MD5: 6dc5ec84cebac86e7b5f072156a153d0 SHA-1: f3a91e0e6a4302951c79934c170ee7017c387ca1 SHA-256: 9889a56b2549a6ab93c0d57a6e066549f7d6e8cf8b0304840ecfe677678ae15d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-exec macro, which is a common delivery mechanism for Emotet. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests Emotet. The macro's execution of CreateObject and p-code auto-execution further indicates malicious intent, likely to download and execute a secondary payload.

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
78af9bfbd851f0765d951c5fd87890712e4afc03034fdc1be9f16082b41d9b12		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8150 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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