Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 afd5c57ac49f2feb…

MALICIOUS

Office (OLE) / .DOC

184.4 KB Created: 2020-10-16 06:16:00 Authoring application: Microsoft Office Word
MD5: 90e04d8ea6dcb63f5450911e343701a5 SHA-1: b67bd8deb20faf2e0a4e6198af583fd2af76f8aa SHA-256: afd5c57ac49f2feb0f659a210b1253a033b09c525fc2a05c5553cecbc721fd71
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection explicitly identifies this file as Emotet. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This indicates the document is designed to run malicious code upon opening, a common Emotet delivery technique. The presence of the 'macros.bas' artifact further supports this. The document body content is heavily obfuscated and does not provide clear user-facing text, but the technical indicators strongly suggest a malicious macro execution.

Heuristics 7

  • ClamAV: Doc.Trojan.Emotet-9778443-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Emotet-9778443-1
  • 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
3aa4602d13895bbb19666b18a56108bc3ac6b1953483bc168bcdaa103153ce44		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15426 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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