Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 7d9e8b9c7bb117cf…

MALICIOUS

Office (OLE) / .DOC

172.5 KB Created: 2020-09-16 17:53:00 Authoring application: Microsoft Office Word
MD5: a00c397907246110dd5e3562160f1c0c SHA-1: bf73e8a09c7315fb9942ca1ad98a2bb96d8511ed SHA-256: 7d9e8b9c7bb117cfae0bd598f5a8c592b9789284a2be2b95319af0c05789ce8f
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 and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious document. The presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, is characteristic of Emotet downloaders. The ClamAV signature further confirms this family. The document body is heavily obfuscated and unreadable, but the heuristics and signature are sufficient for attribution.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9762403-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762403-0
  • 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
8652fa84bae7aecf6dc2e590de1592dcbeadd44b5d7c078d4a40653b6bbf7777
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19075 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.