Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 85eec8889da0b83e…

MALICIOUS

Office (OLE)

182.9 KB Created: 2020-09-15 11:33:00 Authoring application: Microsoft Office Word
MD5: 0a06297c3e28ca619e99fc9aa0ef0cc1 SHA-1: 9a6563d72a6464b2337c2c8ce5dfced61e70d9f0 SHA-256: 85eec8889da0b83e50b944ec5aa43ffaaebd8d6e5b144af41e658879d4d9c265
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that is auto-executed. Heuristics indicate the use of CreateObject and p-code execution, consistent with macro-based malware. The ClamAV detection explicitly names this as 'Doc.Dropper.EmotetWinMob0920-9636503-0', strongly suggesting Emotet family and a dropper functionality. The macro likely downloads and executes a secondary payload.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetWinMob0920-9636503-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetWinMob0920-9636503-0
  • 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
1b0a2e6dc108ed4842c981ae863863f03d8f9f4fda298d5feed7a2d71f08ba81		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 22489 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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