Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 8881b84813170007…

MALICIOUS

Office (OLE) / .DOC

157.1 KB Created: 2020-10-19 22:56:00 Authoring application: Microsoft Office Word
MD5: dd1a622797e704fae1910699279660f1 SHA-1: a0866f77ddcb7d099549f90071a9134d09866c94 SHA-256: 8881b8481317000708a679d12601330c8df0934c908e13d6221b5959c35ba6db
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a macro-enabled Word document containing a Document_Open macro that executes VBA code. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9780400-0', strongly suggesting the Emotet family. The macro's use of CreateObject and auto-execution tokens indicates it's designed to download and run a secondary payload. The obfuscated document body content is not directly indicative of the attack pattern but the presence of VBA macros and the ClamAV signature are sufficient for this assessment.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
defd5bb76a4b1464f2d447089b39b413d478ea68783298d2f659d17282026978		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15603 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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