Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 93a47f8cffdd7f69…

MALICIOUS

Office (OLE) / .DOC

97.6 KB Created: 2020-09-30 12:27:00 Authoring application: Microsoft Office Word
MD5: f39b9d872d9c988b01ab7ec0c91f17f9 SHA-1: 5884db4a94c4fb6e81481435566b25191ab578c1 SHA-256: 93a47f8cffdd7f69d020813a390ffcf3bf850a5e53d398feba160f8efd2b5c43
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9769539-0', strongly indicating the Emotet family. Static analysis revealed VBA macros, including a Document_Open auto-execution macro and CreateObject calls, which are typical for Emotet's initial infection vector. These macros are designed to download and execute a second-stage payload. The obfuscated document body text does not provide further clues to the specific lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769539-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769539-0
  • 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
d4b5b261389c46067a5693243d542d8bbf2aea562c349f57759116ac8cacc554		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10541 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 28 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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