Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6889f33b1437ea66…

MALICIOUS

Office (OLE) / .DOC

172.6 KB Created: 2020-09-16 17:53:00 Authoring application: Microsoft Office Word
MD5: 3b2bd2d0b4cae80976046858a6d90e2d SHA-1: 25165c2cdf9a57091fbb4c9127d4e9729bb4452a SHA-256: 6889f33b1437ea66f46fc2db1cd918f05afd96fd9e8eae379cd8e2ab088cd1ca
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9762403-0', indicating it's an Emotet downloader. The presence of a Document_Open macro and CreateObject calls strongly suggests the execution of VBA code upon opening the document. This macro is designed to download and execute a secondary payload, a common tactic for Emotet.

Heuristics 6

  • 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.
  • 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

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