Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 074ec35c01d81a5e…

MALICIOUS

Office (OLE) / .DOC

187.8 KB Created: 2020-09-16 22:59:00 Authoring application: Microsoft Office Word
MD5: 3d948ebc3c54179fa48c0ccc6b493f0c SHA-1: 7f482d7f110062cb1eaefb1b861aeaa2e3b0d6d5 SHA-256: 074ec35c01d81a5e41e716a31b792840386f559d2be03411acfabd0a710b8362
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9762305-0', indicating a downloader variant of the Emotet family. Heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject', a common technique for executing malicious code. The VBA script, though obfuscated, is designed to execute a secondary payload, likely involving PowerShell, as suggested by the heuristic firings.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762305-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762305-0
  • 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
c74a4e0e1e8046236a4698925940d43110d502cff010754883e948c4e1efb894		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19088 bytes

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