Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6e23c5c29e2cda45…

MALICIOUS

Office (OLE) / .DOC

242.8 KB Created: 2020-09-17 23:22:00 Authoring application: Microsoft Office Word
MD5: 6e72e527a51f3757d31177b24865d4bd SHA-1: 7fb7bdab4b18b880fb3704a83274b78aafe49f2c SHA-256: 6e23c5c29e2cda45b444540f63393722df2fa5cc8afe4a4b709ccc5c5792b902
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02226-9938639-0', indicating a downloader. The presence of a Document_Open macro and CreateObject calls strongly suggests the execution of VBA code. This VBA code is likely responsible for downloading and executing a secondary payload, a common tactic for Emotet. The macro's obfuscated nature and string concatenation attempts to hide its true functionality.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
  • 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
bbb069e7ba4108064d6782bf06897cd403c434c793526e3567eb29507661c241		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21939 bytes

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