Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 5b89d6fb300bb51b…

MALICIOUS

Office (OLE) / .DOC

197.3 KB Created: 2020-09-24 13:34:00 Authoring application: Microsoft Office Word
MD5: 058a1ce322468c5507a1fcd100d6a53e SHA-1: d1f9bbf4188cd4fa72fd0dd57f5a22abd2b21fc6 SHA-256: 5b89d6fb300bb51b76a679c924d743978256ae4f3dacb8b4d6395b632ef3d951
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a high-severity OLE_VBA_MACROS heuristic and a critical ClamAV detection for 'Doc.Downloader.EmotetRed02224-9938637-0', strongly indicating Emotet. The VBA macro is obfuscated but appears to execute PowerShell commands, a common technique for downloading and executing further malicious content. The presence of a Document_Open macro and CreateObject calls further supports this malicious behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
a837a74c15cb3b2b06d70805c30f06a3d350fde6faccbab7be73edc42a69bb80		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25402 bytes

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