Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7fc7c6555659146d…

MALICIOUS

Office (OLE) / .DOCX

159.6 KB Created: 2020-12-28 20:57:00 Authoring application: Microsoft Office Word
MD5: 22569b2c4842375c2041927c9d14c2e5 SHA-1: d3bbcca7acdd3cedb173b5d1b2a6b6d499251c37 SHA-256: 7fc7c6555659146db226f7cf046df0b8dde431471f31038a688d0323a798a522
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document with VBA macros, specifically triggering a Document_Open macro. This macro uses CreateObject to likely download and execute a second-stage payload, as indicated by the ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0'. The obfuscated script attempts to read from local file paths, suggesting it's part of a larger infection chain.

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
fc28b021e7c13690bd05b8fda29444b887d0bad8d106819ca318299d8abb8857		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6085 bytes

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