Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 8358c5d92098bb5e…

MALICIOUS

Office (OLE) / .DOC

161.9 KB Created: 2020-09-15 23:02:00 Authoring application: Microsoft Office Word
MD5: ce7d7baad892037f8f23b479e73c143b SHA-1: 7220a1d8970e85dcd0c2f0fcdb38957b1600ce59 SHA-256: 8358c5d92098bb5edb7f9d8ccbf19fe41ee756d8648590c404f4d84d23aed58a
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as 'Doc.Downloader.Emotet-9762287-0', suggesting it's a downloader for the Emotet banking trojan. The VBA script appears to be heavily obfuscated but likely attempts to download and execute a second-stage payload, potentially using PowerShell as indicated by the obfuscated string fragments.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762287-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762287-0
  • 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
2463ca5944a3498304fe918280f5b6583e6e8da36e1a3b40714097a3ead5b81e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25024 bytes

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