Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 04671d3779b85852…

MALICIOUS

Office (OLE)

136.7 KB Created: 2020-10-15 11:05:00 Authoring application: Microsoft Office Word
MD5: ad7e28896eaaadd114fa47e7820387fe SHA-1: a40bdfba84b293bb5aa2bf016bf32ebb97ff7053 SHA-256: 04671d3779b85852227a1748830fdb0931a27745a604ffbe5e38a89611969223
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is a malicious Microsoft Office document containing VBA macros. The 'Document_Open' macro is configured to execute automatically upon opening, and it utilizes the 'CreateObject' function, a common technique for downloading and executing secondary payloads. ClamAV detection specifically identifies it as 'Doc.Downloader.Emotet-9778182-0', strongly suggesting the Emotet family.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
667d1f77cb408aaf823307ab93a2ae09bd6e06443d8c9883c654cd93c2502ebe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11222 bytes

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