Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 09b8d65b64218ad5…

MALICIOUS

Office (OLE) / .DOCX

287.6 KB Created: 2020-10-29 11:27:00 Authoring application: Microsoft Office Word
MD5: b574b5961afb3c39cb436171a2a0ce49 SHA-1: 1c84dcbaba9315ff973754105fbb904babf8d182 SHA-256: 09b8d65b64218ad504489c3b2bc0e3cd74300774ddc3e908c0628f95234fc3be
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests Emotet family involvement. The macro's use of CreateObject and p-code execution indicates it's designed to download and execute a secondary payload, aligning with Emotet's typical 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
898dac0a9fbba39aaf7a14ff7100c80bc81af6e0cb0f2cf6d397c84d46877d50
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18710 bytes