Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6c775f2e53176b77…

MALICIOUS

Office (OLE) / .DOCX

146.7 KB Created: 2020-09-30 13:54:00 Authoring application: Microsoft Office Word
MD5: ef9927a3958f4a5c19590a2e21e77ac7 SHA-1: 089161afaff52e979db8d02ccd288122e0aef293 SHA-256: 6c775f2e53176b776bb73bfd6c6a98f652a94ae4fb0b74b29f56aff911c3de0a
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, including a Document_open auto-execution macro, which is a common Emotet infection vector. The VBA code utilizes CreateObject and appears to be obfuscated, suggesting it's designed to download and execute a secondary payload. ClamAV detection further confirms its malicious nature as Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769801-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769801-1
  • 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
b0a96d5f70fa37f74dd6926b04c01f24a02f2a82bef41b3183b9207cf3a20fca
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10253 bytes