Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 057ed5706fd71541…

MALICIOUS

Office (OLE) / .DOCX

255.7 KB Created: 2020-10-29 06:41:00 Authoring application: Microsoft Office Word
MD5: 432c9dc59bf4a5035ee19fb94c5e397e SHA-1: f535ab8f3f5783ec5829ba4c7901c87326d35ace SHA-256: 057ed5706fd71541b56c5e62a9bf9d0cbcef9138b26db689f40d599ba7c16cd4
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 sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names Emotet. The macro's obfuscated nature and use of CreateObject suggest it is designed to download and execute a further stage.

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
3a8074405c54d9e6984963caa3cafcf4e8c3b540e24ba2ba0a45964d8f0aaa49
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18973 bytes