Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ef809a2b364f20ed…

MALICIOUS

Office (OLE) / .DOCX

168.2 KB Created: 2020-10-20 06:24:00 Authoring application: Microsoft Office Word
MD5: a065f506c0c48f5bb9a3e056007ea1aa SHA-1: c2ce8df5ad51f87283ec29bc790bd1bfcf5c28ca SHA-256: ef809a2b364f20ed3160030bf3cf422976b5e0d27a69ecbe892664641bc9b746
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly identifies this as 'Doc.Downloader.Emotet-9780995-0', suggesting it's designed to download and execute a second-stage payload. The presence of the 'CreateObject' call further supports the dynamic execution of code.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780995-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780995-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
9c144e4934aa06f4a846d3460cf32982827c1cabf227410ae75b7d2e86969ea7
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17539 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.