Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 50ae3cdd4ba912f6…

MALICIOUS

Office (OLE) / .DOCX

151.6 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word
MD5: 90cd5d3e73b2df0755f9fc18684cdae1 SHA-1: 85ac3c7e2dd8f3b091189801b0338faa85860166 SHA-256: 50ae3cdd4ba912f6c0f1e403ae2abb1db259947cecfe1bab2e579dccdb50b23f
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a macros.bas file further supports this. The Emotet family is known for using such techniques to download and execute further stages of malware. The document body appears to be obfuscated or corrupted, providing no direct user-facing lure.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
  • 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
edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10406 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.