Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ff1732c0e8d9cad9…

MALICIOUS

Office (OLE) / .DOCX

179.0 KB Created: 2020-10-27 15:55:00 Authoring application: Microsoft Office Word
MD5: 867064b3934f2b8169f9fe4131e37a6c SHA-1: e328aadcad9f6d3df1b3e13a7c4ac38cb511a75b SHA-256: ff1732c0e8d9cad965e68eb30a6bf55676cb24ef098a9e18857307b8c4c1c8d6
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution via Document_Open and CreateObject calls, strongly indicate a malicious downloader. The presence of a VBA macro in macros.bas, combined with the auto-execution firing, suggests the script is designed to run automatically upon opening the document. While the document body text is heavily obfuscated, the overall evidence points to a downloader, consistent with the Emotet family.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
041f40187eb07e2256edf903ca2aa818eaff7dc6fcfd4bf44314c9f8902df953
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16848 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.