Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 2c098fc9ec5e14a9…

MALICIOUS

Office (OLE) / .DOCX

163.9 KB Created: 2020-10-20 12:48:00 Authoring application: Microsoft Office Word
MD5: 4588adf8d91fea8dad16fa6fd2b65df7 SHA-1: d4934ce47f1a2f61c91367060dacfb16b9c72838 SHA-256: 2c098fc9ec5e14a94d73127218496cc9200f1d77c6799f35009b67bf45313451
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 heuristic identifies this file as Emotet, a known downloader. The presence of VBA macros, specifically a Document_Open auto-exec macro that uses CreateObject, strongly indicates malicious intent. This macro is designed to download and execute a second-stage payload, a common Emotet tactic. The heuristic 'OLE_VBA_PCODE_AUTOEXEC_EXEC' further confirms the auto-execution of VBA code with execution tokens.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780849-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780849-0
  • 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
a791bb7ba5242dbbc595d3114d3368d96d9feda91ba232c650f7097f210ce92c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17778 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.