Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 cf78bd053798c5cc…

MALICIOUS

Office (OLE) / .DOCX

192.4 KB Created: 2020-12-21 21:21:00 Authoring application: Microsoft Office Word
MD5: 3ef3b007485d4bd89f5e3b1e82166608 SHA-1: 93c59e18afb8c5eddf70c58ec51d2f9d8c939276 SHA-256: cf78bd053798c5ccde8a0b8e7e4c8f4c1dd2462f0ed44e420c482e3a216543ec
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution via Document_Open and CreateObject calls, strongly indicate malicious intent. The presence of VBA macros suggests the document is designed to execute code, likely to download and execute a second-stage payload. The file's SHA256 hash is also included as an IOC.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
8aae0e70694468f75c3b71f11fefc9e062894c6e53b1f2a4dd3530766c509e7d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10278 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.