Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d5791f6ad240efa0…

MALICIOUS

Office (OLE) / .DOCX

170.7 KB Created: 2021-01-05 12:07:00 Authoring application: Microsoft Office Word
MD5: 2baf9756857f91d4ccf3d4057fa3b3ba SHA-1: 677af51c62447fa561a5ae47826a94d9354ab5ac SHA-256: d5791f6ad240efa0352be66ee78df171c2a197ddcea9ad71690dddf695ca7bb5
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, strongly indicate malicious activity. The presence of a Document_Open macro suggests an attempt to immediately execute code upon opening the document. While the document body is heavily obfuscated, the overall pattern aligns with Emotet's typical behavior of downloading and executing further payloads.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
5fd199a84582bf2c4248191e49df05fe3a9d17ab4a6f639ead9a581ea6be129f
vba-macro oletools.olevba.extract_macros (decoded VBA source) 10799 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.