Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 cd6effccd73ee576…

MALICIOUS

Office (OLE) / .DOC

169.3 KB Created: 2020-10-20 06:24:00 Authoring application: Microsoft Office Word
MD5: 0c8c57c041e626bea592cf9f47847e92 SHA-1: 22d982e5b85f55b1dc58466f01b54e616496d80c SHA-256: cd6effccd73ee5765f93e411bf199b60d77d456b1d73a6a5dfe6de97c38481e6
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9780995-0. Static analysis revealed the presence of VBA macros, specifically a Document_Open auto-execution macro. This macro utilizes CreateObject, indicating it's designed to perform actions such as downloading and executing a second-stage payload. The high heuristic scores for VBA execution and the specific detection signature strongly suggest Emotet family activity.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780995-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780995-0
  • 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
9c144e4934aa06f4a846d3460cf32982827c1cabf227410ae75b7d2e86969ea7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17539 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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