Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 48aaf63076941ecf…

MALICIOUS

Office (OLE) / .DOC

164.8 KB Created: 2021-01-05 10:15:00 Authoring application: Microsoft Office Word
MD5: 61e020ef47f6a24e82002bce1c239792 SHA-1: 16466df4533c83b28dfbd3bd56a9c941390f12eb SHA-256: 48aaf63076941ecf24a6c4b798274aa615bc9e79ad7520408f1ff18b244e308d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document with a high-confidence detection of VBA macros, specifically a Document_Open auto-execution macro. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family. The macro's ability to create objects and execute p-code indicates it's designed to download and run a secondary payload, a common Emotet delivery technique. The obfuscated document body content does not provide further clues.

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
8c4d881ce710c5bdc93f3892d458c04d696e3b291027b95b98b9ccba700a5f56		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10716 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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