Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 dcd26d0a6efa5d5e…

MALICIOUS

Office (OLE) / .DOCX

195.9 KB Created: 2020-09-24 13:34:00 Authoring application: Microsoft Office Word
MD5: 34d06ca7484d9fefb68e3906f55d8f73 SHA-1: c6328d06baaccde14a6913102897222a4de3b445 SHA-256: dcd26d0a6efa5d5e5d222fb2514b682c86ffb540ef7defc9f034278cc7857ada
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains a critical ClamAV detection for 'Doc.Downloader.EmotetRed02224-9938637-0', indicating it is a known Emotet downloader variant. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. The DOC BODY, though heavily obfuscated, appears to be constructing a PowerShell command. This script functionality is consistent with Emotet's typical behavior of downloading and executing further malicious 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
a837a74c15cb3b2b06d70805c30f06a3d350fde6faccbab7be73edc42a69bb80		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25402 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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