Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 bf463026843d7b52…

MALICIOUS

Office (OLE) / .DOCX

209.0 KB Created: 2020-10-30 18:34:00 Authoring application: Microsoft Office Word
MD5: 5f55b7b57a9658c4230855ea5ac11e8f SHA-1: 3ebabd483872a7f08b5d8d518044e1d2edfd2ff8 SHA-256: bf463026843d7b5220c6bfdf0dd924062c3e0e3f3a86a77b4c13728ee3f753f9
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute code upon opening. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family and a downloader functionality. The obfuscated document body text does not provide further context on the lure, but the presence of auto-executing VBA code points to a malicious downloader.

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
035247075e717030c87eb1e7a35ad2ad2c8145cc7110257c5be024c0ffb99fb6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17340 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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