Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 f68943cea5e50cde…

MALICIOUS

Office (OLE)

159.3 KB Created: 2020-09-15 20:00:00 Authoring application: Microsoft Office Word
MD5: 845d581a0ee35daa2bebeac6d1fb815c SHA-1: 2b788ac758167e1a160b37eef8c05446db1b1eaa SHA-256: f68943cea5e50cdea78b4055ca022d66f86dbcedc97596d19e0b8343386a3b53
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9761761-0', indicating it is likely an Emotet downloader. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, suggesting it's designed to execute automatically upon opening. The presence of VBA macros and the Emotet family attribution strongly suggest the document's purpose is to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9761761-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9761761-0
  • 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
417557a48927398ece814174d936d85f4c7aaebf20a71ff2b1c5a4ebd7420248		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25524 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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