Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 f14c6bc62e459f57…

MALICIOUS

Office (OLE) / .DOCX

162.4 KB Created: 2020-09-14 06:44:00 Authoring application: Microsoft Office Word
MD5: 63e8c0e5c4f1b4e9316815cf913632e0 SHA-1: 3f6ccf03e14ef7fa5241ceb8dabfb39b0fa694b8 SHA-256: f14c6bc62e459f57fcbf3044108e087966c7f90e706b655248f9707410094bcc
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762310-0'. Static analysis revealed the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' for execution. This indicates the document is designed to automatically run malicious code when opened. The VBA code appears to be constructing a command to download and execute a payload, consistent with Emotet's typical behavior.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762310-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762310-0
  • 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
94aa0eae3715e5e4c777d8559a3d12a3d055d6c09f9bd5aa9415cdba60070681
vba-macro oletools.olevba.extract_macros (decoded VBA source) 25226 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.