Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ca9bcee491d6c3d2…

MALICIOUS

Office (OLE) / .DOCX

190.3 KB Created: 2020-09-21 14:08:00 Authoring application: Microsoft Office Word
MD5: 78e951b51c637a71647ee7d013a11961 SHA-1: d91da1795adbbd49af332f47ec73b077242179e6 SHA-256: ca9bcee491d6c3d28b4dd44993516cdedf46cb56d650e41e6d2f7ab8c0e4505b
280 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9765432-0'. Static analysis detected VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates the macro is designed to execute automatically when the document is opened, a common technique for Emotet to download and execute further stages. The presence of VBA macros and the specific ClamAV signature strongly suggest an Emotet infection.

Heuristics 8

  • ClamAV: Doc.Malware.Emotet-9765432-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9765432-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5f8ddf3f75befd9059f3326eb9e354f14c2179c2257f61708817109610baf98e
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19074 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.