Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 346dbc5c545a8aa1…

MALICIOUS

Office (OLE) / .DOCX

168.3 KB Created: 2020-09-14 11:57:00 Authoring application: Microsoft Office Word
MD5: 424d6c2a187965981f0be03663a68841 SHA-1: 12fa4a32f6d21636004f54cec9ad564bde428c39 SHA-256: 346dbc5c545a8aa10d846ccb8ba758c8dd8a42aa1b64b46d835109529d0ee51b
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, indicate malicious intent. The extracted VBA script contains obfuscated PowerShell commands, including the reconstruction of a command to download and execute a script from 'http://185.173.139.174/a.ps1'. This strongly suggests the document is a dropper for further malware.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9762269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762269-0
  • 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
8a39fc8d6eec119bccb9074c742cbab236c89f429d1a306c2818d1568d873603
vba-macro oletools.olevba.extract_macros (decoded VBA source) 25223 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.