Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d98dbac9b3444c0a…

MALICIOUS

Office (OLE) / .DOCX

178.5 KB Created: 2020-10-26 12:50:00 Authoring application: Microsoft Office Word
MD5: 2c4f9a265d4357ae6990dacecd35704b SHA-1: 5af9e09abe03dd4de164d7db38d5229cb7700751 SHA-256: d98dbac9b3444c0af4a4a5aeb4b008506c695dbdd59939d49c1ef1352e355dbd
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9784039-0. Static analysis revealed VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an auto-execution attempt. The presence of a VBA macro and the Emotet family attribution strongly suggest the document's purpose is to download and execute a second-stage payload. The embedded URL, though benign according to the reputation label, is listed as an IOC for completeness.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
f1dc9112e8c9da061a4c5323ee9b2ea6b91271f7826b740d7f08af4c09fa4698
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15863 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.