Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 c166cf314cb66a19…

MALICIOUS

Office (OLE) / .DOCX

224.0 KB Created: 2020-09-21 04:09:00 Authoring application: Microsoft Office Word
MD5: 585bdd7bed45a74eac8130995bc45bc6 SHA-1: 5f458690f28b010c277effa8340919e82515fc89 SHA-256: c166cf314cb66a1945dca4dfed75512f30709c4d0d8f0782f1e3519d868b9153
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 a Microsoft Office document with a high-confidence detection for VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject. ClamAV identifies this as Doc.Dropper.EmotetIOS-9402070-0. The presence of a Document_Open macro that executes automatically strongly suggests the intent to download and execute a second-stage payload, a common characteristic of Emotet droppers. The embedded URL was confirmed benign, but the primary threat lies within the macro execution.

Heuristics 8

  • ClamAV: Doc.Dropper.EmotetIOS-9402070-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetIOS-9402070-0
  • 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
5616715bcc9f37a507701fce0794395b42220e4bc894eb29a7aefa2b3d5ff263		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19230 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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