Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 22a8c7163e3a7d8a…

MALICIOUS

Office (OLE) / .DOCX

223.8 KB Created: 2020-09-21 04:09:00 Authoring application: Microsoft Office Word
MD5: 26a77528506cd55eb3c4c2fd5d9604ce SHA-1: e0e6b24c4b4338d1da3206359d67e1dd2bde7a52 SHA-256: 22a8c7163e3a7d8a6f56f36d0f4906da36bdf4deb9a329feeb9df07343e68026
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Dropper.EmotetIOS-9402070-0', indicating it's a known Emotet dropper. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject, and p-code auto-execution. These elements strongly suggest the macro is designed to download and execute a secondary payload, a common Emotet tactic. The document body content is heavily corrupted and unreadable, providing no further clues.

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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