Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 93d817dfd2bf4e66…

MALICIOUS

Office (OLE) / .DOCX

189.6 KB Created: 2020-09-18 14:02:00 Authoring application: Microsoft Office Word
MD5: fefe4d337a6ba871046b9e010919c0d8 SHA-1: 57a6e37f4902c7f5728612eee64641296adae750 SHA-256: 93d817dfd2bf4e664bc17daefb9bb205e54156396a0d675a88bc250194bc7d9a
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9763588-0. Static analysis reveals the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating an attempt to execute arbitrary code. This aligns with Emotet's typical behavior of downloading and executing further payloads. The document body content is heavily corrupted and unreadable, providing no further context.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9763588-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763588-0
  • 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
439e57830647c2aa4289de5e25d2759440b9e1601599acc03def2897db1f3da9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20114 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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