Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 e5dd7fed0fbcf976…

MALICIOUS

Office (OLE) / .DOCX

214.5 KB Created: 2020-10-27 05:52:00 Authoring application: Microsoft Office Word
MD5: a7affc363f7415b9fd07676645fd80b7 SHA-1: b526987998d1fdee8ee5d91c870b8765d7bc667b SHA-256: e5dd7fed0fbcf976ea76c910eee78339656cc5393df448efb5996f77ade132a1
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV heuristic identifies this file as 'Doc.Downloader.Emotet-9784225-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of a VBA macro that executes automatically upon opening the document ('Document_Open' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC'). This macro is designed to download and execute a secondary payload, a common Emotet delivery technique. The obfuscated document body text does not provide further context on the lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
876efd50e919d9082c47104a676f266739e3ebd392e529f593b7ea04deb8a95e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16361 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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