Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 dc7e2135030000c1…

MALICIOUS

Office (OLE) / .DOCX

170.2 KB Created: 2020-09-16 21:06:00 Authoring application: Microsoft Office Word
MD5: dab0ad3f72909efd87ff543bd09112de SHA-1: bce80b576a3b5b68eb97661e76dc9f581f7d8cef SHA-256: dc7e2135030000c1ea2210105e8eaebc8efd26a873cf4828a4e2d84a0b81805d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample was detected by ClamAV as 'Doc.Downloader.Emotet-9762248-0', strongly indicating the Emotet family. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' auto-execution macro that utilizes 'CreateObject'. This suggests the macro is designed to download and execute a second-stage payload. The presence of the 'macros.bas' artifact further supports this analysis.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9762248-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762248-0
  • 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
399b09c8d74ca70c14382a3c60b3f313640ed0e229ce8a9c8a5d7036140d7260		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19085 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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