Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 61b5de9bb6347ecc…

MALICIOUS

Office (OLE) / .DOCX

161.2 KB Created: 2020-12-30 10:10:00 Authoring application: Microsoft Office Word
MD5: 94f7789f4e15c174628325b30320e4f4 SHA-1: 02be841cb6f5856557d08f166007525a8b04fe80 SHA-256: 61b5de9bb6347eccd43cffef6ac55d594b32e785232e21ef49eac3c70f3cd582
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample contains a VBA macro that is automatically executed upon opening the document. This macro utilizes CreateObject to instantiate the Scripting.FileSystemObject, which is then used to create and write to files on the local system. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family and a downloader functionality.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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.
  • 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
663869ec393d0a50f151da4884835577fc196722b5e56686c64f3948abebb4bb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6571 bytes

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