Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0fecfde61b7f7f35…

MALICIOUS

Office (OLE) / .DOCX

150.2 KB Created: 2020-09-29 07:27:00 Authoring application: Microsoft Office Word
MD5: 0dfaa1756885ac680d70b60ced0a01dc SHA-1: 542556b71038b576fce8fa0d740c42d8929e069e SHA-256: 0fecfde61b7f7f3534c0bc1768d898beeef96c53f2ff2aea67835319b4c5fe91
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet'. The macros likely use CreateObject to download and execute a secondary payload, a typical behavior for this family. The obfuscated document body text and script content further support this analysis.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769096-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769096-0
  • 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
7fe684c304685628252d7c0111d3e33f34436ae7810b3dde5f2aa07edc7bb621		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8166 bytes

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