Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 6783ef413f3dc640…

MALICIOUS

Office (OLE)

164.9 KB Created: 2020-09-15 19:31:00 Authoring application: Microsoft Office Word
MD5: 4e8c821a9b793121ff740415f6d9c640 SHA-1: f5bd356c904bdda8900209466c77aef5b7e1c756 SHA-256: 6783ef413f3dc640c8c9accbac37c09de5db05eee45604f5334cd90e7bbc109e
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9761754-0', strongly indicating the Emotet family. The presence of a Document_Open VBA macro that uses CreateObject to execute code confirms a common Emotet delivery mechanism. This macro is designed to download and execute a second-stage payload, a typical behavior for Emotet droppers.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9761754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9761754-0
  • 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
75714e73d3e8750b3760209a7997fccc8b6d96f31b59fa1d20ad2b0ef4583864		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25430 bytes

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