Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7894db05f1e0bf03…

MALICIOUS

Office (OLE) / .DOCX

132.2 KB Created: 2020-09-30 18:26:00 Authoring application: Microsoft Office Word
MD5: 5a6b04acf5ddfc1f2e718bdb34dfede3 SHA-1: acf74efb20ee125b44bdfff8d0bdb19a27a7da99 SHA-256: 7894db05f1e0bf0341427a40ee7bac8f5ef35bc7acac378caa332c08586b9514
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 was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9769771-0', indicating a known downloader variant of Emotet. The presence of a 'Document_Open' macro and a 'CreateObject' call strongly suggests that the VBA code is designed to execute automatically and likely download additional malicious content. The obfuscated nature of the VBA script prevents a precise analysis of its execution flow, but its purpose is inferred to be payload delivery.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769771-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769771-0
  • 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
e5aaf9f3439fc51732c94523035a3e61bc2d17c21b6cf92e4d7bbe4fa685ceb9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10171 bytes

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