Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 08c39bc359029250…

MALICIOUS

Office (OLE) / .DOCX

155.3 KB Created: 2020-10-16 10:17:00 Authoring application: Microsoft Office Word
MD5: fb94ca578ce62439acc3a6084816f4b5 SHA-1: f0795ff3826ad6e95ea9be80218f65b9c80214a3 SHA-256: 08c39bc35902925027d9fbcb94add1228e58eb5c4b52c63564ff142b0e186970
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9778520-0', indicating it is likely an Emotet downloader. The presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject', strongly suggests the execution of obfuscated code. This code is designed to download and execute a secondary payload, a common tactic for Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778520-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778520-0
  • 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
d61826c134f7c008e59a413c892ffd79c11195763d747a6092f6a3ad25ed6af3		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15346 bytes

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