Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 5fa341acdfa78ade…

MALICIOUS

Office (OLE)

138.3 KB Created: 2020-10-15 11:05:00 Authoring application: Microsoft Office Word
MD5: 3f4744e6b33700d001a3760f1b98c56e SHA-1: fc5529bd4f6bc787057fedc08d4eab0ea2488325 SHA-256: 5fa341acdfa78adefb661814663a98553952c85b14816424d3a80ed762209ca6
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file contains VBA macros, including a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9778182-0'. The VBA script, though obfuscated, uses CreateObject, a common technique for downloading and executing second-stage payloads.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
667d1f77cb408aaf823307ab93a2ae09bd6e06443d8c9883c654cd93c2502ebe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11222 bytes

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