Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 053dea5bd693e7b7…

MALICIOUS

Office (OLE)

137.4 KB Created: 2020-10-15 11:05:00 Authoring application: Microsoft Office Word
MD5: 471959e5d991ab7e6ec5feb745156a8d SHA-1: e7f66903d1d35c3a9d8fe16e20c30609687e1c04 SHA-256: 053dea5bd693e7b747cfbd328462df32d620f245d436caa870699c448c47000d
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 sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, a common technique for downloading and executing malicious payloads. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9778182-0', strongly suggesting the Emotet family. The obfuscated VBA code and the presence of a downloader macro indicate the primary purpose is to fetch and run additional malware.

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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