Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 16b99f7444f5e97d…

MALICIOUS

Office (OLE) / .DOCX

179.5 KB Created: 2020-10-27 15:55:00 Authoring application: Microsoft Office Word
MD5: d76f7353ca403d314d1ca922d510ba59 SHA-1: 1c8868853da4805fdb592d1c1200285ddfd8d966 SHA-256: 16b99f7444f5e97d0fce8d7730fb1437f62f71827293d7d94965735f45ad9334
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 contains a VBA macro that automatically executes upon opening the document, as indicated by the Document_Open heuristic and the VBA p-code auto-execution firing. The ClamAV detection explicitly names this as Emotet, a known downloader family. The macro's obfuscated nature and the presence of CreateObject suggest it is designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
041f40187eb07e2256edf903ca2aa818eaff7dc6fcfd4bf44314c9f8902df953		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16848 bytes

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