Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5c2800e73f66d8ff…

MALICIOUS

Office (OLE) / .DOCX

157.2 KB Created: 2020-10-20 04:30:00 Authoring application: Microsoft Office Word
MD5: 29d94e94f89d09e69e75f56c77a763b3 SHA-1: 80a56053cf8e1c60866ae274f67e8d76db214edb SHA-256: 5c2800e73f66d8ffd5060d01074dd76a5f63dfd7ef6bd2c73b63bccb6fddf9bf
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9780400-0', strongly suggesting Emotet family involvement. The macro likely uses CreateObject to download and execute a secondary payload, as indicated by the heuristics.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
bec182db065394791f950a49edfb2bfa66cb6693b62758841681c782964c8b6d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15615 bytes

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