Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0b8fd8d033990886…

MALICIOUS

Office (OLE) / .DOCX

162.6 KB Created: 2020-12-29 20:50:00 Authoring application: Microsoft Office Word
MD5: 48694cd16b8294af128352f2fd0bfcb8 SHA-1: 7300d37815fea858649de8e71f3fb581e5fb0ee2 SHA-256: 0b8fd8d0339908863cd208a05fff1e8d9bd4f259735a7ff845318973c3af6bc1
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 Emotet. The macro attempts to open and read multiple binary files from different paths, suggesting it is part of a downloader mechanism. The ClamAV detection also explicitly identifies it as an Emotet downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
e5f9549007a41fec3f244ce297cfb2983cfeb314035104f84c750e8267247398		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8311 bytes

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