Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 6f87accac78b7534…

MALICIOUS

Office (OLE) / .DOC

172.4 KB Created: 2020-09-22 22:41:00 Authoring application: Microsoft Office Word
MD5: bcd0feebf972f2548498892bb0517ec3 SHA-1: 4ae3b49b12d18b6478f3f9c34e8af34627f1ec98 SHA-256: 6f87accac78b7534e2eb894302312c7ac761bb4e3235391aa021ba2ab73dc64b
242 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 auto-execution macro, which is a common technique for Emotet. The script attempts to construct a URL from concatenated strings, likely to download and execute a secondary payload. The ClamAV detection explicitly names Emotet, further supporting this classification.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
d7a7a6c735f5c96696aaa87436c051b7ad4b34762239608b32d32a219302890d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20647 bytes

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