Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b070003872fb156…

MALICIOUS

Office (OLE) / .DOCX

176.1 KB Created: 2020-10-02 15:03:00 Authoring application: Microsoft Office Word
MD5: 9d41379d2fd3dec9f062ac71560d1a80 SHA-1: 3ff1d49c25fd06792c9e1ea429b407a2417022e6 SHA-256: 6b070003872fb1568e6cf611aa7fdf25051aa3e6b9019e079a28794fd146ed17
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with a signature indicating it's a downloader associated with Emotet. The presence of a Document_Open macro and CreateObject calls strongly suggests the execution of malicious VBA code. The script is heavily obfuscated, but its structure and the heuristic firings indicate it's designed to download and execute a second-stage payload.

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
9c73b282cef1909acf6926cc6a46e0c4c3197855b1b22198afbc8de664dfe7ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10626 bytes

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