Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6519108ab0d32b86…

MALICIOUS

Office (OLE) / .DOCX

157.2 KB Created: 2021-01-12 22:19:00 Authoring application: Microsoft Office Word
MD5: ad2b9c17a7cbf1ab27811493d097e58c SHA-1: 5d9765962d27fb1f573eee20baf68297fa91d265 SHA-256: 6519108ab0d32b865e06f74784831341df7a5c7a0f02221511a5a13b8762e375
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02224-9938637-0', indicating it is a downloader. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, a common technique for executing malicious code. The VBA script, though obfuscated, appears to be designed to download and execute a secondary payload, consistent with Emotet's behavior.

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
f080f423f3af32bf8c04d24f919af2345f2f15905193e2101e5f7b51599e8466		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7512 bytes

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