Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 01b34285a4ef8dba…

MALICIOUS

Office (OLE) / .DOC

259.8 KB
MD5: 8bfbba9fbb71e58f31ac8fa7c1558e50 SHA-1: ca62db6f2a4b2d6934651d9a892f66077e4e9971 SHA-256: 01b34285a4ef8dbaf2c4e4215254a207e56ae796828012b69979446068f4cf72
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a malicious Office document containing VBA macros, specifically a Document_Open auto-execution macro. Heuristics indicate the use of CreateObject and p-code execution, typical for obfuscated macro malware. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family, known for its downloader capabilities. The VBA script itself is heavily obfuscated but its structure and the presence of auto-execution routines point towards it downloading and executing 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
b6798bb5311b4f2b692b304112e80c31df30b22e53307915d8ecb36c818b404c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18585 bytes