← All detection heuristics · RTF
critical
RTF_MZ_HEX
What it means
MZ header (hex '4D5A') found in RTF hex data.
Why it fires
The presence of a Windows PE executable header (MZ) inside hex-encoded RTF data means an executable is embedded in the document. This is consistent with an embedded dropper payload.
Other RTF heuristics
RTF_EQUATION_EDITOR RTF_OBJCLASS_EQUATION RTF_DDEAUTO_REGSVR32_SCRIPTLET RTF_MACOS_ZSH_LOADER RTF_PACKAGE_AUTOLINK_DELIVERY RTF_OBJAUTLINK RTF_INCLUDE_REMOTE RTF_EXCESSIVE_HEX RTF_PACKAGE_OLE RTF_OBFUSCATION RTF_PHP_IRC_BOT_SOURCE RTF_OBJCLASS_PACKAGE RTF_REMOTE_TEMPLATE RTF_EXPLOIT_TEMPLATE_ARTIFACT RTF_OBJUPDATE_LOOSE_HEX_PAYLOAD RTF_OBJUPDATE RTF_PFRAGMENTS_RELATED RTF_OBJEMB RTF_WORD_COMPATIBILITY_PACKAGE RTF_OBJDATA RTF_OLEPRES_STREAM RTF_OLE10NATIVE_STREAM