Malicious RTF — malware analysis report

Static analysis result for SHA-256 9ee4b3c87d194897…

MALICIOUS

RTF

61.6 KB First seen: 2026-06-22
MD5: 561548fb82751cb572e898dca9223c9e SHA-1: 760a8547deb87fb2b33f817665d225a47a03f74d SHA-256: 9ee4b3c87d1948972163988cea1c68c4a624aca0d585ed0c1de8846b881c360d
120 Risk Score

Heuristics 3

  • Split hex Equation Editor ProgID + OLE object critical CVE likely RTF_EQUATION_EDITOR
    RTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001c29.bin rtf-objdata-decoded RTF \objdata at offset 0x1C29 2070 bytes
SHA-256: 2751fe86907b51f1cdb0319583dd0e94241cf466aad7f22a771ae733152b805f

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