Malicious RTF — malware analysis report

Static analysis result for SHA-256 9d0f66ff711f8838…

MALICIOUS

RTF

61.4 KB First seen: 2026-06-28
MD5: d9a65fef30cbd26bd6f64df4bbad2b61 SHA-1: 29690592a2c36c393ba1376b1cb2336eadf70907 SHA-256: 9d0f66ff711f883882f16d2867b4a123babd0b7d3d5dcd3e0ab3aee8d747b659
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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