MALICIOUS
121
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1559.002 Component Object Model
The RTF document contains embedded OLE object data, specifically targeting the Equation Editor component. The presence of RTF_EQUATION_EDITOR and RTF_OBJUPDATE heuristics indicates that the file is designed to exploit a known vulnerability in the Equation Editor to achieve arbitrary code execution upon opening. No document body text or scripts were extracted, but the heuristics strongly suggest a classic exploit delivery mechanism.
Heuristics 3
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Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITORRTF 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.
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\objupdate forces OLE activation high RTF_OBJUPDATERTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
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OLE object data medium RTF_OBJDATARTF contains 2 \objdata section(s) — embedded OLE objects
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off000000cf.bin425738620de34ac43804d64a60d62742e443e4688c555f40d23199e399ac7147 |
rtf-objdata-decoded | RTF \objdata at offset 0xCF | 2161 bytes |
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