MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.001 PowerShell
The RTF file contains OLE object data and specifically triggers critical heuristics for Equation Editor exploitation and OLE object activation. This indicates the file is designed to exploit a known vulnerability in the Equation Editor component to achieve code execution. The embedded OLE object, objdata_00_off00001c03.bin, is the likely payload carrier.
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 1 \objdata section(s) — embedded OLE objects
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001c03.bin12357647dab2a02e4f8f6c87074c8ee9c0cc755180a8c5819b6a425c7ce562ac |
rtf-objdata-decoded | RTF \objdata at offset 0x1C03 | 1674 bytes |
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