MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The RTF file contains OLE object data and specifically triggers heuristics related to the Equation Editor vulnerability (RTF_EQUATION_EDITOR) and object activation (\\objupdate). This indicates the file is designed to exploit a known vulnerability to execute code. The presence of OLE object data suggests it's a dropper or exploit container, likely leading to a second-stage payload, though no specific script or URL was extracted to confirm the exact payload 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_off000000a6.bin2b44758f863a267810a906ee46e7fcb675e9795b68bd937a821fd6ad872ac495 |
rtf-objdata-decoded | RTF \objdata at offset 0xA6 | 1815 bytes |
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