MALICIOUS
143
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The RTF file contains an embedded OLE object that leverages the Equation Editor component. The presence of RTF_EQUATION_EDITOR and RTF_OBJUPDATE heuristics strongly indicates exploitation of a known vulnerability in Equation Editor (CVE-2017-11882) for client-side execution. No specific family could be identified, and no external IOCs were extracted.
Heuristics 3
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Equation Editor CLSID critical RTF_EQUATION_EDITOREquation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
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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_off0000003c.bindb686ac38b2a2285aba01f05f4d875a30078767c970900889e0b91bf805b50c4 |
rtf-objdata-decoded | RTF \objdata at offset 0x3C | 4143 bytes |
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