MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.001 PowerShell
The critical heuristic firing for CVE-2017_11882 indicates that the RTF document is designed to exploit a vulnerability in the Equation Editor component. The presence of OLE object data and an \objupdate directive further supports the exploitation of embedded objects. The primary goal appears to be arbitrary code execution, likely for downloading and executing a second-stage payload, though no specific script or URL was extracted to confirm this.
Heuristics 3
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CVE-2017-11882 — Equation Editor FONT record overflow critical CVE likely CVE_2017_11882Equation Editor MTEF contains an overlong FONT typeface field, the vulnerable copy primitive for CVE-2017-11882. This is stronger evidence than the Equation Editor CLSID alone because it identifies the malformed record that drives code execution in EQNEDT32.EXE.
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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_off000014f0.bin4ba64b595bb38df61bea03925208b0d626a18f8f251b3f5c932525c3465d5616 |
rtf-objdata-decoded | RTF \objdata at offset 0x14F0 | 3754 bytes |
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