MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is an RTF document containing embedded OLE objects, specifically triggering heuristics related to Equation Editor vulnerabilities (RTF_EQUATION_EDITOR) and OLE object activation ( RTF_OBJUPDATE, RTF_OLE10NATIVE_STREAM). This strongly suggests exploitation of a known vulnerability in the Equation Editor component to achieve arbitrary code execution. The embedded OLE object data likely contains a malicious payload designed to be downloaded and executed.
Heuristics 4
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Ole10Native stream in RTF OLE object high RTF_OLE10NATIVE_STREAMRTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
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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 2 \objdata section(s) — embedded OLE objects
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001c52.bin695b43321d5c3b57397c5d116d7d14dd42419e898219655f142ef541a1b0b556 |
rtf-objdata-decoded | RTF \objdata at offset 0x1C52 | 4827 bytes |
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