MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF document contains multiple indicators of exploitation targeting Microsoft Equation Editor, including RTF_EQUATION_EDITOR and RTF_OBJUPDATE heuristics. The presence of OLE object data and the Ole10Native stream further suggest the embedding of malicious content. This pattern is commonly used to achieve arbitrary code execution, likely for downloading and executing a secondary payload.
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_off00001428.bin1b0e8aa4924fa5b5d6af72ec6a95493b49fce2524edfd768ce936ac34d973501 |
rtf-objdata-decoded | RTF \objdata at offset 0x1428 | 4164 bytes |
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