MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF document contains OLE objects that are configured to activate automatically upon opening, indicated by the RTF_OBJUPDATE and RTF_OLE10NATIVE_STREAM heuristics. This mechanism is commonly used to execute embedded malicious code, suggesting the file is designed to exploit this behavior for initial execution. The specific OLE object data, objdata_00_off00000a04.bin, is the primary artifact of interest.
Heuristics 3
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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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\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_off00000a04.bin299cff9a13c56f0a0cd64fbca425a5a96dd965fd00afe3f9fe907c040a723eea |
rtf-objdata-decoded | RTF \objdata at offset 0xA04 | 3643 bytes |
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