MALICIOUS
121
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is an RTF document that contains embedded OLE objects, specifically triggering critical heuristics for Equation Editor exploitation and object updates. This indicates a likely exploit targeting the Equation Editor component to achieve code execution. The presence of ".bin [rtf-objdata-decoded] 2244 bytes" suggests that the exploit likely embeds or downloads a secondary payload. The truncated nature of the DOC BODY prevents further analysis of specific lures or content.
Heuristics 3
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Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITORRTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
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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_off000015c2.bin2a3b522f717f06413e661d2796b7238087a03f12aad00cf92b7ce5494b15af98 |
rtf-objdata-decoded | RTF \objdata at offset 0x15C2 | 2244 bytes |
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