MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The sample is an RTF document containing embedded OLE objects, specifically triggering heuristics related to Equation Editor exploitation and OLE object activation. This indicates a likely attempt to exploit a client-side vulnerability (CVE-2017-11882 is common for this pattern) to achieve code execution. The presence of OLE object data suggests the document is designed to deliver and activate a malicious payload, commonly seen in spearphishing attachments.
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_off00000827.bin9f8a813e1ea3f0e802c9bb48857ef33f5d4d5b8e7ac087999a9494c789de08ac |
rtf-objdata-decoded | RTF \objdata at offset 0x827 | 3754 bytes |
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