MALICIOUS
200
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF file contains an embedded OLE object that leverages the Equation Editor, a known vector for exploiting CVE-2018-0802. The critical heuristic firings strongly indicate this exploit is present and intended for activation via \objupdate. ClamAV detection further confirms its malicious nature as Rtf.Exploit.CVE_2018_0802-6825822-0. The file likely serves as a dropper for a secondary payload.
Heuristics 5
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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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ClamAV: Rtf.Exploit.CVE_2018_0802-6825822-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Rtf.Exploit.CVE_2018_0802-6825822-0
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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 1 \objdata section(s) — embedded OLE objects
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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off0000005f.binaff478dc8464f86b4c9d66f7aee1b842823f3955e8bc1a8060c942f2b74d979f |
rtf-objdata-decoded | RTF \objdata at offset 0x5F | 4665 bytes |
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