MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The file is an RTF document containing an embedded OLE object, specifically targeting a vulnerability in the Equation Editor (CVE-2018-0802). This indicates an attempt to exploit a known vulnerability for initial execution. The presence of OLE object data suggests the embedded object is designed to be activated, likely leading to the download or execution of a secondary payload.
Heuristics 6
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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
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000043.bind53cb13c17a8a966b3d392dc519225e1ef4b8e0b39397a38afb5b6532fd168de |
rtf-objdata-decoded | RTF \objdata at offset 0x43 | 186438 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.99, consistent with packed or encrypted content.
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