MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The RTF document contains embedded OLE objects, specifically triggering heuristics related to Equation Editor vulnerabilities. The presence of `RTF_EQUATION_EDITOR` and `RTF_OBJUPDATE` strongly suggests an exploit targeting Equation Editor to achieve arbitrary code execution. The `RTF_OBJDATA` heuristic indicates the presence of embedded OLE object data, which is likely the exploit payload. No document body or scripts were extracted, but the RTF structure itself is indicative of a classic exploit delivery mechanism.
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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Automatically linked OLE object high RTF_OBJAUTLINKRTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
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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
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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_off00001b80.binc61cb1f956c69106d500ba7fb7214255ea634f137da28db17d2fa4902646724a |
rtf-objdata-decoded | RTF \objdata at offset 0x1B80 | 175675 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.98, consistent with packed or encrypted content.
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