MALICIOUS
220
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF file contains multiple high and critical severity heuristics indicating the exploitation of CVE-2017-8759 via an embedded OLE object. This exploit is known to facilitate the execution of arbitrary code, suggesting the file acts as a dropper for a secondary payload. The ClamAV detection name further supports this assessment.
Heuristics 5
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CVE-2017-8759 — MSXML SAX OLE activation critical CVE likely CVE_2017_8759RTF contains a hex-encoded OLE1 object for Msxml2.SAXXMLReader.6.0 followed by an embedded OLE compound document, and the document requests OLE activation. This matches the RTF staging shape used for CVE-2017-8759 SOAP/WSDL parser code injection.
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ClamAV: Rtf.Dropper.Agent-6889299-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Rtf.Dropper.Agent-6889299-0
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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 1 \objdata section(s) — embedded OLE objects
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00010b96.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x10B96 | 5794 bytes |
SHA-256: 31ae936866ef107132a2d3c32b1fbc8af3508e1c4ff8c491fe339ae3b8a4f800 |
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