MALICIOUS
262
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The file is an RTF document that contains embedded OLE object data, specifically identified as an Equation Editor exploit. This strongly suggests exploitation of the CVE-2017-11882 vulnerability, which allows for arbitrary code execution. The document body content appears benign, but the critical heuristics point to a malicious exploit rather than legitimate content.
Heuristics 7
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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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Equation Editor object class critical RTF_OBJCLASS_EQUATIONObject class 'equation.3' references Equation Editor
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ClamAV: Doc.Exploit.Cve_2017_11882-7570663-1 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Exploit.Cve_2017_11882-7570663-1
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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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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.microsoft.com/office/word/2003/wordml
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000118.bin4a6084b8db35bdfc44984eb7da4d5252b9ea47c5e92c9bc040b892f0a3e5ef0d |
rtf-objdata-decoded | RTF \objdata at offset 0x118 | 2768 bytes |
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