MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1204 User Execution
T1059 Command and Scripting Interpreter
The sample is an RTF document that leverages the Equation Editor vulnerability (CVE-2017-11882) to execute arbitrary code. The presence of OLE object data and the ".objupdate" directive strongly indicate that the document is designed to trigger an exploit. This exploit likely leads to the download and execution of a secondary payload, a common technique for initial access.
Heuristics 3
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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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\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_off00001118.bind99d081844d57f1a2879b2d75376566545afafc9928d0fd4389c2f5f34bd8f36 |
rtf-objdata-decoded | RTF \objdata at offset 0x1118 | 66996 bytes |
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