MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1059.001 PowerShell
The RTF document contains an embedded OLE object with specific CLSIDs indicative of the Equation Editor vulnerability (CVE-2017-11882). The \objupdate directive forces the activation of this embedded object, triggering the exploit. This technique is commonly used to achieve arbitrary code execution, typically to download and run a second-stage payload. No specific family could be identified from the available heuristics.
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_off00001fca.bin2cbb38e46223947d0c957718bf94d8544566e2a916e1a7a0d13a80ba57fa6153 |
rtf-objdata-decoded | RTF \objdata at offset 0x1FCA | 3744 bytes |
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