MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1204 User Execution: Malicious File
T1059.005 PowerShell
The RTF document contains an embedded OLE object with an Equation Editor ProgID, and uses an \objupdate directive to force OLE activation. The document body includes a lure instructing the user to 'Enable editing' to view the content, a common technique to bypass macro security settings. This suggests the file is designed to exploit vulnerabilities in the Equation Editor or related OLE components to execute a malicious payload upon opening.
Heuristics 4
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Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITORRTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
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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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00005b37.bin077d874852ae4565ec2b20fc3e5e3ca4368bcb6bda3274d570bd976d94c83d5b |
rtf-objdata-decoded | RTF \objdata at offset 0x5B37 | 1458 bytes |
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