MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1204 User Execution: Malicious Link
T1059.005 PowerShell
The sample is an RTF document that contains embedded OLE object data and specifically targets the Equation Editor vulnerability. The 'SE_ENABLE_LURE' heuristic indicates that the document prompts the user to enable editing, a common tactic to bypass security measures. The presence of `RTF_EQUATION_EDITOR` and `RTF_OBJUPDATE` strongly suggests an attempt to exploit a known vulnerability, likely leading to the download and execution of a secondary payload.
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_off00005613.bin585a9ea5aeacde0161b256b158c6bd73c5d20f14c3380aaf94c4093841c84763 |
rtf-objdata-decoded | RTF \objdata at offset 0x5613 | 1927 bytes |
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