MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1204 User Execution
T1204.002 Malicious File
T1059 Command and Scripting Interpreter
T1059.005 Visual Basic
The RTF document contains an embedded OLE object with a split Equation Editor ProgID, indicating an attempt to exploit CVE-2017-11882. The 'SE_ENABLE_LURE' heuristic confirms the presence of a message instructing the user to enable editing, a common social engineering tactic. The embedded OLE object and the lure strongly suggest the document is designed to execute a secondary payload upon user interaction.
Heuristics 5
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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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Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
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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_off00005475.binae6c284be2f6a98ddb209eab47252db76854be72b8e2054e18d710ab40d090bc |
rtf-objdata-decoded | RTF \objdata at offset 0x5475 | 1775 bytes |
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