Analysis
- max time kernel
91s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
16/11/2024, 04:57
General
- Target 2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnit.exe
- Size 3.5MB
- Sample241116-flayvazhpg
- SHA256 29274dfda5c7f2a3cd0c793f6128f7429fef834f142e226dc8df2d9ea184d524
Malware Config
Signatures
- Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
- Ramnit family
- Executes dropped EXE 2 IoCs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies Internet Explorer settings 1 TTPs 30 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 9 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnit.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnit.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnitSrv.exeC:\Users\Admin\AppData\Local\Temp\2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnitSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4748 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
suggestions[1].en-US
2024-11-16_db438db1484da27156855d17574b1cd0_bkransomware_ramnitSrv.exe
memory/1144-16-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1144-11-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1144-13-0x00000000005D0000-0x00000000005D1000-memory.dmp
memory/1144-15-0x0000000000400000-0x000000000042E000-memory.dmp
memory/3896-5-0x0000000000480000-0x000000000048F000-memory.dmp
memory/3896-8-0x0000000000400000-0x000000000042E000-memory.dmp
memory/3896-4-0x0000000000400000-0x000000000042E000-memory.dmp
memory/5020-18-0x00000000000D0000-0x0000000000453000-memory.dmp
memory/5020-0-0x00000000000D0000-0x0000000000453000-memory.dmp