Analysis
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max time kernel
150s -
max time network
143s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
23-12-2020 03:33
Static task
static1
Behavioral task
behavioral1
Sample
1VG2GyDy.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
1VG2GyDy.exe
Resource
win10v20201028
General
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Target
1VG2GyDy.exe
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Size
23KB
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MD5
3ec3b32cc2f8d5b71b8a697840633170
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SHA1
23bbf2d4a77abc01eb5af83e8ae120d4ae36b9fa
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SHA256
476679732c3c164813c683fb7e6f75ef6e4cb314250a4227421ce7dced010eb3
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SHA512
ad7160f26a3aec4c71572c5a77d0193810ba1f2d09b476a21c38aed4ed3a49f9737b3085fe8b5e81bd9219cfdd3e83790a44fb2b9930b97e0e3d4cd8b40d59d3
Malware Config
Extracted
njrat
0.7d
HacKed
103.45.182.184:5552
3a731f9a5537d3d4edee6a499ba30e6b
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reg_key
3a731f9a5537d3d4edee6a499ba30e6b
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
server.exepid process 2776 server.exe -
Modifies Windows Firewall 1 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
server.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\3a731f9a5537d3d4edee6a499ba30e6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\3a731f9a5537d3d4edee6a499ba30e6b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .." server.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
server.exedescription pid process Token: SeDebugPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe Token: 33 2776 server.exe Token: SeIncBasePriorityPrivilege 2776 server.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
1VG2GyDy.exeserver.exedescription pid process target process PID 1316 wrote to memory of 2776 1316 1VG2GyDy.exe server.exe PID 1316 wrote to memory of 2776 1316 1VG2GyDy.exe server.exe PID 1316 wrote to memory of 2776 1316 1VG2GyDy.exe server.exe PID 2776 wrote to memory of 1456 2776 server.exe netsh.exe PID 2776 wrote to memory of 1456 2776 server.exe netsh.exe PID 2776 wrote to memory of 1456 2776 server.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1VG2GyDy.exe"C:\Users\Admin\AppData\Local\Temp\1VG2GyDy.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\server.exe"C:\Users\Admin\AppData\Local\Temp\server.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\server.exeMD5
3ec3b32cc2f8d5b71b8a697840633170
SHA123bbf2d4a77abc01eb5af83e8ae120d4ae36b9fa
SHA256476679732c3c164813c683fb7e6f75ef6e4cb314250a4227421ce7dced010eb3
SHA512ad7160f26a3aec4c71572c5a77d0193810ba1f2d09b476a21c38aed4ed3a49f9737b3085fe8b5e81bd9219cfdd3e83790a44fb2b9930b97e0e3d4cd8b40d59d3
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C:\Users\Admin\AppData\Local\Temp\server.exeMD5
3ec3b32cc2f8d5b71b8a697840633170
SHA123bbf2d4a77abc01eb5af83e8ae120d4ae36b9fa
SHA256476679732c3c164813c683fb7e6f75ef6e4cb314250a4227421ce7dced010eb3
SHA512ad7160f26a3aec4c71572c5a77d0193810ba1f2d09b476a21c38aed4ed3a49f9737b3085fe8b5e81bd9219cfdd3e83790a44fb2b9930b97e0e3d4cd8b40d59d3
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memory/1456-5-0x0000000000000000-mapping.dmp
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memory/2776-2-0x0000000000000000-mapping.dmp