Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
26-11-2020 03:59
Static task
static1
Behavioral task
behavioral1
Sample
XbBhbN00.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
XbBhbN00.exe
Resource
win10v20201028
General
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Target
XbBhbN00.exe
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Size
23KB
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MD5
037073f4657e7e473b426c45d705d241
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SHA1
8456fbe243bccbb49fe0a439e408a8d0a38f06aa
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SHA256
b5b78583e407d9c540c726147375c5e7f782196e7b0f96db5e5009081180f9ca
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SHA512
f857b7fb5101fb3f978291932f258d5a8b30f4fd00faa5c496369458278b4c53d7360adbe1e0a0ef33cd04d5c7325eb1a9b07c37896959d587e9d99f768a5e96
Malware Config
Extracted
njrat
0.7d
HacKed
103.231.222.39:6002
a73a0b3b1068cf8f0971852e1357f99f
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reg_key
a73a0b3b1068cf8f0971852e1357f99f
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splitter
|'|'|
Signatures
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Executes dropped EXE 1 IoCs
Processes:
1.exepid process 1520 1.exe -
Modifies Windows Firewall 1 TTPs
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Drops startup file 2 IoCs
Processes:
1.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a73a0b3b1068cf8f0971852e1357f99f.exe 1.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a73a0b3b1068cf8f0971852e1357f99f.exe 1.exe -
Loads dropped DLL 1 IoCs
Processes:
XbBhbN00.exepid process 1772 XbBhbN00.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\a73a0b3b1068cf8f0971852e1357f99f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1.exe\" .." 1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a73a0b3b1068cf8f0971852e1357f99f = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\1.exe\" .." 1.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 31 IoCs
Processes:
1.exedescription pid process Token: SeDebugPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe Token: 33 1520 1.exe Token: SeIncBasePriorityPrivilege 1520 1.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
XbBhbN00.exe1.exedescription pid process target process PID 1772 wrote to memory of 1520 1772 XbBhbN00.exe 1.exe PID 1772 wrote to memory of 1520 1772 XbBhbN00.exe 1.exe PID 1772 wrote to memory of 1520 1772 XbBhbN00.exe 1.exe PID 1772 wrote to memory of 1520 1772 XbBhbN00.exe 1.exe PID 1520 wrote to memory of 1668 1520 1.exe netsh.exe PID 1520 wrote to memory of 1668 1520 1.exe netsh.exe PID 1520 wrote to memory of 1668 1520 1.exe netsh.exe PID 1520 wrote to memory of 1668 1520 1.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\XbBhbN00.exe"C:\Users\Admin\AppData\Local\Temp\XbBhbN00.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1.exe"C:\Users\Admin\AppData\Local\Temp\1.exe"2⤵
- Executes dropped EXE
- Drops startup file
- 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\1.exe" "1.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\1.exeMD5
037073f4657e7e473b426c45d705d241
SHA18456fbe243bccbb49fe0a439e408a8d0a38f06aa
SHA256b5b78583e407d9c540c726147375c5e7f782196e7b0f96db5e5009081180f9ca
SHA512f857b7fb5101fb3f978291932f258d5a8b30f4fd00faa5c496369458278b4c53d7360adbe1e0a0ef33cd04d5c7325eb1a9b07c37896959d587e9d99f768a5e96
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C:\Users\Admin\AppData\Local\Temp\1.exeMD5
037073f4657e7e473b426c45d705d241
SHA18456fbe243bccbb49fe0a439e408a8d0a38f06aa
SHA256b5b78583e407d9c540c726147375c5e7f782196e7b0f96db5e5009081180f9ca
SHA512f857b7fb5101fb3f978291932f258d5a8b30f4fd00faa5c496369458278b4c53d7360adbe1e0a0ef33cd04d5c7325eb1a9b07c37896959d587e9d99f768a5e96
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\Users\Admin\AppData\Local\Temp\1.exeMD5
037073f4657e7e473b426c45d705d241
SHA18456fbe243bccbb49fe0a439e408a8d0a38f06aa
SHA256b5b78583e407d9c540c726147375c5e7f782196e7b0f96db5e5009081180f9ca
SHA512f857b7fb5101fb3f978291932f258d5a8b30f4fd00faa5c496369458278b4c53d7360adbe1e0a0ef33cd04d5c7325eb1a9b07c37896959d587e9d99f768a5e96
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memory/1520-1-0x0000000000000000-mapping.dmp
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memory/1668-4-0x0000000000000000-mapping.dmp