Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
21-03-2023 15:41
Behavioral task
behavioral1
Sample
575c1492c69a86293f944a8cc528ce78.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
575c1492c69a86293f944a8cc528ce78.exe
Resource
win10v2004-20230220-en
General
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Target
575c1492c69a86293f944a8cc528ce78.exe
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Size
36KB
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MD5
575c1492c69a86293f944a8cc528ce78
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SHA1
656d2ea8cd84cf5a867c1ca0561bc9625710d3ac
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SHA256
8f7070b244f6d3559a7e5d4bb8682ec5bca8aacd37104c827d1897c3f6cd0650
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SHA512
8d8cd00a2f994c2442297a57f27218281a3e80a3d33730e554d73c7321321436149a580da696fa2991c6328782cc0c953935f9f96766c76bb2288ec654a53dc3
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SSDEEP
768:VOgJlLJfcPCojPysIorM+rMRa8NuH0qt:VOgJlLJUJjP2z+gRJNu0
Malware Config
Extracted
njrat
im523
cheat
2.tcp.eu.ngrok.io:17504
b05dabd0487f13e40a479ae7210235a7
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reg_key
b05dabd0487f13e40a479ae7210235a7
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splitter
|'|'|
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
575c1492c69a86293f944a8cc528ce78.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation 575c1492c69a86293f944a8cc528ce78.exe -
Drops startup file 2 IoCs
Processes:
GestLoader.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b05dabd0487f13e40a479ae7210235a7.exe GestLoader.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b05dabd0487f13e40a479ae7210235a7.exe GestLoader.exe -
Executes dropped EXE 1 IoCs
Processes:
GestLoader.exepid process 640 GestLoader.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
GestLoader.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b05dabd0487f13e40a479ae7210235a7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GestLoader.exe\" .." GestLoader.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b05dabd0487f13e40a479ae7210235a7 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\GestLoader.exe\" .." GestLoader.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Drops autorun.inf file 1 TTPs 3 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
Processes:
GestLoader.exedescription ioc process File created C:\autorun.inf GestLoader.exe File opened for modification C:\autorun.inf GestLoader.exe File created D:\autorun.inf GestLoader.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
GestLoader.exepid process 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe 640 GestLoader.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
GestLoader.exepid process 640 GestLoader.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
GestLoader.exedescription pid process Token: SeDebugPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe Token: 33 640 GestLoader.exe Token: SeIncBasePriorityPrivilege 640 GestLoader.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
575c1492c69a86293f944a8cc528ce78.exeGestLoader.exedescription pid process target process PID 1988 wrote to memory of 640 1988 575c1492c69a86293f944a8cc528ce78.exe GestLoader.exe PID 1988 wrote to memory of 640 1988 575c1492c69a86293f944a8cc528ce78.exe GestLoader.exe PID 1988 wrote to memory of 640 1988 575c1492c69a86293f944a8cc528ce78.exe GestLoader.exe PID 640 wrote to memory of 1876 640 GestLoader.exe netsh.exe PID 640 wrote to memory of 1876 640 GestLoader.exe netsh.exe PID 640 wrote to memory of 1876 640 GestLoader.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\575c1492c69a86293f944a8cc528ce78.exe"C:\Users\Admin\AppData\Local\Temp\575c1492c69a86293f944a8cc528ce78.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\GestLoader.exe"C:\Users\Admin\AppData\Local\Temp\GestLoader.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- 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\GestLoader.exe" "GestLoader.exe" ENABLE3⤵
- Modifies Windows Firewall
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\GestLoader.exeFilesize
36KB
MD5575c1492c69a86293f944a8cc528ce78
SHA1656d2ea8cd84cf5a867c1ca0561bc9625710d3ac
SHA2568f7070b244f6d3559a7e5d4bb8682ec5bca8aacd37104c827d1897c3f6cd0650
SHA5128d8cd00a2f994c2442297a57f27218281a3e80a3d33730e554d73c7321321436149a580da696fa2991c6328782cc0c953935f9f96766c76bb2288ec654a53dc3
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C:\Users\Admin\AppData\Local\Temp\GestLoader.exeFilesize
36KB
MD5575c1492c69a86293f944a8cc528ce78
SHA1656d2ea8cd84cf5a867c1ca0561bc9625710d3ac
SHA2568f7070b244f6d3559a7e5d4bb8682ec5bca8aacd37104c827d1897c3f6cd0650
SHA5128d8cd00a2f994c2442297a57f27218281a3e80a3d33730e554d73c7321321436149a580da696fa2991c6328782cc0c953935f9f96766c76bb2288ec654a53dc3
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C:\Users\Admin\AppData\Local\Temp\GestLoader.exeFilesize
36KB
MD5575c1492c69a86293f944a8cc528ce78
SHA1656d2ea8cd84cf5a867c1ca0561bc9625710d3ac
SHA2568f7070b244f6d3559a7e5d4bb8682ec5bca8aacd37104c827d1897c3f6cd0650
SHA5128d8cd00a2f994c2442297a57f27218281a3e80a3d33730e554d73c7321321436149a580da696fa2991c6328782cc0c953935f9f96766c76bb2288ec654a53dc3
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memory/640-143-0x0000000000C80000-0x0000000000C90000-memory.dmpFilesize
64KB
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memory/640-149-0x0000000000C80000-0x0000000000C90000-memory.dmpFilesize
64KB
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memory/1988-133-0x00000000013E0000-0x00000000013F0000-memory.dmpFilesize
64KB