Analysis
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max time kernel
166s -
max time network
204s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 08:37
Static task
static1
Behavioral task
behavioral1
Sample
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe
Resource
win10v2004-20221111-en
General
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Target
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe
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Size
181KB
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MD5
92323da33e35ad7045645d7f149f41b3
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SHA1
e2e28cd2c871233419197876763fcdad572e3058
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SHA256
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7
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SHA512
f0f56ae2d90c7d2feb3f8faa29e3b544210da38cd9b69133ac69d7969d33c4c45be8299ec9efc22b9d60bd7584bd50b2fff2cfb086b8b69f035add91df29333b
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SSDEEP
3072:6x5hOuzuyeopCG4Ly41G9KXs3xTlcmBvQdPSIjnAFHaKH2IZ4:6xj1F4vAKsh/YdainEHaKH2IZ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Runtime Broker.exepid process 3612 Runtime Broker.exe -
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:
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe -
Drops startup file 2 IoCs
Processes:
Runtime Broker.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\90d6480e0796e5cce4867417157c2518.exe Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\90d6480e0796e5cce4867417157c2518.exe Runtime Broker.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Runtime Broker.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\90d6480e0796e5cce4867417157c2518 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Runtime Broker.exe\" .." Runtime Broker.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\90d6480e0796e5cce4867417157c2518 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Runtime Broker.exe\" .." Runtime Broker.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 27 IoCs
Processes:
Runtime Broker.exedescription pid process Token: SeDebugPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe Token: 33 3612 Runtime Broker.exe Token: SeIncBasePriorityPrivilege 3612 Runtime Broker.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exeRuntime Broker.exedescription pid process target process PID 4252 wrote to memory of 3612 4252 dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe Runtime Broker.exe PID 4252 wrote to memory of 3612 4252 dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe Runtime Broker.exe PID 4252 wrote to memory of 3612 4252 dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe Runtime Broker.exe PID 3612 wrote to memory of 3480 3612 Runtime Broker.exe netsh.exe PID 3612 wrote to memory of 3480 3612 Runtime Broker.exe netsh.exe PID 3612 wrote to memory of 3480 3612 Runtime Broker.exe netsh.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe"C:\Users\Admin\AppData\Local\Temp\dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Runtime Broker.exe"C:\Users\Admin\AppData\Local\Temp\Runtime Broker.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\Runtime Broker.exe" "Runtime Broker.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\Runtime Broker.exeFilesize
181KB
MD592323da33e35ad7045645d7f149f41b3
SHA1e2e28cd2c871233419197876763fcdad572e3058
SHA256dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7
SHA512f0f56ae2d90c7d2feb3f8faa29e3b544210da38cd9b69133ac69d7969d33c4c45be8299ec9efc22b9d60bd7584bd50b2fff2cfb086b8b69f035add91df29333b
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C:\Users\Admin\AppData\Local\Temp\Runtime Broker.exeFilesize
181KB
MD592323da33e35ad7045645d7f149f41b3
SHA1e2e28cd2c871233419197876763fcdad572e3058
SHA256dea2308dc87bbd9908b5b5d62f8bf025111e586ac13fd0e349b6fcd7c28de4d7
SHA512f0f56ae2d90c7d2feb3f8faa29e3b544210da38cd9b69133ac69d7969d33c4c45be8299ec9efc22b9d60bd7584bd50b2fff2cfb086b8b69f035add91df29333b
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memory/3480-140-0x0000000000000000-mapping.dmp
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memory/3612-134-0x0000000000000000-mapping.dmp
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memory/3612-138-0x0000000074A80000-0x0000000075031000-memory.dmpFilesize
5.7MB
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memory/3612-139-0x0000000074A80000-0x0000000075031000-memory.dmpFilesize
5.7MB
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memory/4252-132-0x0000000074A80000-0x0000000075031000-memory.dmpFilesize
5.7MB
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memory/4252-133-0x0000000074A80000-0x0000000075031000-memory.dmpFilesize
5.7MB
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memory/4252-137-0x0000000074A80000-0x0000000075031000-memory.dmpFilesize
5.7MB