Analysis
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max time kernel
150s -
max time network
177s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
15-06-2022 01:29
Static task
static1
Behavioral task
behavioral1
Sample
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe
Resource
win7-20220414-en
General
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Target
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe
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Size
696KB
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MD5
2fa9b17ba7c0ea2a3753bf750f5504f1
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SHA1
8a7402be4a985ba5d6ef8aa0b1d72e6fa2d1e0fa
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SHA256
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440
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SHA512
ef58948e48e9a46bfc2fcb2ceb925ee2762ecdea2fe1ef874aa251707bf81ade296dc07a00c2e688eb2727680bfa2a03c9b481188991d66d72b3f2547cea33cd
Malware Config
Extracted
limerat
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aes_key
nulled
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antivm
true
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c2_url
https://pastebin.com/raw/cXuQ0V20
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delay
33
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download_payload
false
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install
false
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install_name
Winservices.exe
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main_folder
AppData
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pin_spread
false
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sub_folder
\Services\
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usb_spread
true
Signatures
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Processes:
resource yara_rule behavioral1/memory/2024-63-0x0000000000CF0000-0x0000000000E77000-memory.dmp upx -
Drops startup file 1 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BcastDVRBroker.url 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum RegAsm.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 RegAsm.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule behavioral1/memory/2024-63-0x0000000000CF0000-0x0000000000E77000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exedescription pid process target process PID 2024 set thread context of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe -
Processes:
RegAsm.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474 RegAsm.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 1268 RegAsm.exe Token: SeDebugPrivilege 1268 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exepid process 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exepid process 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exedescription pid process target process PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 2024 wrote to memory of 1268 2024 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe"C:\Users\Admin\AppData\Local\Temp\2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Maps connected drives based on registry
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
PID:1268
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