Analysis
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max time kernel
148s -
max time network
175s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-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
1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty
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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 behavioral2/memory/4460-130-0x0000000000270000-0x00000000003F7000-memory.dmp upx behavioral2/memory/4460-136-0x0000000000270000-0x00000000003F7000-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 2 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule behavioral2/memory/4460-130-0x0000000000270000-0x00000000003F7000-memory.dmp autoit_exe behavioral2/memory/4460-136-0x0000000000270000-0x00000000003F7000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exedescription pid process target process PID 4460 set thread context of 3328 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 3328 RegAsm.exe Token: SeDebugPrivilege 3328 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exepid process 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exepid process 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exedescription pid process target process PID 4460 wrote to memory of 3328 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 4460 wrote to memory of 3328 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 4460 wrote to memory of 3328 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 4460 wrote to memory of 3328 4460 2ba261eaeefcfbd8a6ee73e31c640ccff59e316158fcef0e0bc48ad1c04a5440.exe RegAsm.exe PID 4460 wrote to memory of 3328 4460 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:4460 -
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
- Suspicious use of AdjustPrivilegeToken
PID:3328
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