Analysis
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max time kernel
130s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
02/07/2025, 19:24
Behavioral task
behavioral1
Sample
rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe
Resource
win10v2004-20250502-en
General
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Target
rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe
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Size
416KB
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MD5
79875579217d38930dfe270fd7e14df1
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SHA1
64138d4d9e4e6615ae74083e14726bcd90e88ff9
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SHA256
3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27
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SHA512
e52c0a297a36d11af497c1531427b8674c7f3de67cf277855e3685e5e5a28febb7effa68864b521b324c32b4fa253a394c1e05f7893847e4c7167d94fac6ccc3
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SSDEEP
6144:ZPUIrO0NCh31Alxujw54YsnLiO1ptnvT0lAkuW8GUi/83FrPKoTIf504AO4n2/jd:ZPUIrO0NChSlMw4vn7T0lAnW8BKhj
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3951986358-4006919840-1009690842-1000\Control Panel\International\Geo\Nation rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe -
Executes dropped EXE 4 IoCs
pid Process 1292 nudwee.exe 6072 nudwee.exe 4692 nudwee.exe 1752 nudwee.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\Tasks\nudwee.job rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language nudwee.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2364 rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2364 wrote to memory of 1292 2364 rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe 84 PID 2364 wrote to memory of 1292 2364 rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe 84 PID 2364 wrote to memory of 1292 2364 rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe"C:\Users\Admin\AppData\Local\Temp\rl_3633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exe"C:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1292
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C:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exeC:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exe1⤵
- Executes dropped EXE
PID:6072
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C:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exeC:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exe1⤵
- Executes dropped EXE
PID:4692
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C:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exeC:\Users\Admin\AppData\Local\Temp\fd7d287510\nudwee.exe1⤵
- Executes dropped EXE
PID:1752
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
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Filesize
416KB
MD579875579217d38930dfe270fd7e14df1
SHA164138d4d9e4e6615ae74083e14726bcd90e88ff9
SHA2563633b51985b6b9175755b0caad89fbcfd81aef6914aeb327ce2dedfb1f1c8b27
SHA512e52c0a297a36d11af497c1531427b8674c7f3de67cf277855e3685e5e5a28febb7effa68864b521b324c32b4fa253a394c1e05f7893847e4c7167d94fac6ccc3