Analysis
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max time kernel
103s -
max time network
136s -
platform
windows10-2004_x64 -
resource
win10v2004-20250502-en -
resource tags
arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system -
submitted
29/05/2025, 11:04
Behavioral task
behavioral1
Sample
2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe
Resource
win10v2004-20250502-en
Behavioral task
behavioral2
Sample
2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe
Resource
win11-20250502-en
General
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Target
2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe
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Size
70KB
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MD5
91281c639b97d27495b73111e2efc826
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SHA1
d3ee5a4e9e89016a4401b2a6efadfc02ca777a1c
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SHA256
b5505ad9f45095842bd7da651e834f26662bc86070e2d04f307fe71fd7a0a310
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SHA512
e782ec9634632140df754835c2a857f432a161d69d3612ae40d06c1c7971fa2435c808cc7b72f3615ee4abc726e31fd5d3b4e64c48b9fb6aafbbf922adf28e7b
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SSDEEP
1536:4ZZZZZZZZZZZZpXzzzzzzzzzzzzADypczUk+lkZJngWMqqU+2bbbAV2/S2OvvdZl:3d5BJHMqqDL2/Ovvdr
Malware Config
Signatures
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GandCrab payload 3 IoCs
resource yara_rule behavioral1/memory/1436-0-0x000000000FC80000-0x000000000FC96AF4-memory.dmp family_gandcrab behavioral1/memory/1436-3-0x000000000FC80000-0x000000000FC96AF4-memory.dmp family_gandcrab behavioral1/memory/3040-4-0x000000000FC80000-0x000000000FC96AF4-memory.dmp family_gandcrab -
Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Gandcrab family
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3623617754-4043701611-775564599-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\gupgzkeexmf = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe" 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3623617754-4043701611-775564599-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\usyjebindjm = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe" 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\B: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\L: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\O: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Q: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\A: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\K: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\P: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Q: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\N: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\W: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\X: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Y: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Z: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\O: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\U: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\V: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\A: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\G: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\H: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\I: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\R: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\W: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\P: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\T: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\H: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\L: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\S: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\T: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\X: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Y: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\J: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\K: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\U: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\V: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\I: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\M: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\B: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\M: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\R: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\J: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\Z: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\G: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\N: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\E: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\S: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe File opened (read-only) \??\E: 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe -
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 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe -
Checks processor information in registry 2 TTPs 6 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1436 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 1436 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 1436 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 1436 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 3040 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 3040 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 3040 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe 3040 2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2428 wrote to memory of 3040 2428 cmd.exe 90 PID 2428 wrote to memory of 3040 2428 cmd.exe 90 PID 2428 wrote to memory of 3040 2428 cmd.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe"C:\Users\Admin\AppData\Local\Temp\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1436
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe1⤵
- Suspicious use of WriteProcessMemory
PID:2428 -
C:\Users\Admin\AppData\Local\Temp\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exeC:\Users\Admin\AppData\Local\Temp\2025-05-29_91281c639b97d27495b73111e2efc826_elex_gandcrab.exe2⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3040
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