Analysis
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max time kernel
130s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
08-10-2024 12:09
Behavioral task
behavioral1
Sample
2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe
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Size
205KB
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MD5
5ee939d3bb1f2d60e85e837e53b93da9
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SHA1
7cb8d0c7d584bac6351f92c7a3fcaf12735abfe5
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SHA256
b0d13d0bf66da1dcbee0f78e3d476fa0446dd01fbc3875ee5b8b09ec66694ab0
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SHA512
ed5391ae9e8ea6532a29bff03bba4dcfc2d855ddfedeb9678e6b5ea2cb996a00ed1d8d1998a9b29ee65b5825a00621d1c2787129856e6dacd188a13adeecadf1
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SSDEEP
3072:MgzlmnQjGjtA77nRw3u08PbvZDV/y9afXqTXnCBNcESnrbieOVAS3n/:Mi777RwChpy9afajnCBwrbTOP3/
Malware Config
Signatures
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GandCrab payload 3 IoCs
resource yara_rule behavioral1/memory/2960-1-0x0000000000110000-0x0000000000126000-memory.dmp family_gandcrab behavioral1/memory/2960-3-0x00000000000F0000-0x0000000000103000-memory.dmp family_gandcrab behavioral1/memory/2960-10-0x0000000000110000-0x0000000000126000-memory.dmp family_gandcrab -
Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\jzenigcfyoe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\rlucot.exe\"" 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\I: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\J: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\M: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\O: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\U: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\P: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\T: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\Y: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\A: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\B: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\E: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\K: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\Q: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\X: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\Z: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\G: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\H: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\L: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\N: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\R: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\S: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\V: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe File opened (read-only) \??\W: 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe -
resource yara_rule behavioral1/memory/2960-0-0x0000000001070000-0x00000000010A6000-memory.dmp upx behavioral1/memory/2960-9-0x0000000001070000-0x00000000010A6000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 1 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 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2960 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe 2960 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe 2960 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe 2960 2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-08_5ee939d3bb1f2d60e85e837e53b93da9_bkransomware.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:2960