Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13-09-2024 02:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe
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Size
74KB
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MD5
70a4e5be454dd1f92378423d77e986e3
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SHA1
4f766f124ef96fb29bef726dff67c333b5d13301
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SHA256
6f7ab771aea0d04e957ea309209803ff156ef6d3585da9b26743b22368471735
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SHA512
c08c7c4f02ed9750243243228bce4d05bd4c8568cc47e0cfefa10416401a070ec1b4bcb0ef3dfee8d92543050965f312536d84527663e7d059264fd75aae2a7f
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SSDEEP
768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zh:9Uj+AIMOtEvwDpjLizbR9Xwzh
Malware Config
Signatures
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation misid.exe -
Executes dropped EXE 1 IoCs
pid Process 1128 misid.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 2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4928 wrote to memory of 1128 4928 2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe 85 PID 4928 wrote to memory of 1128 4928 2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe 85 PID 4928 wrote to memory of 1128 4928 2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-13_70a4e5be454dd1f92378423d77e986e3_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1128
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD5824f16daae37b7b08471ff644916bd1b
SHA1e90a7c708790026b9081a81d93eb0cdfe4c72dd0
SHA256dea6bc7e8e140ca23f65f1cc7d7a049d5c67fa5e4cd82e3b1369af27d3b50d11
SHA5122b456da9b180d386bbc9d32e85641f853848fca22a72d76dc755a35cb57b4202168700a33ea02156be2f72635f8c45d2a264b931ef356957f71c9da1a991ed84
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Filesize
315B
MD5a34ac19f4afae63adc5d2f7bc970c07f
SHA1a82190fc530c265aa40a045c21770d967f4767b8
SHA256d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3
SHA51242e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765