Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
21/08/2024, 04:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe
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Size
80KB
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MD5
0ad7841ac4d23c5f4dcce92850355362
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SHA1
c6e3d9c53b1968e39bbf75c0492f76351e5621b8
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SHA256
bd6d16098c56578432cc677a1be9d7db912b6b050c840fea078d689eb568e351
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SHA512
50f09c6c755b05acb71b22192a6e875eda4084b4bab2d958df0db7f3de34256915ba84c1be91cc222d871c61dcee1474dc623f107c9b139169843f014baf15e2
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktN0:X6a+SOtEvwDpjBZYvQd2j
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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation 2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3680 asih.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 2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2932 wrote to memory of 3680 2932 2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe 84 PID 2932 wrote to memory of 3680 2932 2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe 84 PID 2932 wrote to memory of 3680 2932 2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-21_0ad7841ac4d23c5f4dcce92850355362_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
80KB
MD59ecd71a2a7a237c77de7367078bd0dbf
SHA15a0d3d12d1121047cc98e86bd0c96f35e70d02d5
SHA256a86ea373c8659466192df6dde26ca7cef9269873362f3f2b1a310a691cf43e53
SHA51274ddbcbac3baa9d115f44f23c4705ec7a90a74821db9fa8a9f4b540b6f7b33ce29a4d822d3ecb3d03a6561beaeca2c469f63e60630cc0e1a5fa1ab99e36cfc67