Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2024, 02:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe
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Size
44KB
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MD5
510b106581366678aa6afb0b09150adc
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SHA1
3efc7ae4a4c6954f7058fba755c466dd72f1780b
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SHA256
c8e060148d79c459bf19878fcc1affac4b277b22f8f78ac4ebad1e575ed44dd6
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SHA512
619dcebd681966417a1f609c741a121c1256a526adcc6a53a1323b6da28edcb15d2d048471c018512839b4d19a5ff1146c1d044c7e8f418194b224d240c85163
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SSDEEP
768:79inqyNR/QtOOtEvwDpjBKccJVODvcjpP:79mqyNhQMOtEvwDpjBzck6
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1700 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 2024-10-14_510b106581366678aa6afb0b09150adc_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 3820 wrote to memory of 1700 3820 2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe 86 PID 3820 wrote to memory of 1700 3820 2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe 86 PID 3820 wrote to memory of 1700 3820 2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-14_510b106581366678aa6afb0b09150adc_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3820 -
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:1700
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD5af01393bb842798aebd49625b125fb97
SHA1e75899bf25188d79b2a860ca1cdafce098432571
SHA25690519a2a5dc277b5eddddc996ff9968fe8eec85e8d98058135013b9426c525d3
SHA512ea578a08aef4ce314629197e8e45f00ea9b04d4526ffeeda8cb3c3d1483a80d42b74918bea7fcdaa9d1189a1eb7aa25a6bcb7a6abca4d02d4ae81929997decce