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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
09/09/2024, 22:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe
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Size
80KB
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MD5
b146c1d4d21e2ae3f9b266354b01ef34
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SHA1
5fbbf48a3affacf0674db414c5494d606db0ad69
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SHA256
8551b36540f1bf97f2974dbcf2cf87896cb50fef4d731a1c4aafdc1f337d1b67
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SHA512
8a1c5219874a8c8342537d54a18a079684270376746f7bac4d24d65d9d282581b4c5d77581caf09ae37cda43d66f01d7422cba0668782d55e7fc29fa2424e16d
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SSDEEP
1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLktN2r:X6a+SOtEvwDpjBZYvQd25
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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1264 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 2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_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 4084 wrote to memory of 1264 4084 2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe 86 PID 4084 wrote to memory of 1264 4084 2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe 86 PID 4084 wrote to memory of 1264 4084 2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-09_b146c1d4d21e2ae3f9b266354b01ef34_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084 -
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:1264
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
81KB
MD50e6e119c8f65be212a2b84077f1e7960
SHA113b3e8868d1cb7812eb3fcf33d4f12a046338cfa
SHA256f250a69a7f66e2b46857d3cf9248a75615808369aea7ab1a0ba52acf9f14384b
SHA512a3c216c44d3367e52822614ee19b061dd9f94ac1c34b055dc95c5b4865d4776909e194dc14c679b3f3cbb72fe02235c648724ae629663100990b1825d3036bf7