Analysis
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max time kernel
150s -
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
20/11/2024, 03:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe
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Size
46KB
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MD5
ff91899f15cdcd3c00c984e990d061e2
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SHA1
e8170e9d845d7a4bf03b838a7c0825a5fd648a91
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SHA256
0e8687c5d6ae9f7476a60eff240b16bc735566f9128b5a0193aaa732c647f3df
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SHA512
a468cdc311b2e12fc8125622c1548975ef605b1cb9757cba6cd6a72d19e0603be2df3e8d022dd858c4b48a50bdb5cf04e6278eb6e74960e5b0095f16568a5260
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUknqS:bm74zYcgT/EkM0ryfjdnqS
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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation 2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2684 hasfj.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 2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2580 wrote to memory of 2684 2580 2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe 85 PID 2580 wrote to memory of 2684 2580 2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe 85 PID 2580 wrote to memory of 2684 2580 2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_ff91899f15cdcd3c00c984e990d061e2_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2684
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD5d5487a518e98ae10e310ce089cf956c2
SHA1b52d985c4a7c7efce8929159097c189d3740226c
SHA256c9da7a5a591a6c10b94cbf568ccb88bb54ae4311284ff34656aa34ed85695c72
SHA512de5c6e38392dfab17f88b9db524ba83e0b0b09a46ce0877b6c00a59bba4b435b4d46a13efb75646c2a1d9bb85d869dd1922707fe9d2c8bc9f0f915c967bbdd0d