Analysis
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max time kernel
150s -
max time network
147s -
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 03:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe
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Size
45KB
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MD5
d7d156be67367dec7bd4d1b73ee5488d
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SHA1
f96200ffb199b20722a062adefcfc1fdb463edcc
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SHA256
c2697708c56ffd777f7c208e751d85dff9dbae55908a88295cca2390577cac15
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SHA512
3add5bb44b5b220415ae1c363b0788f9313490180a052ac69e344c6481df1c62f8467907b56dbdbbbd69c996a8fbe58c5e7e36ba2eaf1742e4bea182ae479306
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk38:bm74zYcgT/EkM0ryfjd38
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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3464 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 2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_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 1352 wrote to memory of 3464 1352 2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe 86 PID 1352 wrote to memory of 3464 1352 2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe 86 PID 1352 wrote to memory of 3464 1352 2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-09_d7d156be67367dec7bd4d1b73ee5488d_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1352 -
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:3464
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD5c54f99c10137da09b159823b09e04644
SHA196d2d0083743ab2410a190c54b11eda2473fa79f
SHA2567fe1e8438c0f5c355fff4fc4c42de3f6cc5981b2012b87a3cdd80654fea7a6ce
SHA5122498b2104cf9978c3fadfe94ff15fc302c00e6bc8f8005aa65b867e283eeb59a8106a48290c45f2eeac927f4680ecc585ea2128ddeb8a3d9d359f3e8d3249df9