Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/09/2024, 13:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe
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Size
42KB
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MD5
02a3b95f78a14b5435512af85e0d9474
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SHA1
a36b5e2869c6225af43fd029e2010a2674fffac6
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SHA256
808807b9d41f187fce53d5449b1b594692ab60eec78db0ec453551d7d8841128
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SHA512
3c02eb61f65be4ac1105ee001fb84f6ac6696284b6053f2735f9cd67023592ec1a02081ee725603e51f7b570100e72b806c9689e6e8a7684cb9cf13163b02d82
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SSDEEP
768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCD:bA6YcA/X6G0W143QE
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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 1800 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4216 wrote to memory of 1800 4216 2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe 87 PID 4216 wrote to memory of 1800 4216 2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe 87 PID 4216 wrote to memory of 1800 4216 2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-11_02a3b95f78a14b5435512af85e0d9474_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216 -
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:1800
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD5b6b32b3facea68d5679c6d390d035f52
SHA1eb2f17e4a24ec3b2783c3fe92116bd566313c180
SHA25680060b2784bbce297ffb0fdc345dd68da3cd7f87905684d12d224cfe87dc4ac0
SHA5124a1d110044c1b0438cc1f29509cf53e6b8840cf567cd247fb66f3840defe71b196f86d95a3f8eeaa4da2f434d3f9d90d06c230172ec2a1578ac6f5a1ae71529a