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
01-10-2024 06:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe
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Size
49KB
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MD5
0bf857c7792fd014db3d3ff07213b055
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SHA1
8c98d13c103d9680d5ee7d0091384fb2279c4c6a
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SHA256
c193148c3ace5d4c88633ed0278e5a434dcf1445115449a50e3f6ce5faca13dd
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SHA512
ace26a90a4734f619db431c5cd9355743c2234c773496049431ea538a1cfb4070cebf8dde025befaeabac5e418b45615fb4299c1feead333554fb1513f44df4f
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SSDEEP
768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkc1:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf1
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 2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3940 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 2024-10-01_0bf857c7792fd014db3d3ff07213b055_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 3464 wrote to memory of 3940 3464 2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe 82 PID 3464 wrote to memory of 3940 3464 2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe 82 PID 3464 wrote to memory of 3940 3464 2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-01_0bf857c7792fd014db3d3ff07213b055_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3464 -
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:3940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5cdefcd44eba4dcef5fc881770cac8d12
SHA1fbb7b272c5802e148caecde603cdb6f8073c044e
SHA256dd391ab9614384daac99cef4f615464a00422b64e7d862a1f6aafb0997119d6e
SHA5123a677fd80140aceebd09424fd97db88f560704675c6bb076b2162b26f9e111f62c64bc564c6f7548defed1ea478751594bb557d8c18735151761bf118667ad74