Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15/10/2024, 04:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe
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Size
31KB
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MD5
4290c1ee1d1d39e2d5a00c75945c324c
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SHA1
1e83383b16f980967a0450ad872a18e11bed466f
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SHA256
706cda0148f98ad1b5c407d29820f68baa7c97491116a5bf72c37ad6587a4d3e
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SHA512
32796346dc2289af1e63e63e55255deeba8c0f118c3cdbe81a704a767876c192e310e69ade407531630f36f535668a07313290d7b9f5ec52ca1e1c53234a5b36
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SSDEEP
384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunexRB/:bA74zYcgT/Ekd0ryfjPIunYJ
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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4720 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 2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_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 1724 wrote to memory of 4720 1724 2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe 85 PID 1724 wrote to memory of 4720 1724 2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe 85 PID 1724 wrote to memory of 4720 1724 2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-15_4290c1ee1d1d39e2d5a00c75945c324c_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724 -
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:4720
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
31KB
MD5a1e6ddb41522b80e54772a6cf67c9a43
SHA17c127e30290882f52094befe57439b64812d55cf
SHA256f045d41bffb16bd245664d1114595532cae314773c0daaf4eb7f5ea9672d6933
SHA51209560f2b22c7fccd211d1151a099227cca72fc0c37d0f57475a526bec6cb4850956464ab1e60728c1245c2626ce36e6627e70c5fc840d8e4739e5250d1ed65f0