Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
31-10-2024 08:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe
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Size
47KB
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MD5
25dca2f755b8491e8c0252bfc0c158e8
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SHA1
331e39301f12f37adc7f5e7f525e6903c69e5133
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SHA256
514d71a06b5c074eb07af8e04e786c65438d1ad98adb6e63c6a442198c171a3f
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SHA512
b3187aab129e5524b8dfc6b5285d0ad2cddb5219a3fe652a7cd5a2f51646c7c3346d4e92f0d54dff37997782e61683eafabc1db94cbb74d47734fecd128132a0
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUknqs+P:bm74zYcgT/EkM0ryfjdnqs8
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
hasfj.exepid Process 2684 hasfj.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exepid Process 2080 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.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.
Processes:
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exehasfj.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exedescription pid Process procid_target PID 2080 wrote to memory of 2684 2080 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe 28 PID 2080 wrote to memory of 2684 2080 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe 28 PID 2080 wrote to memory of 2684 2080 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe 28 PID 2080 wrote to memory of 2684 2080 2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-31_25dca2f755b8491e8c0252bfc0c158e8_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080 -
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
-
Filesize
47KB
MD5a41479f053a770024aef5fcfcc0aef25
SHA168b0963767f8d0e01bbf7cf6b8ba48f5067986b4
SHA2563ad195f5d8d25092d253e5196030424eca2dc53dac7313fd0902a7805c0001e8
SHA5126c7d2e5fafe4607a0bd880b747d50aedd6ba52e91811f7ff237fc2671ef69f0afe18ae9a52c7f81e939676c6a879bd70bd70cbdb82f91f138257f879fadd017e