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Analysis
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max time kernel
133s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
11/08/2024, 00:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe
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Size
5.5MB
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MD5
553237687f90208ad55f27b66785924c
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SHA1
4e690583a57ddcbdbe5b5b9551fdf6da409ac465
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SHA256
df2977bfaa9452351a5af4aacf78eefafe7e1778f70741f0c4ea433663bd361c
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SHA512
5fe24cd4a2559fac4527c8a84e0b3b4148f89d873ed91ebf593d13f0351f9bc0e47a33a76085222390e28f5f88bff91a4e7f7dab66846ddc17457cf268a9b415
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SSDEEP
98304:Vd3WWklj4b+ZTRXb81tTFjWYt8nfa9WfkOsm5UfjQNYT/StkkLlDzXgsOUlE8Fo:Vd3Vklsb+ZKyYt8fMtOsm5UfjQNqSKcW
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2380 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe -
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 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe 2380 asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2524 wrote to memory of 2380 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe 30 PID 2524 wrote to memory of 2380 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe 30 PID 2524 wrote to memory of 2380 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe 30 PID 2524 wrote to memory of 2380 2524 2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-11_553237687f90208ad55f27b66785924c_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2524 -
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
- Suspicious behavior: EnumeratesProcesses
PID:2380
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5.5MB
MD5943f109a3e3d8d8fca0e426798db39e2
SHA107e9ee958fbd8686e81f91126696cca5bbbe049f
SHA256df18df4037addba767f5df9bcf73267909718d287b23bbc6ddbd91348c67f46a
SHA512949616ee1eca9eab0c341743201e6c71fb489a1e1e7005d27caa4a8f332d4cbf3c12510a4b51861404e3a0deb4b0c30378681813a21dd57076fde10ff03e0ee1