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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
07/09/2024, 07:40
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe
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Size
35KB
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MD5
d8c4af34cf12d0ce0082d6ce2efa3fe9
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SHA1
2581d13dc6010176c8e3d0c4902a5cd110eea055
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SHA256
c280dfc21cced11b2212e2854ba403073aa99991e6b409527cd87276f371c653
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SHA512
bd3ee633e407b293a4b9368296d4330f5b6c422db0d928fda096efa3aeccdebd2085fa72f6d1389ae53838a758d57a6cf0f11b4ec95c4180d787b8d19b78a56e
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SSDEEP
384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuadQGs7:bG74zYcgT/Ekd0ryfjHGs7
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2796 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2264 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2264 wrote to memory of 2796 2264 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe 30 PID 2264 wrote to memory of 2796 2264 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe 30 PID 2264 wrote to memory of 2796 2264 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe 30 PID 2264 wrote to memory of 2796 2264 2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-07_d8c4af34cf12d0ce0082d6ce2efa3fe9_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2264 -
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:2796
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
35KB
MD55a499d5a81f660fc1acaa8708c2534e4
SHA13cc316e68c9823bfe2c22ba67113147ea6d06a4b
SHA25661662f6911afac0f72d7c6bb1683eead7b259d62c9e136069fb505e7f897d006
SHA51277649d7504d27ff18e40e04566098ca603358a6a85b3da16c52719b015a72df8ac30afca23df688841f3559e40bbd2ba0e878a1550289d13cedef3092717d086