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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
28/09/2024, 07:35
Behavioral task
behavioral1
Sample
2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe
Resource
win7-20240729-en
General
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Target
2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe
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Size
72KB
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MD5
3d6b9d50fcf3675de61241d5184f6e2f
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SHA1
0d7d5893ecdcc9bdea82eaed7e725c5fdf7a8152
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SHA256
e428891b1a094a92bdf0ec7970545f1f2ab39d1a46409f15b386149457b3b25b
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SHA512
c9013fa7bb7b821b200311bc84d15bf447201e531ee27a996062dfff1932b0aa9bf6ae12e50fb051f071af56e442bb94b15c28e543263fed63a67b91fa8584d9
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SSDEEP
1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9K:C4Q2c94OtEvwDpj4H8zv
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2840 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2300 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe -
resource yara_rule behavioral1/memory/2300-1-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x00080000000120fe-11.dat upx behavioral1/memory/2840-18-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2300-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2840-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 misid.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2300 wrote to memory of 2840 2300 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe 30 PID 2300 wrote to memory of 2840 2300 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe 30 PID 2300 wrote to memory of 2840 2300 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe 30 PID 2300 wrote to memory of 2840 2300 2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2300 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2840
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
72KB
MD5bb3cda893c577b6e97376e5ae0802eba
SHA1e2a687d1f73635b4468c5f01c47f48213d7535eb
SHA25661d7b9fde1ff19affe5c0c78a24eec03a8117007a0a1edb8b5d405ccefd92e61
SHA512f2d02c62bd635597f7ca28e484fdad224f114496ba83832e38a5fa30b8da0cd5e2b8774828b6be9cebf975b1d6100498fa53e76a888409f0bc99db1327b084f0