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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
24/01/2024, 04:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe
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Size
38KB
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MD5
5786ecd4209f408cc88f091e46f8e9bc
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SHA1
0f0bed354c391a74fd789db5c28a787c6a65bb2b
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SHA256
4ee6b60582fa255596cc51887bd68557371e08ae68dbed62b8a41b951ff538b2
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SHA512
e27690b1fc2ade70d73cbe952ddbdb6eacb1c07132e63c3e290ab07c5713921bf90fafb41ef3c437d915b05f24b6cdc4dfe8250cfc67b1fcbd305d32835086ce
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMxyqf:6j+1NMOtEvwDpjrfX
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2364-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000014120-11.dat CryptoLocker_rule2 behavioral1/memory/2364-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3000-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3000-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2364-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0009000000014120-11.dat CryptoLocker_set1 behavioral1/memory/2364-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/3000-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/3000-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2364-1-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0009000000014120-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2364-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3000-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/3000-25-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 3000 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2364 2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2364 wrote to memory of 3000 2364 2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe 28 PID 2364 wrote to memory of 3000 2364 2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe 28 PID 2364 wrote to memory of 3000 2364 2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe 28 PID 2364 wrote to memory of 3000 2364 2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3000
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD54e260b4744bf517f218405318ff296ad
SHA11f7f6cf6b51b31b657d3da756141fee4f5cf7b52
SHA25644c1e42fb831fd44c996f07d2426cfd86c481fde246fe0a947077701aba247cc
SHA512383ba0af01459cc54932eaba5cffa1b01bd20b2ad6f9ad1e1c239fd4431dde446df09478d6bcb94fe10a330f5504e546a94ce1e7a3cfd2f17ded88db96d30fca