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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
14/02/2024, 08:37
Behavioral task
behavioral1
Sample
2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe
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Size
95KB
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MD5
7b2745d2b31177e91eb76ec278a0501e
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SHA1
4d240f06f51eef6adfd8f81f2cdf0287933863b4
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SHA256
5ec83493c39022504d82a616efe34145ec95eaf591eb45e4e8767aa808faaf99
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SHA512
0ae3517573bc7a752012d3d1b5a2e8d368680ac87974480a80829ab5ed6f334111a1ad416eef3ca10d9ff76440318d0687df8699a145e791fa2afa8cf4905f65
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp015r:AnBdOOtEvwDpj6zX
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012238-11.dat CryptoLocker_rule2 behavioral1/memory/2000-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2000-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1068-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1068-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000012238-11.dat CryptoLocker_set1 behavioral1/memory/2000-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp CryptoLocker_set1 behavioral1/memory/2000-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1068-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1068-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/files/0x000a000000012238-11.dat UPX behavioral1/memory/2000-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp UPX behavioral1/memory/2000-16-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/1068-17-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/1068-27-0x0000000000500000-0x000000000050F000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 1068 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2000 2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe -
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x000a000000012238-11.dat upx behavioral1/memory/2000-12-0x0000000001CD0000-0x0000000001CDF000-memory.dmp upx behavioral1/memory/2000-16-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/1068-17-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/1068-27-0x0000000000500000-0x000000000050F000-memory.dmp upx -
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 2000 wrote to memory of 1068 2000 2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe 28 PID 2000 wrote to memory of 1068 2000 2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe 28 PID 2000 wrote to memory of 1068 2000 2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe 28 PID 2000 wrote to memory of 1068 2000 2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-14_7b2745d2b31177e91eb76ec278a0501e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1068
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
95KB
MD503dd3f351a3549990ac5705d608130ca
SHA1b426d9b96dafa0e965733ff500d5a815f02db44a
SHA2560d4a0ad1460702712db6f8d84a825550222aa47aebb19bf9acb25b429566ea93
SHA5128bce3d9ebd26a6a9e200729aadb2fa3ed9e32d41db996a5470fcc8aab238341319020ddbd7f040951688e069649d7431ee391dfc0c8384f9252a49748d42b669