Analysis
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max time kernel
0s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 06:34
Behavioral task
behavioral1
Sample
2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe
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Size
70KB
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MD5
ed2bd2daae3486f51c23fe80661c4916
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SHA1
6ea8859a4072ffae114e7c80d62578ac00d27972
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SHA256
a566e1b073ffbe77db3ad7b456abd3a7531a18679333b731568a3d509f9b2681
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SHA512
4bb7ef2cc0a9bc8fede21338dc8441130d8ed9720cd387c12530dc002a0b3b61ea6be6e7ba8e7574e4dc62014dea5bf38cabb2771edcf86a266682bad1da3e2c
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SSDEEP
768:quVbxjgQNQXtckstOOtEvwDpjAaDOK6PsED3VK2+ZtyOjgO4r9vFAg2rq6W1A1PX:quJu9cvMOtEvwDpjWYTjipvF2bx1PQAX
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d000000012336-11.dat CryptoLocker_rule2 behavioral1/memory/1796-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2192-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1796-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d000000012336-11.dat CryptoLocker_set1 behavioral1/memory/1796-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2192-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1796-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/files/0x000d000000012336-11.dat UPX behavioral1/memory/1796-17-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/2192-16-0x0000000000500000-0x000000000050F000-memory.dmp UPX behavioral1/memory/1796-27-0x0000000000500000-0x000000000050F000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 1796 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2192 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe -
resource yara_rule behavioral1/memory/2192-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x000d000000012336-11.dat upx behavioral1/memory/1796-17-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/2192-16-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/1796-27-0x0000000000500000-0x000000000050F000-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 2192 wrote to memory of 1796 2192 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe 28 PID 2192 wrote to memory of 1796 2192 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe 28 PID 2192 wrote to memory of 1796 2192 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe 28 PID 2192 wrote to memory of 1796 2192 2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_ed2bd2daae3486f51c23fe80661c4916_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1796
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD5e641ad5dfc1a0e785bc6ea1430012a01
SHA1bebbd3e1e1d2db8544cceeece9812721afc61694
SHA2568fcf55523cf0ad5ba36407b910ea3288f684aafffc2152201f2c49d245022e6f
SHA512ad29528acb9fc4d0c6c862c360f78250d82246390c4cf41583552725ee49f84899afb854b2f542583aeeffe311b94319395f02ac9e031591c06f65d86e6cf5ef