Analysis
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max time kernel
149s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
08-05-2024 15:25
Behavioral task
behavioral1
Sample
2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe
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Size
89KB
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MD5
8480381a9564ae7c0cbdda15b7182cfe
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SHA1
cb25d78cf85d567cc78feab5616ebb93d4d4c2c3
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SHA256
bce0547ab83f04674510b345c2ba86efc6a59e784b23b595df1c74dcbecf8730
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SHA512
4404f79d11c5b23e2c430e223fb724f8991dd97836fa506885b8bd23d71f48d61227fb2d4af844ab8d47254a301f3397450d1794547e41d0165e555530ee5224
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy8tyblb:zCsanOtEvwDpjM
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1600-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d00000001228a-15.dat CryptoLocker_rule2 behavioral1/memory/1600-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1600-12-0x0000000002840000-0x0000000002850000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2084-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2084-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/1600-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d00000001228a-15.dat CryptoLocker_set1 behavioral1/memory/1600-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1600-12-0x0000000002840000-0x0000000002850000-memory.dmp CryptoLocker_set1 behavioral1/memory/2084-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2084-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral1/memory/1600-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000d00000001228a-15.dat UPX behavioral1/memory/1600-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1600-12-0x0000000002840000-0x0000000002850000-memory.dmp UPX behavioral1/memory/2084-17-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/2084-27-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 2084 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1600 2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe -
resource yara_rule behavioral1/memory/1600-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000d00000001228a-15.dat upx behavioral1/memory/1600-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1600-12-0x0000000002840000-0x0000000002850000-memory.dmp upx behavioral1/memory/2084-17-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2084-27-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1600 wrote to memory of 2084 1600 2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe 28 PID 1600 wrote to memory of 2084 1600 2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe 28 PID 1600 wrote to memory of 2084 1600 2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe 28 PID 1600 wrote to memory of 2084 1600 2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2084
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
89KB
MD517399e809fd60fe6541bf2d5a911a58f
SHA13c0311b7a5b571d6f7ebce7ca5f20762fa5ef2b6
SHA2562f1e28145d0ca49846f8d3a07e0af38d649f8b156e0820ed6ae15bcdff09e735
SHA512cbfad79204e11384cad6e6263b4442f4fa8ae302a4576d655a0722649d647a8b3c69fd60e250d520b8e498b9ff53d915cee2b961d13f4e9be7bac4e09be3140d