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Analysis
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max time kernel
147s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
10/05/2024, 15:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe
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Size
96KB
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MD5
d363ea66299eda55255b58dd53ec4597
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SHA1
3db531619a8302d02a4546e57483a12bc884119a
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SHA256
af7473a2ec1743ea07fe61f24b20cb013d202fb126c416d47a698f1e3f4089ac
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SHA512
617aaaa997992c7c9e9642a1304bfb76d47c4efbece508e585ff948d3357b1b9fd1139667d8ce401e28afc93366664955727c3f1c45adc6d6a8541d64c8ed7c7
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvAc+:xj+VGMOtEvwDpjubwQEI8UtzNcO8Ac+
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2088-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d000000013adc-11.dat CryptoLocker_rule2 behavioral1/memory/2968-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2088-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2968-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2088-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d000000013adc-11.dat CryptoLocker_set1 behavioral1/memory/2968-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2088-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2968-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2088-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000d000000013adc-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2968-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2088-15-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2968-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2968 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2088 2024-05-10_d363ea66299eda55255b58dd53ec4597_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 2088 wrote to memory of 2968 2088 2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe 28 PID 2088 wrote to memory of 2968 2088 2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe 28 PID 2088 wrote to memory of 2968 2088 2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe 28 PID 2088 wrote to memory of 2968 2088 2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-10_d363ea66299eda55255b58dd53ec4597_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
96KB
MD51d251ca28f7e3b2b582bb8a65a2f4bb3
SHA14cc10d3a5bdc4cda44d7a8b7fd11cb5f9b22d718
SHA2562487772a20183d3f46071238eb4ee097d02752086b93bcf8de69409531171dcb
SHA5121886d688ba903b1ea75a6a06218c39af2d3d29bf4fcfd8db9147c703fdef91aff151ffee4a3db5761f98956c7255643a4e74b28d92bc5542b68e9e5639eec5c4