Analysis
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max time kernel
150s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 18:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe
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Size
49KB
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MD5
57fc38a684b777866a772a9bc164ff37
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SHA1
74452df5d3399427b057635059cd7087a9ace041
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SHA256
2a25cf1c8376aed23217ed52f08389a6e38668ec64525e72be76d6dd4c7e27cd
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SHA512
ec1e7aabc5b4a569357e10d90d9c342d883deb862130a87c41651812e9fff5fe75b6ca345263184aa617c010951c8aba9f1232f0f2a0db70ab2acb3a580cffab
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRh+Ep6e:xj+VGMOtEvwDpjy+TRh+EUe
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/files/0x000b000000015a2d-25.dat CryptoLocker_rule2 behavioral1/memory/2480-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1152-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1152-13-0x0000000002800000-0x0000000002810000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1152-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2480-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/files/0x000b000000015a2d-25.dat CryptoLocker_set1 behavioral1/memory/2480-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1152-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1152-13-0x0000000002800000-0x0000000002810000-memory.dmp CryptoLocker_set1 behavioral1/memory/1152-1-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2480-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/files/0x000b000000015a2d-25.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2480-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1152-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1152-13-0x0000000002800000-0x0000000002810000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1152-1-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2480-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2480 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1152 2024-06-01_57fc38a684b777866a772a9bc164ff37_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 1152 wrote to memory of 2480 1152 2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe 28 PID 1152 wrote to memory of 2480 1152 2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe 28 PID 1152 wrote to memory of 2480 1152 2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe 28 PID 1152 wrote to memory of 2480 1152 2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_57fc38a684b777866a772a9bc164ff37_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2480
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD518ebed467ea79d0091b20411cb049d84
SHA1d782ce0aa126beadf0f7a43a588d972a386b00a4
SHA2562e12df8282d356e234cd123d83bb816f769c1a5030ad3c186823b25cae00cd7c
SHA5129dec44080b08a0939470141344b06519ed62774bf377f0229fdb1896543b01c20c01761d4854a01fe0da49d92d8d0c4b61ca4c56168de75fc2f2d1897bc0f35e