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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
27/05/2024, 18:46
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe
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Size
57KB
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MD5
ed88d6c79983eb0686eb54fc98a81e74
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SHA1
b708afd7618b1a92252f8a08cd06802c1cd8cd69
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SHA256
f79c17360159127a86fa6f31bbfd527ce3e63f9a33e71e41c7bc45fa7c51ba3f
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SHA512
b82dae5de89222db0f3ba358945ba97fa206d4be02a4102ea955b8c7734031252f3c8de7c289fbffb740b78bbcf8f04975a3ab48c0e2cc51a532e2e252cdc2ee
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7/e4P:6j+1NMOtEvwDpjr8oxExe4P
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000015f7a-11.dat CryptoLocker_rule2 behavioral1/memory/2360-13-0x0000000000910000-0x000000000091F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2360-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000015f7a-11.dat CryptoLocker_set1 behavioral1/memory/2360-13-0x0000000000910000-0x000000000091F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2360-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2360-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000015f7a-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2360-13-0x0000000000910000-0x000000000091F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2360-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2660 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2360 2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_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 2360 wrote to memory of 2660 2360 2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe 28 PID 2360 wrote to memory of 2660 2360 2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe 28 PID 2360 wrote to memory of 2660 2360 2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe 28 PID 2360 wrote to memory of 2660 2360 2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_ed88d6c79983eb0686eb54fc98a81e74_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2660
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
57KB
MD504d00acfa3a4fed3b42b50971aa7d731
SHA1ae4800e7d1b7250b3536d527731e2c0cb311c0cc
SHA256d3c5c8ba6187077ef3d0080bd064c368db8040aa2dcccbf13e3fb22978e1f4c4
SHA512907886b2a7a0fb44f99a0f472439e83ca839be3f79413daa10fa76ed0377cf5e96e0472f7592db55307c4d7ecc02848f1f4df956431aaf13a7368ae734f4a578