Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
11-03-2024 21:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe
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Size
49KB
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MD5
cbc2382a60ce63e50b3c28badb8a76c1
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SHA1
05fd6051c7550374efb583fc1f0dc5f099b69876
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SHA256
7408ced6e646a00249b1908cd89a17a3afac33283da6f103bca806a6dab26c7c
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SHA512
5ad8a1c370a8d8715ddff44b10c63bd164272cdde3ade723bf5dacf05239be19a14dd79c099c7bae2995fe729de6e8918cbe81a88ecad36a69fcbff67791ff6d
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHU:6j+1NMOtEvwDpjr8hhXi0
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1996-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012320-11.dat CryptoLocker_rule2 behavioral1/memory/1996-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2560-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2560-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1996-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012320-11.dat CryptoLocker_set1 behavioral1/memory/1996-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2560-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2560-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1996-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c000000012320-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1996-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2560-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2560-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2560 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1996 2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_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 1996 wrote to memory of 2560 1996 2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe 28 PID 1996 wrote to memory of 2560 1996 2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe 28 PID 1996 wrote to memory of 2560 1996 2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe 28 PID 1996 wrote to memory of 2560 1996 2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-11_cbc2382a60ce63e50b3c28badb8a76c1_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2560
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD57fa83cf01c2410b8ffb4f9a5a8606bc4
SHA155332cdafb19aea3a5fa117973b01d331ef24f9f
SHA256e9dbd71717a9c14f4c482244d4983e63f81ece5014271333a02f0af7b4f2fc9c
SHA512d5a2b0276766db55b4bdff58fc540c757be8debf909ce36bbf8511ae745e70b7d4d1e4622ecc2967d4b0699cd6b958e0b115940839a1816976a5a836bdda1848