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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
29/03/2024, 04:11
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe
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Size
49KB
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MD5
ed219b68d56dacb2843e764a325df41e
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SHA1
4f68a08af30e01cb436af38eb6943acb29f442a9
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SHA256
2aaa093378f6a2df9099c9d0820c7d132b1bfbbe7eead78cd765365ba9b12659
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SHA512
ec20a1f995b4aa7151a023345e660497cd129391c012e9060d5a192508bb3231964eec2e442104a4ebc23d09491f80473d54f1d3a86ae1d9dc1db3910b975435
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHf:6j+1NMOtEvwDpjr8hhXi/
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2612-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_rule2 behavioral1/memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2612-13-0x0000000001F20000-0x0000000001F2F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2612-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0008000000012262-11.dat CryptoLocker_set1 behavioral1/memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2612-13-0x0000000001F20000-0x0000000001F2F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2612-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0008000000012262-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2612-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2520 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2612 2024-03-29_ed219b68d56dacb2843e764a325df41e_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 2612 wrote to memory of 2520 2612 2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe 28 PID 2612 wrote to memory of 2520 2612 2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe 28 PID 2612 wrote to memory of 2520 2612 2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe 28 PID 2612 wrote to memory of 2520 2612 2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-29_ed219b68d56dacb2843e764a325df41e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD58fa4095db277ff27803b004701ccc31f
SHA1766c1e7ecea8738d9ec973398d882d65b42a167f
SHA256ef220630f273549d04566135a40dd0d7f7880cbf823a13e345ad057a49964d4e
SHA512a7219eb1414d0e3dd9858bfe7a527402e503d6a0975887f3d16e1a991b967ea05d671bb01c24cdc5bdd8bfbad9250b815e1473f0530928942a3c8719b54e86a3