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
08-03-2024 19:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe
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Size
41KB
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MD5
7f3329a952ab6285632941caec49a069
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SHA1
93b01c66fbcf1defb9834d315fb61060b5633ebd
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SHA256
f0f1326f42c64fb7d69b6e226139e3be52b06d45e6bce206894977bfde77d274
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SHA512
70d64aa344226e1fc838b2ab776daec11bfc0e58e176980b7be6054225bb7fc6a956b28eeaf8dd5b897e72194d34247d931d13a38cd5e94ea3404e488d199605
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtXfNg:6j+1NMOtEvwDpjrR2XfNg
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2264-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2264-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00090000000122bf-14.dat CryptoLocker_rule2 behavioral1/memory/2892-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2892-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2264-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2264-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x00090000000122bf-14.dat CryptoLocker_set1 behavioral1/memory/2892-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2892-25-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2264-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2264-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x00090000000122bf-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2892-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2892-25-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2892 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2264 2024-03-08_7f3329a952ab6285632941caec49a069_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 2264 wrote to memory of 2892 2264 2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe 28 PID 2264 wrote to memory of 2892 2264 2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe 28 PID 2264 wrote to memory of 2892 2264 2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe 28 PID 2264 wrote to memory of 2892 2264 2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_7f3329a952ab6285632941caec49a069_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2264 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2892
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD5963da1dd60e7d942a3d8a41e0ff8a539
SHA1c56cd91403dae032142fbbb47168a79fdc040c89
SHA256cfe86188ef4c6a00a1296a8867f5427c3f2181a19aacb475ad6b563efe7253f0
SHA51282a0cf1f561326b59df5492f2fa0053c73a6d38c377c7fdd3e1852c9d2bf5545f2741e0481f25ec363143f93bc7efb32adb6ae6c1cfc8ec464f4d234ea3c8637