Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
31/05/2024, 22:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe
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Size
69KB
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MD5
1ed7e4f9df235a2f98340c743eb31b3e
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SHA1
93b377fc5d4e640c58160bba877d8a52fc10128e
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SHA256
e43ea98a64dd8a2da63c922062649834b7be8cbe9e912687671fb4bf7c4a3fcf
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SHA512
89d0f793e66b8545517fb56b7051c620f72a564a250f124e1230a99ef990c11689fb2d95500ef81783e3725b4fb564019f8dc0e36871bc998abcb6efcb224586
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/d/:i5nkFGMOtEvwDpjNbwQEI8UZDV
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1340-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b0000000122ee-11.dat CryptoLocker_rule2 behavioral1/memory/1340-13-0x0000000002A80000-0x0000000002A8F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1340-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2748-18-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2748-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1340-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1340-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2748-28-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/1340-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b0000000122ee-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1340-13-0x0000000002A80000-0x0000000002A8F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1340-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2748-18-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2748-28-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2748 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1340 2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_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 1340 wrote to memory of 2748 1340 2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe 28 PID 1340 wrote to memory of 2748 1340 2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe 28 PID 1340 wrote to memory of 2748 1340 2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe 28 PID 1340 wrote to memory of 2748 1340 2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-31_1ed7e4f9df235a2f98340c743eb31b3e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1340 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2748
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
69KB
MD5ecb8c60779a1484070ee4f38d5867d66
SHA1ff4155c4b4965374a4c1d685f82ee7a85aea419c
SHA2566573c4c48c1f558ce18de01d207969317e40a0995b2451491dd3153fbc8f7894
SHA5126c4775d4bc3ec7704b733f6af83d99d7a5c18bb37871d416baa93f87ae8266c516c197de0298974c066ac507818079ae64c1a42dba597e0e924460a1876ab888