Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
13/06/2024, 04:35
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe
Resource
win7-20240220-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe
Resource
win10v2004-20240508-en
7 signatures
150 seconds
General
- Target 2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe
- Size 70KB
- Sample240613-e7s6waxhmn
- SHA256 e68b6d2ec0e9c7c92b10163711bc7b478466a64d48d5ceb5918b84a21935598e
- MD5 d5430e702288d673a9bd280a1836e87d
- SHA1 3f9ddbbe6e3112b85bc2429431ed8b3e7f217559
- SHA512 0b4d3d786b1910e167b0ff5f3416bfc6cb80584ebcd927e7f6c6a82763c83af2085fcf7c9c1ac9736e6a61b041b06b64d9ff65deeac2abfd7a0a7d110cfc648d
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dp2:i5nkFGMOtEvwDpjNbwQEI8UZDK
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00050000000232a4-13.dat CryptoLocker_rule2 behavioral2/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4772-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral2/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral2/memory/4772-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral2/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x00050000000232a4-13.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/2908-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4772-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe - Executes dropped EXE 1 IoCs
pid Process 4772 misid.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2908 wrote to memory of 4772 2908 2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe 81 PID 2908 wrote to memory of 4772 2908 2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe 81 PID 2908 wrote to memory of 4772 2908 2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_d5430e702288d673a9bd280a1836e87d_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:4772
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 70KB
- SHA256 1f0fad83241b89b421ca30bb8ba08781d474ca183c0820c4d13ad86d08037786
- MD5 4651050b1d3bb17975ec7a898051b100
- SHA1 b954d1974cabfd24e80987f6399dad80f3e32923
- SHA512 45711348c5b57fe27deddf99c2f446b40a1eb8183014b7aa1c6cb938cb2dae374911ebc56c005ed5095e2ee46aa0191eb8ceeea38280944f08cee122d8b4484f
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/dpW:i5nkFGMOtEvwDpjNbwQEI8UZDa
- MD5 SHA1 SHA512 SSDEEP