Analysis
- max time kernel
150s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
05/05/2026, 02:10
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe
Resource
win11-20260130-en
7 signatures
150 seconds
General
- Target 2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe
- Size 81KB
- Sample260505-clpv8aex5x
- SHA256 52c07b3acb2913ff4b20ef7213509c827d1fa060aa4a68d4387d436945f90576
- MD5 0686f342a8b79260fd36018edce3f811
- SHA1 336bed33310d93cb4c29d10a01d1ae65f437e744
- SHA512 8c8f5188222959522022dc43bfc6892c164a52da7973f67d2b441c5131d7e324177ebb9e304e5c86e9e3ca7069b7c6446be56b9ec56aa15fdd299a0ccae4d7cb
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/H:lj+VGMOtEvwDpjubwQEI8UDVH
- TLSH T11983BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/1104-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1104-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x002c00000002b0b4-14.dat CryptoLocker_rule2 behavioral2/memory/4684-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/1104-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/1104-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x002c00000002b0b4-14.dat CryptoLocker_set1 behavioral2/memory/4684-19-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/1104-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/1104-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x002c00000002b0b4-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4684-19-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4684-27-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4684 misid.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1104 wrote to memory of 4684 1104 2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_0686f342a8b79260fd36018edce3f811_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4684
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 81KB
- SHA256 03789bf16d5ab51942caa8e4708c3879221408467702e0ec62f435dc26e85001
- MD5 0757d19b404c8c145c2df4efd95398d1
- SHA1 b21272e91ff913df5857622d97c7e769957eca32
- SHA512 f208677b95eeddc3d6eca9eb60d4de0a7ca0d3681dc950d25e82c0802ea72c30860f38d59ebec4d1a1a975ebd980bbc38bfa95033ea94092dea8ebb4faac02fc
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfrV/J:lj+VGMOtEvwDpjubwQEI8UDVJ
- TLSH T19283BC386FE91672E3BBCAB5D6F641C2B975B8223D12980D40DA53440C33F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH