Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/07/2026, 23:32
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe
- Size 94KB
- Sample260722-3jm7qaap7s
- SHA256 34632094693ff0c02b0cf8e5d26f042abc2483842a2bf9597c5f826237c1cae8
- MD5 99958b13a09e41ad49110e2643f560d4
- SHA1 b0b5194f46624fae2fd9788e070efe3b5ccb47ad
- SHA512 1aadd9b605ad086b6027ba1e6c1d56b2f713e20cd89ec5b8e6a14dfcd52a10b1abdccbebf03e9b1c8e236e86fec9bf60ef23d3574dd083f27de6bc4d0ace6577
- SSDEEP 768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJZ1Mcg/8:xj+VGMOtEvwDpjubwQEIiVmk99h
- TLSH T16A93CD786FE91672E3BBCAB5D5F641C2B935B8233D22980D40DA13450C23F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4336-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4336-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0009000000019cc0-14.dat CryptoLocker_rule2 behavioral2/memory/4328-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral2/memory/4336-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4336-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x0009000000019cc0-14.dat CryptoLocker_set1 behavioral2/memory/4328-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral2/memory/4336-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4336-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x0009000000019cc0-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4328-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4328 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 2026-07-22_99958b13a09e41ad49110e2643f560d4_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 4336 wrote to memory of 4328 4336 2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-22_99958b13a09e41ad49110e2643f560d4_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4336 -
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:4328
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 94KB
- SHA256 a2db5533ec5a1530193bdba8235e3553787a38c939cb4c78d6964b9ed2bdfde2
- MD5 39c8b47f4da42942ee728609adceda39
- SHA1 1b8a41ee7c503372eb3f29f73e1037cb3755fdf1
- SHA512 0621ee738b18ebbc9531ef6692defb1125a30952ee5d388f08ad99a2c7dc2adbed6fa0130687ccbbafc5b1e4299d5aa2c690b6917b83355fed29315ad2ce64e9
- SSDEEP 768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJZ1Mcg/8:xj+VGMOtEvwDpjubwQEIiVmk99p
- TLSH T14F93CD786FE91672E3BBCAB5D5F641C2B935B8223D22980D40DA13450C23F56EDB1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH