Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
31/08/2026, 03:58
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe
- Size 56KB
- Sample260831-ejhegaee88
- SHA256 0e892c8da9f149714ef2564d77e0c7a588d38111a3e1d03d2473974e415bfe08
- MD5 d127d642807af768ea99eaf15855ca8a
- SHA1 783fec24f2bf182f9157fde0b2ea4e719804da93
- SHA512 a94ad899154d96bb679ccddfddd3dc37233d6eae944174f20bb1ce46d1ab87260d051993930899e202bb9544cbaf62e51c653787c7b6b852d56541bd2636e8e1
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uXADHAAHD+lt7:lj+VGMOtEvwDpjubwQDfj+lB
- TLSH T1DB4330396ED91572D3B7CAB5D5F785C2BA36B8233D21980E40CA23454C33F16EDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/5812-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/5812-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000300000002332c-14.dat CryptoLocker_rule2 behavioral1/memory/2636-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2636-20-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/5812-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/5812-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000300000002332c-14.dat CryptoLocker_set1 behavioral1/memory/2636-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2636-20-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/5812-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/5812-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000300000002332c-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2636-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2636-20-0x0000000000500000-0x0000000000510000-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-1-5-21-3053180483-1881419501-3594244048-1000\Control Panel\International\Geo\Nation 2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2636 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 2026-08-30_d127d642807af768ea99eaf15855ca8a_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 5812 wrote to memory of 2636 5812 2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-30_d127d642807af768ea99eaf15855ca8a_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5812 -
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:2636
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 56KB
- SHA256 ab932606ba681a7cabefb79780150700f6963251f420f966d2a76ad32886ea9a
- MD5 75fc803f6aceff8eedff90a2442d0297
- SHA1 a7c1395a49264fa76976bd727210055a882f6213
- SHA512 e2f978b1aefe6665edc88cebe5c6037709311b86a9a6a6fd781730f2ddec74dca58fc9db9011279bfcf2a452d0801bee3489f8575be72dfb901bc9796200b31e
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uXADHAAHD+lt6:lj+VGMOtEvwDpjubwQDfj+lk
- TLSH T16F4330396ED91572D3B7CAB5D5F785C2BA36B8233D21980E40CA23454C33F16EDA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH