Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/07/2026, 21:44
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe
Resource
win11ltsc2024-20260630-en
7 signatures
150 seconds
General
- Target 2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe
- Size 42KB
- Sample260704-1lhznset21
- SHA256 244879985e729976068df86a148c618bb7c513c371e0fb7c108d7cba5e49f803
- MD5 d97a8c75724b0443f1ab3d918391bbd0
- SHA1 7e0cbf108df992a512ad896376e8eb994e6af603
- SHA512 2373852af9c499739d2da23532af226e2da7e57adb4a6f4846591ee8fbbb2fda71dba173430667b4902f730ef3bd4194a1bb323800e918ce1a2ab1c915538a9b
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4Gr:lj+VGMOtEvwDpjoNMpBaGr
- TLSH T16A13C7366FC51932D2779B7195FB82C2BA66BC563D31990E918A33054C33B02EDA1E1F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2692-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2692-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00080000000245dc-14.dat CryptoLocker_rule2 behavioral1/memory/4976-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4976-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2692-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2692-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x00080000000245dc-14.dat CryptoLocker_set1 behavioral1/memory/4976-18-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/4976-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2692-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2692-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x00080000000245dc-14.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/4976-18-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/4976-26-0x0000000000500000-0x0000000000510000-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-1-5-21-540052884-2969440504-464782435-1000\Control Panel\International\Geo\Nation 2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4976 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 2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_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 2692 wrote to memory of 4976 2692 2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-04_d97a8c75724b0443f1ab3d918391bbd0_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692 -
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:4976
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 42KB
- SHA256 56a9daf2a42a49853da88e1ebce62b9692b51aa2280be1e58beb7be4841b80ac
- MD5 e8f668ea40971b4e3ae55d6c1045b960
- SHA1 baecd34030f85e93473586a5602ce2ffb2c06404
- SHA512 c20951ed973188d80a97c96d5b51103b10935384ef843c9fc9d6a57d54e22d33239be49491ac27dabac264f0fc886bcaab9720c5889cebedca2ffd8fe998250a
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4GE:lj+VGMOtEvwDpjoNMpBaGE
- TLSH T18413C7366FC51932D2779B7195FB82C2BA66BC563D31990E918A33054C33B02EDA1E1F
- MD5 SHA1 SHA512 SSDEEP TLSH