Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
24/04/2026, 09:40
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe
Resource
win11-20260130-en
6 signatures
150 seconds
General
- Target 2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe
- Size 75KB
- Sample260424-lnjawses3t
- SHA256 54e28cab544121cc53cbb2603e26991507d73468f723fa2607dbd850b8152847
- MD5 1da137a5b022f80a0d2d1ebc5a2bb50e
- SHA1 f6892a8628b96d4db677f8a0f5f213116afa0044
- SHA512 f6def419895a3424e8bf9aa4dfd42b4d6a0ccc217b5b6ee8f64bec7dfa10c5ca14d547d942f835daeae1b51a45295f0ee2fa2f56f7eda04bed9af761725a5225
- SSDEEP 1536:vj+jsMQMOtEvwDpj5HczerLO04BGc189Y0RxKFgzkiL:vCjsIOtEvwDpj5HGWY0RkfE
- TLSH T16E730E396FD91672E37BDAB5CAF691C6BA75B4223C12980D40CA43450C33F56EDA1E0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000241aa-12.dat CryptoLocker_rule2 - Custom signatureDetection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000241aa-12.dat CryptoLocker_set1 - 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-1-5-21-745935970-1373868228-562466063-1000\Control Panel\International\Geo\Nation 2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 5024 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 misid.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4020 wrote to memory of 5024 4020 2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-24_1da137a5b022f80a0d2d1ebc5a2bb50e_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4020 -
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:5024
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 75KB
- SHA256 996f3e9339c72c7f8930654d7b84afd4b662b2237010a70d5aac40a1bc5f05e8
- MD5 e75a33d5fddb9a683a1e8ed836e08cdb
- SHA1 403ca780af750cb638b3ddfd7943f7a4effffbcf
- SHA512 b1f012d3d3e9f9aee92e59d1a40ba2bbf0aa6d9c5edcbe25a6d215fd4fb289ecfe7096dacb5607d087b24270d1c360eb261df7fdc3954b1d58f822a58dd33974
- SSDEEP 1536:vj+jsMQMOtEvwDpj5HczerLO04BGc189Y0RxKFgzkiG:vCjsIOtEvwDpj5HGWY0Rkft
- TLSH T1B8730E396FD91672E37BDAB5CAF691C6BA75B4223C12980D40CA43450C33F56EDA1E0E
- MD5 SHA1 SHA512 SSDEEP TLSH