Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
05/09/2026, 14:36
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe
- Size 34KB
- Sample260905-ryxtxsed83
- SHA256 041a58fec7dfe1207aa50b03df9ab861b6c75b1444acda8c32113534eaa8a7c6
- MD5 34562dfd92b3b71ec8a10df4c16af391
- SHA1 90ce917cab6cd48deae2579571672a09b40b65e8
- SHA512 f56bff6f0de4817b9090def1dfc2cd62068bf3a28445552fa0474e7de323934a08825215da99da2f6162248dddd32350d8024f09c4c34907a7b5bcf0d656fe32
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/Xfa4mi2CR0p8EVr4+zH:bIDOw9UiaCHfjnE0Sfa7ilR0p9V1zH
- TLSH T1C5F283386EE56872D2B7AB7595F392C6EC74B8123E25484E94CF63850932F17FC6120D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/memory/4820-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0007000000011394-13.dat CryptoLocker_rule2 behavioral2/memory/2884-25-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2884 lossy.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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4820 wrote to memory of 2884 4820 2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-04_34562dfd92b3b71ec8a10df4c16af391_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2884
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 34KB
- SHA256 ff4eaa470e12c26133ce0e0b16ba8b0448ca03baf31f1e9bfe7cf9e22bfd9690
- MD5 5bc553d8149532eee89b679a52fc1106
- SHA1 58d24ecd4cb8f8d8d899c04a5f7207202afcf154
- SHA512 a3f6078546014a173cf34c48eeebeb842475c867f4f0a8760bda771085e0381b69ce4339faf134ef2d56eb9779b4c9b60d5c0ddac7f4d347cbcd2737e9b0f3d0
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/Xfa4mi2CR0p8EVr4+za:bIDOw9UiaCHfjnE0Sfa7ilR0p9V1za
- TLSH T18CF2833C6EE56872E2B7AB7595F391C6AC7478123E25480E94CF63850932F17FC6160E
- MD5 SHA1 SHA512 SSDEEP TLSH