Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
08/09/2026, 06:48
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe
- Size 51KB
- Sample260908-hk86csde76
- SHA256 2fe1ff45453ff88486199660400265b1bdf6344805e57a4c2631069367c1e1d9
- MD5 c05cad734a70ab260f587ca4b6fde153
- SHA1 7f80963063087b95b958cb4874c06fc9e78fe832
- SHA512 33923f74931f6c2aae38172bb21034fe8db2541bd2b2159516d70e955d507f5bd4be3d3cad20a0c056d67239ff326de40db411170cd1379ebdfe9c94f52295f7
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBC1SleKAP2bz+9D:bIDOw9a0DwitDZ0leBCgD
- TLSH T1D033CA3C6EE56472D3BBDAB999F651C6B834B4223E155C0E44CB43850C22F27FDA261E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2356-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0013000000016db3-12.dat CryptoLocker_rule2 behavioral2/memory/3440-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3440-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3440 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 2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2356 wrote to memory of 3440 2356 2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-07_c05cad734a70ab260f587ca4b6fde153_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356 -
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:3440
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 51KB
- SHA256 6106df727335828f6a6f5168d37e419f865d2f3d03b864036ba908c1ab22caca
- MD5 c1613655671b5909e019b465fa410152
- SHA1 7ef95c506c70563cfdda585737e69c7c7dea26ab
- SHA512 9aeeda0e71feab36afbfd10c37d13795328fb38a09fd73e0549026e40263ccd2ad6969b9f1cc2b171eb2aa908ad7a24fab2dcfc0bea91a875fc63357f135bcd3
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBC1SleKAP2bz+9Q:bIDOw9a0DwitDZ0leBCgQ
- TLSH T15E33CA3C6EE55472D3BBDAB999F651C6B834B4223E155C0E44CB43850C22F27FDA261E
- MD5 SHA1 SHA512 SSDEEP TLSH