Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/08/2026, 14:19
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe
- Size 56KB
- Sample260820-rmyl3syeje
- SHA256 a671ea9d01b1ed0af284ca92f4541ef416daa507d5b292d6462296c9abeb7fa2
- MD5 e07369b37f7b0ddfc90fcafa93dd83a9
- SHA1 9977ad14c069d66142b68db7c83dbcd571caf4d7
- SHA512 6441dbee17da126e75d14030ea1b733490fbc731a25bb1d395084944db72eec6cae5c70c32d7c15974cc0ab86c48e9b8d9a6a33ecb402a44f7a5c99751c6c84e
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4UsCOTcbJoICeAQ/z/eOCcLA7bZkSH:bIDOw9a0DwitDkvmoIO0/iaA7bZkSH
- TLSH T19C43653C6EE56972D3BBDAB6D9F651C7B930B4123A155C0E40CB43850C23F27ADA261E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4332-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/3368-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3368-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3368 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 2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_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 4332 wrote to memory of 3368 4332 2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_e07369b37f7b0ddfc90fcafa93dd83a9_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4332 -
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:3368
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 57KB
- SHA256 6e66d155bbaca8367939fe353c75d0a87d7251d677cd3a4a3f1ef01f1318cab4
- MD5 75576c3982feba96b81a9d7a95d54afc
- SHA1 a53e45a2fe1b3e965404ae5a049e66f4168b562f
- SHA512 5b2c6258f83295efd7f8bcfa1597190721e873310e3b526f104855e45554cff35ad9d5c5392475048861249dff7a9c4713e6772ba62e331099d791b0069c6158
- SSDEEP 768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4UsCOTcbJoICeAQ/z/eOCcLA7bZkSO:bIDOw9a0DwitDkvmoIO0/iaA7bZkSO
- TLSH T15343653C6EE56972D3BBDAB6D9F651C7B930B4123A155C0E40CB43850C23F27ADA261E
- MD5 SHA1 SHA512 SSDEEP TLSH