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
24/08/2026, 12:18
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe
- Size 28KB
- Sample260824-pgzabaxejf
- SHA256 4a6359d22fde5f566652b2cea6f2589b64ad0065459c8dd0533ad5d78f37eb2c
- MD5 4c8292b28cd933a9f7ce8a831b25ec99
- SHA1 3f1288e6c958cc2f099d670be35c62c192a28086
- SHA512 5bddfd5e5632ede758a74bc96a0d32b0e12e41f2bac355c72177efe141249aa5b5243abea4c4939f103d050271ef3b8b45eb5309e8ec8122637b48b15cb2afd3
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rXh7:bIDOw9UiaCHfjnE0S2kH9rXN
- TLSH T143D2E739BEE96C72E177BB7454F39282A8757D413A24498EA8CF73980A31F62BC1110D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4636-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00080000000068df-13.dat CryptoLocker_rule2 behavioral2/memory/4852-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4852-19-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4852 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 2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_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 4636 wrote to memory of 4852 4636 2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-23_4c8292b28cd933a9f7ce8a831b25ec99_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4636 -
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:4852
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 28KB
- SHA256 1b0449c0c96e23ccca13a74833e795e3891f5722b96f8cf6bcf4e197429f5743
- MD5 9e26cc07087083c09fd6c2258879b042
- SHA1 c9935b38b21cc20adf9ed29f1110097048da0b1c
- SHA512 f535db83332377663bb9c019da1338cafdd5071f76f0733f64ac32362ed1ed32a83f4845ae25d7ad53f9398418f3b25bf644d98a7ee4e8a47a98348e2dbe3475
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/X2kH9rXhN:bIDOw9UiaCHfjnE0S2kH9rXr
- TLSH T160D2E739BEE96C72E177BB7454F39282A8757D513A28494EA8CF73980A31F62FC1110D
- MD5 SHA1 SHA512 SSDEEP TLSH