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
21/08/2026, 04:30
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe
- Size 42KB
- Sample260821-e5bttaw1a1
- SHA256 189a009efe394e6bcd6e8534410cd4af739c7d496942e44df1e87841b6c6479b
- MD5 5f822b4b472c20b993359cd72d7b5204
- SHA1 7f2ca5a1b24b4650f50397c7dba25f96395ac49f
- SHA512 8264644fb2735341c49357edab4ea2da2be92a1731810f0d52ba007ac60a18062af7d42a3ade7cd18b91aa87c836444c73f7120a78d7c44d7a40d8017ee00d5c
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqdn:bdDOw9Uiaw8fjR0STX73OBqgazTD1Y
- TLSH T1921342387EE56972E37BEB7585F791C6B874B4223D15980E84CB53440833F62EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x0008000000016b4d-13.dat CryptoLocker_rule2 behavioral2/memory/4112-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 252 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 2026-08-21_5f822b4b472c20b993359cd72d7b5204_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 4112 wrote to memory of 252 4112 2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_5f822b4b472c20b993359cd72d7b5204_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4112 -
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:252
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 42KB
- SHA256 dbfea338d0ab51d4c4ac7b465b250fcadd41aaa2ef9cec0925d7af10877f7d3c
- MD5 21505c73ed8c18cb9f8919140e63af60
- SHA1 0deed0703a85a2c6249d9fdcecccf963b137a9ca
- SHA512 174e716374ed9bb77b49d8bb29627f49f7ee7b97d17a3c4574bcf69f1bbd3f2163ebb777388c9314b7ea2d0fb0b43820cd2bb202cc51e7d7539795f3d4d76446
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqd9:bdDOw9Uiaw8fjR0STX73OBqgazTD12
- TLSH T16E1342387EE56972E37BEB7585F791C6B874B4223D15980E84CB53440833F62EDA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH