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
09/08/2026, 10:15
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe
- Size 42KB
- Sample260809-map2ysdm5z
- SHA256 883da4792daee4f4adff975426daf9b6292a4633fe28e62ff73f1b1a3678cea1
- MD5 40c18130f044bdeb492e91f8b12ae0a2
- SHA1 37143c394e520bf93d29339b7d580722a3798c4a
- SHA512 4636e239686674a978d201904810cd2e170757adb6e56974c8d1db2b270809f091f43920d227120bab15e0fc193611f13f98c309a72ae3bdf5c7cf62da1f004e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCMa:bgGYcA/53GAGgIvF2
- TLSH T1DC1374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F65DC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2420-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000016cdf-13.dat CryptoLocker_rule2 behavioral2/memory/5288-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5288-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5288 hasfj.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 2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2420 wrote to memory of 5288 2420 2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_40c18130f044bdeb492e91f8b12ae0a2_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5288
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 48453a2ec9f69f1e74fffbabbecf5a43d4f17b69d7e3232e7c616a798232779f
- MD5 bd2d73716baccff32eeecd8cb71145f6
- SHA1 20ca3ff21b47032c232fc191bcb8d51bef8dcaaa
- SHA512 64542c557b9fdfcca2be0ad9186acc7461cfadc0876d3d5a8c078d058492e84f8ca1806348f974c2e8e49d1933a35b094f307ee79b7f66b00fd531926af9f385
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCMK:bgGYcA/53GAGgIvFG
- TLSH T16A1374387FE62972E37BDFB586F691C27975B8223D16980D40CA53844833F66DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH