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
20/07/2026, 22:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe
- Size 41KB
- Sample260720-1395gsfx3m
- SHA256 0bc1777e0c148024b38c481ca46a5dd6a194cbf49babec9e7b4902786bbb7b3f
- MD5 7202827f191f40220af78889f67eea79
- SHA1 f1ac534bf178afc10daab2239bec5d43cb52add9
- SHA512 93c1e9c3f45ca61c02fcb9039bf8a3d54747775cad8a63d37a7251986e94218694db8f54850527cfdf1b2dc3ce993654001ccd7cb7f45b010cafcf723a2a73be
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCRx:bgGYcA/53GAGgIvFkx
- TLSH T1E61374387FE62972E37BDFB586F691C27975B8223D16880D44CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3212-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/2276-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2276-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2276 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 2026-07-20_7202827f191f40220af78889f67eea79_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 3212 wrote to memory of 2276 3212 2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-20_7202827f191f40220af78889f67eea79_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3212 -
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:2276
-
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 be22585448244128fe769525fa6d746b02121f38c02b55fc38808d94a30d3f7b
- MD5 24a99c3bfd216781636a51da22c8f0e9
- SHA1 43001462ce2183d93c5e85501ebf52305d18a3f3
- SHA512 339e2f68dbe82f728efdf13e43fb8b13a5b6a5b584a94b03f8f376e6da0c4d52c934d626a2303e8401f20eda4903ae4a9bfea6a10f3b2b3c2f4170f60ada113a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCRI:bgGYcA/53GAGgIvFkI
- TLSH T10E1374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH