Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
19/08/2026, 23:10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe
- Size 42KB
- Sample260819-25wkjsab64
- SHA256 39c67ff0116bfa371d8671d448f0ff1f7fd86a6add42f5505402e5d21949c87d
- MD5 286ec686f27804495bc634288a337ee6
- SHA1 86a6a163a6ec3e5b9e27987531e6532ec3842b09
- SHA512 681fe48c387c8ef14ad4734167b472d591ed3b6fcfb5c91ab306fde80fb8d762d36410e26921e3f4552fc6cbbff156f28567f3995e50b2eb5c45f666977bcbc1
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCz:bgGYcA/53GAGgIvFC
- TLSH T1A91374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/6772-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x00180000000118e0-13.dat CryptoLocker_rule2 behavioral2/memory/6332-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/6332-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 6332 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 2026-08-19_286ec686f27804495bc634288a337ee6_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 6772 wrote to memory of 6332 6772 2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_286ec686f27804495bc634288a337ee6_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6772 -
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:6332
-
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 b4fc13804fb2b7cac7f8219d3c001d846a1ebc826076206b99127119d31034f8
- MD5 4c21c9710b7c329d6032683c189a30b4
- SHA1 687944ac177f751a0138182ec37c56e1cf71d75f
- SHA512 235398296c3d681f29b684db663f2c1729e97d35bbec0f0baedb544c7b9bd203f16502a9c14536dadeb9870dc2574db172548abcfad89eab1e2ce67b37d733d8
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCq:bgGYcA/53GAGgIvFD
- TLSH T1E61374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F66DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH