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
20/08/2026, 03:06
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe
- Size 42KB
- Sample260820-dl53wabb49
- SHA256 2606be2316ff1ae95c164e3c5dc8b0a18e24419832cffa20d3b56e4c52080d35
- MD5 85bdf8125ed6699b453e8aaef7d259d1
- SHA1 6905ac6a08a0505561363ec58036b89aa15cbba4
- SHA512 18646e022bc4f13a0b00e3ec1c009ea017db753d8664941d40610a7b235f4fa0c3fe81d6b0c568733590567257ff9c694e13de758165ff12a00f8b879472cabf
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC8:bgGYcA/53GAGgIvFR
- TLSH T17F1373387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2600-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000016cdf-13.dat CryptoLocker_rule2 behavioral2/memory/4892-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4892-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4892 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 2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_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 2600 wrote to memory of 4892 2600 2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_85bdf8125ed6699b453e8aaef7d259d1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600 -
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:4892
-
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 641ec44852f40659c9fb37e119493378206b6e5bcde575ab4e07aef8abf89869
- MD5 230f937f97d7208f3ac75673b68986f0
- SHA1 b038ed85757d7b50b92ca16162230f3de208083b
- SHA512 b0fd56b74cbc3c04e7b8b27ae891d5b679447e1de70a811b2269f7cc4cf6d60d521509a9855a087c7fe7c5a15eb9eb03643b03cd91aaf8873e86a4b25b868ee0
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCW:bgGYcA/53GAGgIvFf
- TLSH T1271374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F66DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH