Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/10/2026, 03:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe
Resource
win11ltsc2024-20260911-en
6 signatures
150 seconds
General
- Target 2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe
- Size 38KB
- Sample261024-ed1nvseb84
- SHA256 3533a5df3426865512e91dabdf08932ae62a6b89778685a36325115dce958488
- MD5 9767eb8a07867063a339e3e54259ef0e
- SHA1 6f88105bd86e5f6947193def97bee3bacc952afc
- SHA512 7babebe1e37d99b9adef2b9e7de04de7e5a61eb5fdfa068e1c6a0bd0ef2d7b0d02153e786aeccaaae92f60d473835318cb2524bf452d37da3c1fe4a58b73c355
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXA:bgGYcA/53GAGgIvFG
- TLSH T13A0384387FD62972D37BDF7586F691C6B936B8223D16880D54CA53844C33B62EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2584-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001b834-12.dat CryptoLocker_rule2 behavioral2/memory/2832-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2832-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2832 hasfj.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname hasfj.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain hasfj.exe - 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 2026-10-22_9767eb8a07867063a339e3e54259ef0e_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 2584 wrote to memory of 2832 2584 2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-22_9767eb8a07867063a339e3e54259ef0e_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2584 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
PID:2832
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 38KB
- SHA256 315032a538d88bf9721259d6e141d59447237ab82b97c9b7da7d5ad89f58024d
- MD5 2ff7084d3826878c0fd1165f578a5d11
- SHA1 61c6b53d41239ab7db754237202d2e12e9fc9d46
- SHA512 b4f54d76f2a21decc9493a8add85fbd9bc5dcc5ad0b9474c2fc44be7077b15b380310f74eaf501d9d514a029b8b754c94db3a9eee18758fb9969bf57f9665b33
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXD:bgGYcA/53GAGgIvF5
- TLSH T14A0384387FD62972D37BDF7586F691C6B936B8223D16880D54CA53844C33B62EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH