Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/08/2026, 13:11
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe
- Size 52KB
- Sample260813-qe3qdsbb64
- SHA256 f1531c95b47c2db421984e96f2a0c774ab89db36537c8de40551e68d0668164b
- MD5 523cda74bd8fff91823df3eacfa2baa1
- SHA1 9b7ea7b091f2d302daab8a064686bca103c278e6
- SHA512 cbaad37d1203ebd9527314e72442af42c31324421f34e8a69c23970db6fe00e6e4af0dad5d4593cb94a8f8936e3e50c45ac2c61e5bc6584c60b7222f21be0294
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/Y:bgGYcA/53GAGgIvF9v2ZD
- TLSH T1C23312387BE56972E37BCFB586F691C2B935B8223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1512-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/2136-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2136-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2136 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 2026-08-13_523cda74bd8fff91823df3eacfa2baa1_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 1512 wrote to memory of 2136 1512 2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-13_523cda74bd8fff91823df3eacfa2baa1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1512 -
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:2136
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 52KB
- SHA256 d360063539275b910b6fd8cea91beba3208d10649b62bae8d285cb8f02eb3541
- MD5 4bd8ddc9fcc871082abe83b8dac0a277
- SHA1 997fcf9a09c7fbc802d61e7d4bfed7b098025385
- SHA512 58688df23fc1e15a1a297ea5234d76fa5e30f021af8cba82591ba85888f9839e0b1f37f02fc29042a723f2abbf9397bbd12500d0bb05100ad628f6abdf77580d
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/W:bgGYcA/53GAGgIvF9v2ZZ
- TLSH T10A3312387BE56972E37BCFB586F691C2B975B8223C16D80D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH