Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 04:19
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe
- Size 42KB
- Sample260802-ex2p9sch86
- SHA256 30d5cc8ffcee1c4764da5084c4f9f58ccaa048780410b21e61e29f8de931b2e5
- MD5 283610caac32d0d3029cc00964fbf645
- SHA1 ece970f4d8816baf2adf4829bad9ae112f37eab4
- SHA512 bade91178e7583f7b7671bbfcc7a9e9ee61ac64a1f41f5941c7a10b7905037475727baa835abaee56b2538d24f4183a8adf507df2339d5741918e726dfad6877
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCe:bgGYcA/53GAGgIvF/
- TLSH T1641374387BE62972E37BDFB586F691C27975B8223D16880D40CE53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2632-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c00000001af5c-13.dat CryptoLocker_rule2 behavioral2/memory/2316-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2316-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2316 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 2026-08-01_283610caac32d0d3029cc00964fbf645_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 2632 wrote to memory of 2316 2632 2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_283610caac32d0d3029cc00964fbf645_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2632 -
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:2316
-
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 c9640945e72363f26ce03a25b35fb329ad2a01d704e99f9364cd4b4fd10dfb5f
- MD5 ad1f862ffb302adc0f777ecbd125bf3e
- SHA1 e4ff175919e6c4a97f042f3ed9f3ce836418d67a
- SHA512 29c0715cc739aa5877448ffcf94f0be7964c0f9cea0e003977f14fd97d6e2ff2f3956c04eaaed4673cc58e34b01d2c8f0677d32acf5f7f3f2caa3fef5188e22e
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXC2:bgGYcA/53GAGgIvF/
- TLSH T1031374387FE62972E37BDFB586F691C27975B8223D16980D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH