Analysis
- max time kernel
150s - max time network
156s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 00:52
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe
- Size 3.4MB
- Sample260810-a73cbsgl5t
- SHA256 35c30a8aaca4602da63c29afa4f3a90760dcdbc456997b6d6dfe54dcf662dced
- MD5 83948266832f336264dcfc18ae013e9d
- SHA1 17594c4c68c3bdbfc298f118b182b96852a10b57
- SHA512 0403006cd6058b4b19d3537792cc6e58c4597a1f520341af9ec8b922ccc8ead513e97f827389ec580be1696a79a5d089f24ffb82e20e2abb9c693631b601250a
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdf3:uR/ZFIjBzldUfs/ZFIjBz7jSZD6
- TLSH T11FF55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/5676-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c48a-13.dat CryptoLocker_rule2 behavioral2/memory/5088-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/5088-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000e00000001c48a-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 5088 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 2026-08-10_83948266832f336264dcfc18ae013e9d_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 5676 wrote to memory of 5088 5676 2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-10_83948266832f336264dcfc18ae013e9d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5676 -
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:5088
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 3.4MB
- SHA256 6d0311a5df7c2911a924fa71b1e6e5d4ca065b082ec3d7d681dce9c050c98803
- MD5 d274a715ad6d37a6f3e294b2401aa75d
- SHA1 1ed11ad25f8afe25ee7c1ff8ba8039535d822c0d
- SHA512 b9270e66df9a994a96b468de07b2aaf80e2c373bd5cd60c0c90eab76b2e4918838064f65e2b6de455a22695a17f068df168c5c79c6ded4b38b5fd09e650f17e2
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfM:uR/ZFIjBzldUfs/ZFIjBz7jSZDd
- TLSH T161F55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH