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
19/07/2026, 04:27
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe
- Size 4.6MB
- Sample260719-e24qesbx3n
- SHA256 530a113bf8802814fd264451d1ee50f76b56812422f43521ce57ec6fffe2716f
- MD5 0385a9b39a813559d545bcf74eda9916
- SHA1 7cf4b4e5d3aabb400316fc4ca340a6e5089f2f9c
- SHA512 e9c5c8a80b2f65e3591563b71156b0139d3c97cd1886b585b3b77d6f6d3b6c39def6ad6a1564048f0e3a4023fbac5c7f9bb55c5e0d0843d75ae53d62fdc31b8d
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT9:w/ZFIjBzF/ZFIjBzPEUus9
- TLSH T1FD263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2760-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/3632-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3632-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000a000000011390-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 3632 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 2026-07-19_0385a9b39a813559d545bcf74eda9916_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 2760 wrote to memory of 3632 2760 2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-19_0385a9b39a813559d545bcf74eda9916_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760 -
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:3632
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 88b94b469af7af90176fedcc95a411a82828517bc05fff67d60cbd3ae2dc57f4
- MD5 e3865671ecc8134d0ae45ccfcafb5c40
- SHA1 bbf95f9bec75de84b6cb4f5574db72730ec0ade7
- SHA512 aa74304756be54a45bf9847a51a2b803ff099a2bfb1fc2e897f96a57e09bbbfcb71135cf9fbdd1f642e0033d67b6e2d9c50be7d90830f1673f14db9f2cf4a5d0
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTl:w/ZFIjBzF/ZFIjBzPEUusl
- TLSH T192263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH