Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/07/2026, 11:45
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe
- Size 4.6MB
- Sample260718-nw8a4adw3x
- SHA256 564d18f258dd88817b4211a107009d39ff1a013a6530ab0f27610139b74a81cf
- MD5 208804ba9459bcc3d678d125a7af5d5f
- SHA1 61347d679f495b7e7b164def597400c6592648ae
- SHA512 0a43f479be0b0fe57b5f3a777b5372650ee253f51ec3b7bd811f53cb25bfb7c5c120f1c451489e6ec9e7064456927ed1f5172c4215093e356252618251f0aac4
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTi:w/ZFIjBzF/ZFIjBzPEUusi
- TLSH T18A363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3428-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b87d-13.dat CryptoLocker_rule2 behavioral2/memory/4644-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4644-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000d00000001b87d-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4644 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 2026-07-18_208804ba9459bcc3d678d125a7af5d5f_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 3428 wrote to memory of 4644 3428 2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-18_208804ba9459bcc3d678d125a7af5d5f_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3428 -
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:4644
-
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 c5dc9ea5c54642e21ae5ac89a298f67974bc0ec753f77a3bb277396cc991728f
- MD5 bd52a55f02d5a083699226abc2780ebe
- SHA1 5db1ba282785dadbf56ac7f02e573b41d561abe4
- SHA512 5a7acb77f3b69570acf7a2cf4e35c4745d8c2191131353f059815aa1b31c9c91861201a6dd5a65642b5f60c2e81e64e7d3cad3569128bcdbd1db45878c68422a
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTr:w/ZFIjBzF/ZFIjBzPEUusr
- TLSH T1D0363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH