Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260618-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/06/2026, 02:22
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe
Resource
win11ltsc2024-20260618-en
6 signatures
150 seconds
General
- Target 2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe
- Size 4.6MB
- Sample260629-ctx7kabs31
- SHA256 ee1d3b0fda483fd4012e8efe328dc30f0f8f201aa67d9348e006db36de21637e
- MD5 d8ba8fc3493b1ef63b98f5fe81db2ad8
- SHA1 c7daafdde34734ebc5b4cb83edca93707ea46bbc
- SHA512 4ed48d3c2b733fb0f76e9269fc6834c584bf98f6f9340f40261bd8218a5767e693c08fd17779df7f9fcd830cfd6d73a72935a5e342ce176b5c1533965768444f
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTx:w/ZFIjBzF/ZFIjBzPEUusx
- TLSH T112263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2920-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000001b861-13.dat CryptoLocker_rule2 behavioral2/memory/1048-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1048-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000600000001b861-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 1048 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 2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_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 2920 wrote to memory of 1048 2920 2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-27_d8ba8fc3493b1ef63b98f5fe81db2ad8_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920 -
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:1048
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:2308
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 151e81fac8c42792648e70ee8dd99cb99d033531a8a1c1f384e64a160f9d9a71
- MD5 9e7c80b5294ad871608cb6077084954c
- SHA1 e9da19b954d0d3f0d1322e93ce7cacc523695db5
- SHA512 01fd088857cd938e6fac2d5cf5d1b272d598c4d9a52657265642b5081adb48b5364d71f2d23365bce5c2cbcb78c32ae334bef4e43ae1329c6b57b1cc083ad0ec
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTz:w/ZFIjBzF/ZFIjBzPEUusz
- TLSH T140263C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH