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
01/08/2026, 05:09
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe
- Size 45KB
- Sample260801-ftgrcsycre
- SHA256 7d1398c83d33766408177e42f92aa4e3cdfd59ba06a5b5902b3ee4a5eac03b93
- MD5 678e9c6086ec8b114188c23587844956
- SHA1 578f91f9df4ec1239f0af2626713f6db96da92bf
- SHA512 599b81f538c5017fe33cefeca4a478918342785bb18536de4701c38a72c8501f7509a42e7bab0ade00cce9f0411ea57252000a7146fdb0e6670e474cee521838
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCT3:bgGYcA/53GAGgIvF6
- TLSH T1172355387FE62972E37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1420-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d000000016cdc-13.dat CryptoLocker_rule2 behavioral2/memory/3484-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3484-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3484 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_678e9c6086ec8b114188c23587844956_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 1420 wrote to memory of 3484 1420 2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-01_678e9c6086ec8b114188c23587844956_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1420 -
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:3484
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 46KB
- SHA256 cacbdbf759fce4893a26f8f27277e12ea8405fb0a34c3bdaf676e8f7ff9bcd8b
- MD5 9d3db4717dd5e6df5207a9a1bc1b0642
- SHA1 01fcaa990ed783ee741129dd053e4149a3da2fac
- SHA512 b48d6fcf08aa4ce32f37f6b3eb510f07c1321b36127ca329c17b5b30404220f5674c8c1714f346deda88b1a92210ffda20f63a83adec61dca556647216ee3c80
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTD:bgGYcA/53GAGgIvFO
- TLSH T1442355387FE62972E37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH