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
30/07/2026, 07:51
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe
- Size 45KB
- Sample260730-jp7c1axtdx
- SHA256 0380ba36c7bf0d590b3bcdba927602839962f197db37c76160b46e5dc1a9e76d
- MD5 745888f58b1eda580c1c003f36505a31
- SHA1 2bd557cba3a5e3f555016e4ee6d8f020c701cfee
- SHA512 1b20642b2d0211d3d08fee8545f8fdc9f5167037d6ddc735009cada15ee624b9f2363457e5aa8ab0bdf7fae5a828d1382f98c90ae28439f5bf02d1009a9f939c
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTc:bgGYcA/53GAGgIvF9
- TLSH T1C62355387FE62972E37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4544-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000e00000001c529-13.dat CryptoLocker_rule2 behavioral2/memory/3132-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3132-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3132 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 hasfj.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4544 wrote to memory of 3132 4544 2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-30_745888f58b1eda580c1c003f36505a31_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4544 -
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:3132
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 45KB
- SHA256 09df7bdaf33eae4ff54280725c1b3c31794053fe0a22eba2906cefb478530c70
- MD5 89383a587472025696fc7e50835e2929
- SHA1 619ce17f732a525e5403b6906b48ec0a1d13dc7e
- SHA512 d453f77ba9e02d2ec25e5f34defd758d5e9c816924bf76c2be338241cc296f6c364f1ca156b3935856550441e872ce824d11751d05794fb231ac41fb5c943798
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCTj:bgGYcA/53GAGgIvFW
- TLSH T1FB2355387FE62972E37BDF7586F691C6B975B8223D16980D40CA43444833F66DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH