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
09/08/2026, 09:04
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe
- Size 42KB
- Sample260809-k1234axyhw
- SHA256 6b1e35bb706e752dd8d85be4bc17d4a57a07fe44c583c045df501164c4240ce6
- MD5 b80abced48d4a1225689ed434e3b3284
- SHA1 29049f20817eed29b7ee179d2aa4ac900aaa3194
- SHA512 63622ab79181aa3c0c8798e832ac652d26ff39851e6c019d5fd918878d3b79354910f74a277899e0aad19997befbdcaa352dc090a71708f9bc04f94662e18205
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXU:bgGYcA/53GAGgIvFB
- TLSH T1BC1374387BE62972E37BDFB586F691C67979B8223D16880D40CE53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2128-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b871-13.dat CryptoLocker_rule2 behavioral2/memory/2340-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2340-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2340 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 2026-08-09_b80abced48d4a1225689ed434e3b3284_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 2128 wrote to memory of 2340 2128 2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_b80abced48d4a1225689ed434e3b3284_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128 -
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:2340
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 1533c794a1dd09f2f99328cb64ebe9c457241903dfec224a484d10cc02715461
- MD5 5a7aafd7730835ea2f131f0f3771bd4b
- SHA1 0456f4a0d6295f48c24080abe343149266be72fb
- SHA512 abad488a8c5e6c4b9bbf37e8d8cfff5fa58790bc5bcbdf2980fa2635bbe979b88a389ca25b40787f30061c1ff04133a756fc9f43beb3a0714029d08d8017a848
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXp:bgGYcA/53GAGgIvFk
- TLSH T1E21373387BE62972E37BDFB586F691C27979B8223D16980D40CE53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH