Analysis
- max time kernel
148s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
16/05/2026, 08:22
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe
- Size 49KB
- Sample260516-j9vvpse15n
- SHA256 4c4c1f01d88bfaf00e9a420b105533753b38bc4a7a2c0d7de2d0a86597332d40
- MD5 118afd98151a2bc9020320e04c13a9af
- SHA1 953287d6d9865573d290c82cf66a97562793abc7
- SHA512 4f25b550d4711d3e8c4981b2062588540c8349b83d34fbabc61782f9958d063195236ba9b5510b4cbe826224dbb55e2797ac0afd857636c2c6487c13fc1373b5
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/R:bgGYcA/53GAGgIvF9v2Z+
- TLSH T1743344387FE56972E37BCFB586F691C6B935B8223C16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3900-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001d00000002b3a1-13.dat CryptoLocker_rule2 behavioral2/memory/4516-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4516-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4516 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 2026-05-16_118afd98151a2bc9020320e04c13a9af_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 3900 wrote to memory of 4516 3900 2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-16_118afd98151a2bc9020320e04c13a9af_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3900 -
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:4516
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 49KB
- SHA256 e61115264347e18a491ac2c149754a48e3a2595831bf8a2371f522db7e019fac
- MD5 8d499ad704d5012bb4dc13c21510042b
- SHA1 96bf5f2194768fe3ce5290444c442ee8a7ad2a24
- SHA512 cd0fa57d079b88c57bbdd9d27a403787fd595de2e69742fa1f0bf0c30352f7d7dbae5882dd6b85e5dd3a3fbc709eeec830269de52a21b38b0fe179e3b6c44109
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/b:bgGYcA/53GAGgIvF9v2ZA
- TLSH T1A13344387FE56972E37BCFB586F691C6B935B8223C16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH