Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
25/08/2026, 14:08
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe
- Size 46KB
- Sample260825-rf14matckc
- SHA256 9b21556c04b449a73e7f256c217aeec1f1da8c9bb5665ac31f30fb9c7ad75dbd
- MD5 47e949a261313e3ecbf679ce31f182ff
- SHA1 6be9d04fa751a158d63226095fde29278ca6a093
- SHA512 1def19c9d78707bc037d36b716205926b2d702b8f289f09f7628a4031a90fe07de05dc5550f34b4825026ecf3a8a8a51348bc55d1af71387b985ad7ae4c8b9e6
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ163:bgGYcA/53GAGgIvFW16
- TLSH T1DF2344387FE62932D37BDFB586F691C6B93578223D16980D40DA43444833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1608-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001b890-13.dat CryptoLocker_rule2 behavioral2/memory/3556-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3556-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3556 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 2026-08-24_47e949a261313e3ecbf679ce31f182ff_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 1608 wrote to memory of 3556 1608 2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_47e949a261313e3ecbf679ce31f182ff_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1608 -
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:3556
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 46KB
- SHA256 1e18fe478a6d6f28f9d2b3b14791f65900de7f0fa4f9874e593107369f1bb4c8
- MD5 1006d24c8e574bfe6973b4528789c3ec
- SHA1 0d0175ff0dc75c7776ce7799471b97e8b7ec4f81
- SHA512 fc59573f04398032ed5413833873b5d24dc77ec03ebe0180714dc1c110d569a727a8160d64b93461eabbd0ae215db461e4c88c093eeb4e9832633773dac26a43
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXQ16b:bgGYcA/53GAGgIvFW12
- TLSH T17E2344387FE62932E37BDFB586F691C6B93578223D16980D40DA43444833F66DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH