Analysis
- max time kernel
150s - max time network
148s - 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, 04:28
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe
- Size 25KB
- Sample260825-e35zwafh53
- SHA256 11f0facbc9510afdb5875b92076337b9353c1e28152e1d2e17212d5463402f29
- MD5 acd3508c49d4c4f42998df3c200643f3
- SHA1 46153ce9e2c0b76b88c4f04d472e177413991572
- SHA512 3b88adbf7238716b14b5a4cc5a8c65f779759c7c0518dce1c029bcb9d4fb0db8641340f0590de4b0cbcd0916e8d063e69e92073197574f3e89b02144387df5d2
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUz:bA74zYcgT/Ekd0ryfj6
- TLSH T149C23A26B7677C91D0591EB425FBE011797FBC643B38498FBCDE77ACEAB1191A002482
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4520-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000500000000053e-13.dat CryptoLocker_rule2 behavioral2/memory/4160-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4160-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4160 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 2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4520 wrote to memory of 4160 4520 2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-24_acd3508c49d4c4f42998df3c200643f3_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4520 -
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:4160
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 25KB
- SHA256 feb57c715294b5cdcbdc5d9472eb9713190aff1e2ad44fe250f845352604974d
- MD5 812f0dcfbe95e2f279f45ec778987da3
- SHA1 73790be4d076e04cdf67977bf05e0e9009277f97
- SHA512 38cced07cc299043e8c3762ada946e0486aa6b92faf266c5f344d33dfd541b8df04cce57412e14454b4252a17da66c2dcd0aef5251ab50ed8756727d4c654c5f
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUlg:bA74zYcgT/Ekd0ryfjIg
- TLSH T10AC24B26B7677C51D0595EB425FBE011797FBC603B38498FBCCE77ACEAB1291A402482
- MD5 SHA1 SHA512 SSDEEP TLSH