Analysis
- max time kernel
150s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
24/05/2026, 23:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe
- Size 50KB
- Sample260524-3dblqsct9w
- SHA256 90f51b86d0e79a4555c594bc9c459f1e44d2be492f176e8e6241b4fdc9517e0b
- MD5 e659d92695d25b0ff359b1981a936e2b
- SHA1 a9e701e107369d4be1227f7eec5786ebfbdebc9b
- SHA512 8c50b1aa2704eb509d5dbc61a27e8de559bae92661d6ba857f47ac2256a49d56d8dc87ca16f0875606971366a3ec1ef638b8aca781cb25bf668897bef9045347
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/2:bgGYcA/53GAGgIvF9v2ZJ
- TLSH T17D3333387FE56972E37BCFB586F691C2B935B8223D16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Custom signatureDetection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1652-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x001f00000002b2a8-13.dat CryptoLocker_rule2 behavioral2/memory/2384-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2384-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2384 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 2026-05-24_e659d92695d25b0ff359b1981a936e2b_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 1652 wrote to memory of 2384 1652 2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-24_e659d92695d25b0ff359b1981a936e2b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652 -
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:2384
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 50KB
- SHA256 8bc280cc28537a2c45cf53e29409780bce657f2ffc07612d72f8db128b8c0bbd
- MD5 207693a1b3c4f430ea7b98c107b147d3
- SHA1 d60684c10edf87cfbc0ac83d7843053d9f34dae5
- SHA512 e285864b8ee6abdd230869a1a5139c49ae215fb527fe862204a3c79715e306336447cdf3a505dc6dfc7fd28e52c42c946f5d2a8ee71dc31521471e6e6fcef815
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCAzr2ZEXIK/i:bgGYcA/53GAGgIvF9v2Z9
- TLSH T1E13333387FE56972E37BCFB586F691C6B935B8223C16980D40DA43844833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH