Analysis
- max time kernel
151s - max time network
152s - 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, 04:12
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe
- Size 42KB
- Sample260809-esjc5azerd
- SHA256 40efb4d061f4b8c2d02848cf95410b03a3b8f1ee04e5ec7f42f34161a9fada1e
- MD5 2c797fdae7184cb5b525dd229495d721
- SHA1 adb1b7056665bc6848e2a6572e2fb23e7ba2cc86
- SHA512 135cbe102d769c941f68c1b413f26a453478674a7356bc583fd857ecd7939fee903c9bbb3a85ebe9098e14aa2b122ddd2f66e3ce782af390dd93e70b221b25ec
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXR:bgGYcA/53GAGgIvFU
- TLSH T1D31374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4364-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000016ce7-13.dat CryptoLocker_rule2 behavioral2/memory/4988-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4988-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4988 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_2c797fdae7184cb5b525dd229495d721_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 4364 wrote to memory of 4988 4364 2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_2c797fdae7184cb5b525dd229495d721_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4364 -
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:4988
-
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 e7ad24dad01c480459476056a7e69504ed5f4311709940908cbd6f7ec80df6c8
- MD5 8c3d615e50f925691b2bebec1724a7a5
- SHA1 319dd9946a4e9d1b6ab345f82062deadb58ffa61
- SHA512 13bad4570ebe6bf66088bd4d655d7a8c51bd568aed538746986a65941b596f0f9743da9a98c7095c440282ebd46d302f1e8ae9f5e05a53622781ea0b10574f06
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXJ:bgGYcA/53GAGgIvF0
- TLSH T1A11374387FE62972E37BDFB586F691C67975B8223D16880D40CA53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH