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
19/05/2026, 14:37
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe
- Size 43KB
- Sample260519-ry949afs2t
- SHA256 235966d992491c4fc614427ef3ae93b4a6fb4fb3f68c3c543083b29fe87ea53b
- MD5 c693bee3253794f436523d9f7523b221
- SHA1 e661857c3aa57028b70aa5ca1ef41abf5900f853
- SHA512 c23dfbe2a892c100f01afeaffae609776f89633079d13b231a793a3f1bc096edf7af3ae9f068f296d88d119ba5bf0a679bdba3f443acd8c1b92a024275351ed5
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaJp:bgGYcA/53GAGgIvF76tn
- TLSH T1AF1354387FE62932D37BDFB586F651C6B975B8223D16980D40CA53844833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2080-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000600000000d34a-13.dat CryptoLocker_rule2 behavioral2/memory/1076-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1076-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1076 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 2026-05-19_c693bee3253794f436523d9f7523b221_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 2080 wrote to memory of 1076 2080 2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-19_c693bee3253794f436523d9f7523b221_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2080 -
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:1076
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 43KB
- SHA256 d50ffce8da7f03cca8be5d86a5996e8a04ac0c5f4009a76ec39b1742e799f775
- MD5 6e5080eb9fa27418899ffd332c5cb4fd
- SHA1 f70fbe6b847b5694ee4afa8b0611135c285526d9
- SHA512 bbc1978dd667188ab044a57e60f2365ed84ffe338097973d8524bce1580bbfb6d9840698bef0428fc30e80ff10555544a1d87fd34c785cdb7cc9358b30947342
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJfJYUaJEf:bgGYcA/53GAGgIvF76t6f
- TLSH T1CF1354387FE62932D37BDFB586F651C6B975B8223D16980D40CA53844833F66EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH