Analysis
- max time kernel
150s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
18/07/2026, 08:39
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe
- Size 47KB
- Sample260718-kkmcpsd18p
- SHA256 683e7348426a7e4c09dd427f31d496f49dbeca65f86ec8ce50ebf7cfee37ec0c
- MD5 1dad3f7ce3d896807c46cac76b709a75
- SHA1 f47641976cb779ab9ada48c2795a7cdcd33c9645
- SHA512 5d996f4aadfb989ef1fe7dfaa143c3fc5621a13fd83ba4d29aa0c085f43b4b098d01e6f9289ff902d806910a37a06f041327fc954497eef2ba0f86ce21e347f4
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuy0:bgGYcA/53GAGgIvF7Eky0
- TLSH T15C2322387FE52932E37BDFB586F691C6B975B8223D16980D40CA43444833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3036-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0006000000006977-13.dat CryptoLocker_rule2 behavioral2/memory/4908-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4908-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4908 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 2026-07-18_1dad3f7ce3d896807c46cac76b709a75_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 3036 wrote to memory of 4908 3036 2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-18_1dad3f7ce3d896807c46cac76b709a75_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036 -
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:4908
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 47KB
- SHA256 06ebc75961f1d477db827e2b7b3e1f923b1e554292f9a2627960568077831a1b
- MD5 0cffa1b5b8f1d6dd43f95e30b81e855f
- SHA1 f308136020b64cababc0c053166f32f21ffabcd9
- SHA512 8a2d56512420a9195b125dbd2d2dedad460db7f5195eddb0f33bdef25efbdfb383883b8955c2195094150a8e74bea2d096e8cde9bc7409d34277d2e2dddce8cf
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuyd:bgGYcA/53GAGgIvF7Ekyd
- TLSH T1C12322387FE52932E37BDFB586F691C67975B8223D16980D40CA43444833F65ECA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH