Analysis
- max time kernel
150s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
10/07/2026, 23:43
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe
- Size 41KB
- Sample260710-3qlbpsfv2p
- SHA256 77fc8ba32335d5426550efcb2e2a8ef9cb466ea73ce69a2fe140b4e40786b232
- MD5 e39ade4faab4efea4f7d1e0d6c46140a
- SHA1 94c60762170de81e78a5e2b6088ef8f602c6644a
- SHA512 a788ed3d7a7e8c0b795b4f8d634734536e9a7cca51e5919a1ca6f0282061c766b1093d41816501887593ad0c50c308c65044ab8cb85baccde05a36e36bb416a3
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCE:bgGYcA/53GAGgIvF5
- TLSH T1BD1375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F61EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2880-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0008000000024468-13.dat CryptoLocker_rule2 behavioral1/memory/4680-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4680-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Control Panel\International\Geo\Nation 2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4680 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 2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_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 2880 wrote to memory of 4680 2880 2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-10_e39ade4faab4efea4f7d1e0d6c46140a_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880 -
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:4680
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 41KB
- SHA256 1f513c4b164d8012c3d13abcb9b45f7c0b6753c6f48a9dc64887035d76cc93ee
- MD5 a71a00f9f0817668b37b9877f29161ab
- SHA1 11751cf591fcc350cb8d7a9af2cad0f5cc56d200
- SHA512 32085f8c47e359a47e72b729476ae217870b4f97ed94bfa0b61e12a26fd88b6bb7d0d110865c4fecbb2fe8e31084128401b0a12ad12f8b4ffeb2ec6bc0959d47
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCk:bgGYcA/53GAGgIvFh
- TLSH T1731375387FE62972E37BDFB586F691C67975B8223D16880D44CA53844833F61EC91A0E
- MD5 SHA1 SHA512 SSDEEP TLSH