Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
08/09/2026, 15:56
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe
- Size 1.0MB
- Sample260908-tdcdlattf1
- SHA256 511ddc90b154867c5b953ff0be4c211eb9870800992abbf3fdf2d9073b8a9e1f
- MD5 710844dafe590d20c58fcebbd454aeac
- SHA1 d4bffa65da921dde528ea5ca3601739fc9f0430d
- SHA512 754d10abe549fc34aea68043ae33b9ac28e788b7902947bcd8f9f06e3d8dfea00cc7ca60f162274d6d4cea29d82e526f11a796875e50f91905c7d507596148a6
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqX:bGbvflT/ZFIjBzhxwOgXKarY1iB6
- TLSH T13F2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4116-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000700000001b884-13.dat CryptoLocker_rule2 behavioral2/memory/4600-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4600-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4600 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 2026-09-08_710844dafe590d20c58fcebbd454aeac_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 4116 wrote to memory of 4600 4116 2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-08_710844dafe590d20c58fcebbd454aeac_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4116 -
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:4600
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 1.0MB
- SHA256 dd2c975deaadd8dc334b50952409520442a30e9fe6526b3a20189e51e5ac5402
- MD5 327cdd9ba98b14908801cf0bf022a2c2
- SHA1 879ab8ad663645ba6d976be3345cb8787456548f
- SHA512 b43ed0c22a38d9b5df273f736b61a2c2fd13b874899753785671c573f434e27fdcb87fbb1627b71c76ecbbd6e3d345bb1c64be75153116d72e425ad28625f27c
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqd:bGbvflT/ZFIjBzhxwOgXKarY1iBc
- TLSH T18E2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH