Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
12/08/2026, 03:41
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe
- Size 1.0MB
- Sample260812-d852dshr2w
- SHA256 57997c0ce494cc4794e7cf21f346b2320f0b02294014d34d929893ef93c86239
- MD5 4bd763057f33295fa5e97d241f4109c2
- SHA1 d4679f5116f1a9ba3e6c161d0b1b54eaff8bc9c7
- SHA512 8a6fdf84a4b77c363a53311b430cb6a4d89fbe48a698d3f9c7cf06dc73e075e6620cea416b9e0a0215c376e15c54a4df5a3b9fb40eea121a1c60f1a0e90336f3
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqc:bGbvflT/ZFIjBzhxwOgXKarY1iBl
- TLSH T1472509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2196-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000016cdc-13.dat CryptoLocker_rule2 behavioral2/memory/1724-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1724-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1724 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 2026-08-12_4bd763057f33295fa5e97d241f4109c2_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 2196 wrote to memory of 1724 2196 2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-12_4bd763057f33295fa5e97d241f4109c2_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196 -
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:1724
-
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 6b062e587681c19ccfa9d6c903fc66e8af11de7dc3c32d3fd7903b01ac619271
- MD5 14159f66f89045f5e05323fa1c1c0570
- SHA1 294953b451cf7162c210ccc853675d5b3078b337
- SHA512 badeb6e53e8c0206de03170b1b96bddef184a22067ddb6563eb1bbec7c9845e10d1f10ae38d242dfe182d1f817664e40346d1b6ce844bb0e107dfb21b6277316
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq0:bGbvflT/ZFIjBzhxwOgXKarY1iB1
- TLSH T1882509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH