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
11/07/2026, 00:59
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe
- Size 1.0MB
- Sample260711-bccc4ah13p
- SHA256 0776abd444f523a0826d276dd027cebb579bc7b9a55a03912fb0d66a4ecfd742
- MD5 1365542caf03b7cd9b13bba82690c71b
- SHA1 48f0fb0a1115624e602bcd707450bbf66fe13cea
- SHA512 66fa1aea188ce196eb18de8c394bb6d41511e7daf20b5630b948053349651d2a2a7a953d0cc010e13dd067e42d4b9297587f8235763a1ff606334088c2ce3dd2
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqu:bGbvflT/ZFIjBzhxwOgXKarY1iBT
- TLSH T1962519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4396-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/4916-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4916-20-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 4916 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_1365542caf03b7cd9b13bba82690c71b_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 4396 wrote to memory of 4916 4396 2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-10_1365542caf03b7cd9b13bba82690c71b_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396 -
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:4916
-
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 4b16d4f5244636e0a95c583965b6fddbcbc9a6be2f1e1ad956f11a556ed5452d
- MD5 bf1656fe72cc7eb7ba5dfd60a9ddadcd
- SHA1 1bfe24110cf287c9e409c13638d9fc971dea3ee9
- SHA512 c5a41cb8e5bc6c7d2798ccbb8f352b2a37b1c7c5c0e462301c25f9f554f6ac9afcb033233a61318f6a09d2a4712257e1c624a9343c42fdaede19fd8cf829c33a
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqr:bGbvflT/ZFIjBzhxwOgXKarY1iBu
- TLSH T1B02519BE74972645FE624C307FECF660DB57287ACB6BDAF24595A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH