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
15/08/2026, 07:55
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe
- Size 1.0MB
- Sample260815-jsbeqssbne
- SHA256 065f92d9f8d881279d15666556d79d4199597784a854dd07d2fa1d823826c219
- MD5 1d948a026a1caf2a0537343ff9d45fe1
- SHA1 e217210a0d2c60f7eecd0fcca6a304982c508a77
- SHA512 10b571c519702592f30eff4f828ad466347a439b2a77614563c89446dca33b9e34957de351014dfb38502f7cc89629193e4e21acb94e6483676ad386d9cf2233
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqA:bGbvflT/ZFIjBzhxwOgXKarY1iBh
- TLSH T1372509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4512-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x0008000000019ce0-13.dat CryptoLocker_rule2 behavioral2/memory/2124-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2124-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2124 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 2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_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 4512 wrote to memory of 2124 4512 2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-15_1d948a026a1caf2a0537343ff9d45fe1_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512 -
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:2124
-
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 018bab4c15951878f2f653961304d980aa4a2bdb1bd2f3fce45172a850d5c041
- MD5 92d22d70b178bd44f5f9826173e6ef11
- SHA1 1b3d5f87ae64868f8f36a061bb444347921a8673
- SHA512 e25ff44d9b9bb827933fbe5dce9a1dfce2b596060ef82cd5b8b4d98a80177091e111d8b5319b498156fea446a7924d78fe9098cc96ebf417283102783bc101c2
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPq3:bGbvflT/ZFIjBzhxwOgXKarY1iBq
- TLSH T1982509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH