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
09/08/2026, 02:43
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe
- Size 1.0MB
- Sample260809-c7ra6syema
- SHA256 453a4e6908d6fb637ffa61f887f302e7c3bf28e7a4ae9a903b91576abc91fcc6
- MD5 c17dfd36e8e6283f118ff73d9b3daac7
- SHA1 c3d6b09cb6cf6eb3e324984a4eae34fcd5b949b8
- SHA512 40b650be644ecd1d5da552cc18ddc6534dbd13a279ecf7b0f0ed85f97c4baad74a6a78ede6ede9872cc0f0c01873bf637c015041aa313a1fada9cf2a201737cc
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqk:bGbvflT/ZFIjBzhxwOgXKarY1iBl
- TLSH T1632509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/4632-8-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000019cc9-13.dat CryptoLocker_rule2 behavioral2/memory/1704-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1704-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1704 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 2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_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 4632 wrote to memory of 1704 4632 2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_c17dfd36e8e6283f118ff73d9b3daac7_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4632 -
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:1704
-
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 0690ca00cd007dca16e96deffbf542b52a3cebb8e75ff6aaeda430cb0203d361
- MD5 2936f9c2c8e2d710889ccebc1d596db9
- SHA1 dc7e2e13732ad29bb809713d36f3d33432bfd3d3
- SHA512 d3c7e6b7db8d27d702809376f9f83a72cae41bfef25cd5eb80a9db4b3b69153f5f0bf3c5950ed9b88397e82edfbccc96ef0e2eb95e5c0755889aef75bf966b58
- SSDEEP 12288:bGbEnOflT/ZFIjBz3xjTxynGUOUhXfSAkVH/CrYQIUMkDmndJmzS+OAPqe:bGbvflT/ZFIjBzhxwOgXKarY1iBL
- TLSH T19C2509BE74972645FE625C307FECF660DB57287ACB6BDAF24195A0301A210D2FC62817
- MD5 SHA1 SHA512 SSDEEP TLSH