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
19/08/2026, 22:57
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe
- Size 37KB
- Sample260819-2xe8labk3w
- SHA256 f32016df8d8c500639cc4ae171664f81dccff5da5979e49157335947f68e8f5a
- MD5 4a4d02df80f4f20c824b9ae9d7c00862
- SHA1 772563975757f32ed0c06020c1ce3862cbac1e38
- SHA512 ab9147ff8dd35b43f65cef281b372fb9a995fc4ab0fa2c023985a3dada4ff51fe128b887c1e70c14cdf614ad57aeb2de6acb10f0295c19ab847732fb4503fd53
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXua1YoE5Pxty:bG74zYcgT/Ekd0ryfjQYjM
- TLSH T18103D535FBEA3822DA3BAEF491F650F2AB3F7815791078CE049BE34C4872611995D50E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/3012-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3012-3-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb8-14.dat CryptoLocker_rule2 behavioral2/memory/908-20-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/908-27-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 908 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 2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_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 3012 wrote to memory of 908 3012 2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_4a4d02df80f4f20c824b9ae9d7c00862_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012 -
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:908
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 37KB
- SHA256 939f7aa089d00a54f49bdf03cf40c2e0a8c2941469e4b7d89dc26ed3ae341330
- MD5 cb9f46fd5c0f591bc85c30bd94ba9c18
- SHA1 3986c51bcde7e44b4706bcd680e35cbc0ada5ce9
- SHA512 526609529af8d2d25fbf63074553fd956483babef4f66be5bc1796610adec87e05261b6d30e33963fcb5f63c32c420c1c7df8c040e4f09cd32fe3135f7208862
- SSDEEP 384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXua1YoE5PxtG:bG74zYcgT/Ekd0ryfjQYjQ
- TLSH T1A103D535FBEA3822DA3BAEF491F650F2AB3F7815791078CE049BE34C4872611995D50E
- MD5 SHA1 SHA512 SSDEEP TLSH