Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/08/2026, 00:29
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe
- Size 26KB
- Sample260822-atbmfstyhy
- SHA256 f702a42887a660ba5077e0117a160ed0abc8b156c8596526638b2e0e8298030f
- MD5 eab1ca972d0ca245a8175f4943352284
- SHA1 61f940975a64b7589e80bb2fe0db852861ce84b4
- SHA512 56f37b3f11927bd4f56734b8e3633f6ee3f9ad8d38d144e0e10ef8c7f30060e8bc214f64f75387c5dc4175771a84c33c70da1ee48f920bee79ae1f59608ad8bc
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIOc8X:bA74zYcgT/Ekd0ryfjPIb6
- TLSH T17AC24A397BA73C61D07A9EB015FBA042797FBC513B38498FACCF3798DA716916402486
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1300-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000011390-13.dat CryptoLocker_rule2 behavioral2/memory/3076-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3076-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3076 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 2026-08-21_eab1ca972d0ca245a8175f4943352284_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 1300 wrote to memory of 3076 1300 2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_eab1ca972d0ca245a8175f4943352284_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1300 -
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:3076
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 26KB
- SHA256 c51ad9484942ee146a78aa3bb5b7d356571e28112a84a41b23a4d82c05702e1a
- MD5 d5597bf61ca89296a8673179f805fbfa
- SHA1 358ab80420fdb689a736a1c0165c2d3db633d34d
- SHA512 234cc81d70343651d2247cd6e93a356429da6f43260333b00cfa3cff843421f7239179f327cae1780026212694c5baa444f2ae78d360a7f7b8c5f13eaf6c79d0
- SSDEEP 384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIOc8q:bA74zYcgT/Ekd0ryfjPIbP
- TLSH T110C23B397BE73C61D07A9EB015FBA042797FBC513B38498E6CCE3798DA726916402486
- MD5 SHA1 SHA512 SSDEEP TLSH