Analysis
- max time kernel
150s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 03:39
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe
- Size 3.4MB
- Sample260817-d7284ssfme
- SHA256 c7ab68013fa3773f3b73860f465b7e24b2e79160a4d27e200e825b3b4d1112d3
- MD5 33ca4dcdd696b2518c1e2c40eec9355e
- SHA1 510550bec309cc3b09255c0bb73edbc57bf9ecf7
- SHA512 93c4f18ee075e5e945a4022a4effcf516afddc6fe05d7a22106c335a0007c31034e3438d7aa617b1ce7ffbe1d3149ae10a27ade35d5d01c994cdeeac02aa3581
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfu:uR/ZFIjBzldUfs/ZFIjBz7jSZDD
- TLSH T1C3F55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/2156-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a000000019cb8-13.dat CryptoLocker_rule2 behavioral2/memory/1188-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1188-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000a000000019cb8-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 1188 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 2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_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 2156 wrote to memory of 1188 2156 2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-17_33ca4dcdd696b2518c1e2c40eec9355e_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156 -
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:1188
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 3.4MB
- SHA256 09f6a251e49344e52fb51ae4c117d961cb444a3c7f17dc2440e15c37e296032e
- MD5 6dd7fc5d6f26c2450f5be3e6761fe1e0
- SHA1 aca6061d1d46208316509b55e3ee97968ee9c13f
- SHA512 1843e3b5be8cdf0c056583b5c24d053938f4aff6da24c8bfbd152d6452825c3ba209a74903baaed469620b41a3b56e3624f0408c61dbad4baf70a03352aeeaff
- SSDEEP 49152:uR/ZFIjBzT1CIdSPHf0f/ZFIjBzGAyGs+Q7uOZzNvBLEdfa:uR/ZFIjBzldUfs/ZFIjBz7jSZDX
- TLSH T1DEF55C6F68A611A4DCFAC8305BE9F222FF6334594739A7F31AA091201F25BD1F875712
- MD5 SHA1 SHA512 SSDEEP TLSH