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
21/08/2026, 16:47
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe
- Size 37KB
- Sample260821-vaha4steqf
- SHA256 9c3f1cd912f49211653f2a6920929fc33e7aa148e77bcebbc186d0930c8584e1
- MD5 79e2faf12ec254bfd29f62897f189848
- SHA1 44631243586307972538ded415cbe988e5429d31
- SHA512 57e35a9476f82796aacf63b91433d55e20ab1e4b3d6d0033826c53a6989d283943fefccd57958a10ed25f041e4d4f99f738ffc31475c6cdbb4abbdfdbde92a11
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqys:bdDOw9Uiaw8fjR0STX73OBqgazTDhs
- TLSH T1660362387EE56972E37BEA7185F781C6B874B8123D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x00160000000115f1-13.dat CryptoLocker_rule2 behavioral2/memory/4648-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 3216 lossy.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_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4648 wrote to memory of 3216 4648 2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_79e2faf12ec254bfd29f62897f189848_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3216
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 37KB
- SHA256 11942c72175cbed24f07e39711e52f121fc2416795a178fecf113fc7719ae551
- MD5 a84a647be1a7de4b7384df4075c33a73
- SHA1 59ddf685cda4415385f757616887dc1bd4abf402
- SHA512 61bc6e72895751767f5e18a017749b49012e10a918b61d0ccdd42bd17c0d1cfe3f09e7db2ab9331edb3ce5e159e6c8b2a581163993ea58bbc7151bb6d1a78d64
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvazTvbqyU:bdDOw9Uiaw8fjR0STX73OBqgazTDhU
- TLSH T16E0362387EE56972E37BEA7585F781C6B874B8123D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH