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
21/08/2026, 04:37
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe
- Size 39KB
- Sample260821-e82jmsgn2z
- SHA256 ced5a81b490facab51e87e70df90c9698aea77fc2d0fd2d0f7ee9aa6cfad3a60
- MD5 4acd44ab830d95eb896d9aeb2c8c1b84
- SHA1 b686ba8448d85dc47d61d7ccfc60efba31a36cb0
- SHA512 e7578c2e64a028f9bcc1321285a84d3b43d52b3dca325b634f62267ab13a093639a67e1f3cbefb9de63b2b7e10b4810567125cd04e3c0dd2a172599832b381c6
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+9izdE:bdDOw9Uiaw8fjR0STX73OBqgaz+oQD
- TLSH T1AB0352387EE52972E37BEB7185F391C6B874B4227D15890E94CE57440833F62ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000600000001b85f-13.dat CryptoLocker_rule2 behavioral2/memory/6112-27-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 6124 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_4acd44ab830d95eb896d9aeb2c8c1b84_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 6112 wrote to memory of 6124 6112 2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_4acd44ab830d95eb896d9aeb2c8c1b84_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:6112 -
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:6124
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 39KB
- SHA256 cfe4970e9748151742701e8dc058822f492c8f52497b77ec9c465a3234bdac0e
- MD5 e252892063279d3ebfac3b6331034c8d
- SHA1 c81d76b3f4f7dd8a3f79aeae1c6be6fc767226a0
- SHA512 96fa6ce3806c5cc7a9e671e2130d6e60b242f4bbf6a0555c655e7a4b3141e5687c9e52cb3585269e236796391dd25c6bc6cfd4102266027bc3d32275f94bd64d
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+9izd5:bdDOw9Uiaw8fjR0STX73OBqgaz+oQS
- TLSH T1200362387EE52972E37BEB7585F391C6B874B4227D15890E94CE57440833F62ECA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH