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
20/08/2026, 12:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe
- Size 36KB
- Sample260820-p2xbfsxdmc
- SHA256 55b9a77a10f66074b48548ba92e8306fb062850531989a73d843b31177087684
- MD5 48ff23cb4745baa4e6fb17037b618e6d
- SHA1 b3b27e4ca056b0288d8ac82defa112b9174dde91
- SHA512 ff0c435dce93c3543e3efd94a84097032721843684ebe17a4478342e9de0dfbd35000caea3bfcfaafddb48805a8fdea23797ef483e9b5cd5fadb31b11406c53b
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+h:bdDOw9Uiaw8fjR0STX73OBqgaz+h
- TLSH T1ECF274387EE56972E37BEB7585F781C2A874B8127D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000a00000001136f-13.dat CryptoLocker_rule2 behavioral2/memory/4944-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 5864 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 2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_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 4944 wrote to memory of 5864 4944 2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_48ff23cb4745baa4e6fb17037b618e6d_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4944 -
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:5864
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 36KB
- SHA256 3a9ddf257bf0c5eed192171dcef442803e2af1a8c3a1225d639ea9c347d2dfd7
- MD5 166575954b1c8299fe37e1783c690925
- SHA1 03c25a1c5c3b8b6c09c4dd3cf261171636e8c06a
- SHA512 4aeeacb4757824dee7a79e13007cdbb9348ad7afebfa4835f0ab8594a54deb3525fd0bbc8a6ed77f1cef6bfbfcef814d869112144ed9bc90fa1eace42962ba4c
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNblX7QCOBqYvaz+0l:bdDOw9Uiaw8fjR0STX73OBqgaz+0l
- TLSH T1FDF274387EE56972E37BEB7585F781C2A874B8127D15890E94CF67440833F62EC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH