Analysis
- max time kernel
150s - max time network
147s - 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, 05:23
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe
- Size 39KB
- Sample260822-f3mnza1eje
- SHA256 3aaad1d66b9bab448bbe0c8cc8d990fb071c04fe12ae530669901352180402c0
- MD5 cf80567d8f905e904b8d0fee52f875dc
- SHA1 8e3f99c3c5c974cf3314d631c585400a0bdb385c
- SHA512 b32ab8e830e3f9878037cda30d412fd6909711b2ee3e8bdfa4d96e239cbd600f1bfd11b16f8494394e27704c94469c84d06f1267bf84aa504e48ce4039f46dc1
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNbz6avdrQFid6Aj8a5vV:bdDOw9Uiaw8fjR0S16avdrQFiLjJvtXP
- TLSH T188034138AEE56972E3BBEAB595F751C2F874B8123D15480E94CB53840823F56FCA160E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 2 IoCs
resource yara_rule behavioral2/files/0x000b000000011377-13.dat CryptoLocker_rule2 behavioral2/memory/2648-17-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2188 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_cf80567d8f905e904b8d0fee52f875dc_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 2648 wrote to memory of 2188 2648 2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_cf80567d8f905e904b8d0fee52f875dc_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2648 -
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:2188
-
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 42cb0978d564b19655650bd895e6e85b6148c20a2e5cf0bd31e09769f43162c2
- MD5 37a583c01ae74746df72d74266688688
- SHA1 262a7d25b148e52432336db74cb3596dd567aa23
- SHA512 e050ca12eb771396825e197a9810323029fc158aa3e90ac66f66fb0e2f59c737de8cbc7284fd2cd1ae34a307dabb50e90f93e99395e6c2928e90da87f3b261f5
- SSDEEP 384:bdDl1ovmXAw9PMDREhi9OUSPlRxMc/cip58TfjDN0g/HNbz6avdrQFid6Aj8a5v9:bdDOw9Uiaw8fjR0S16avdrQFiLjJvtXH
- TLSH T11A034138AEE56972E3BBEAB595F751C2F874B8123D15480E94CB53840823F57FCA160E
- MD5 SHA1 SHA512 SSDEEP TLSH