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
19/08/2026, 22:38
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe
- Size 29KB
- Sample260819-2klvlsvdrf
- SHA256 7561017013da7da006375a5aa94725adb9a7ce88888e6d8bb5f381dfbd909c40
- MD5 76a74b3c9bc7404cfa0827649ee906e2
- SHA1 12adc252be1b346e0f9c4fb9542589910854951c
- SHA512 b1b3424569ee228ca57d1f66cc30745287ca76c631e98bdb315bbb1d6ebf53eb120657f00f7ab58ae33f952c5e7fce83098000c52216b47d56a31d85a0b6ea2d
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HqO4//I:bIDOw9UiaCHfjnE0SqO4I
- TLSH T106D2E839BEE56C72E177BB7054F39286A979BD123A24494F98CF73880932E53BC5210D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3368-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000019cc9-13.dat CryptoLocker_rule2 behavioral2/memory/1860-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1860-26-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1860 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 2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_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 3368 wrote to memory of 1860 3368 2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-19_76a74b3c9bc7404cfa0827649ee906e2_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3368 -
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:1860
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 29KB
- SHA256 8f29006c621e29257686dc476d22a8bd249bc868030a017f23c4c0b513b54630
- MD5 2c08136e21b17c445283cdd3e273cd76
- SHA1 57349bdbda4d8a61af0aa1fb0bbf417f2b4f8908
- SHA512 d4405f64aa57a0e55902b5fee30ce1cdd68a4c8835e26bd554076760540fedaab396654253284af41ad01f6a514e5df96285b485f729d3eed4d0d56ed31c3f97
- SSDEEP 384:bIDl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4H0g/HqO4//U:bIDOw9UiaCHfjnE0SqO4U
- TLSH T17FD2E839BEE56872E177BB7055F39286AD78BD123A24494E98CF73880932E53BC5210D
- MD5 SHA1 SHA512 SSDEEP TLSH