Analysis
- max time kernel
150s - max time network
155s - 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, 11:16
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe
- Size 27KB
- Sample260820-nc7v8avhpg
- SHA256 33116478059354194112d17f4a96d431849578a354cc38e330a0a3aeccf3eae5
- MD5 da3a4f2be7cc39a8d9cbe3370252d074
- SHA1 e79defda9368b596dbec98d0e0040accf0f334a2
- SHA512 559a05b48c8de69bcf7d53588674c9cb1fbe230cd1ccb92d12f96544e861cea5f17e6849df9f48c274326a524478d616540f7c97ac3ea24c2785616e8a7a6939
- SSDEEP 384:9Dl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4KOQNj:9DOw9UiaCHfjnfNj
- TLSH T1B3C21A31BEE66C22F17B7B7010F392559879BD513E38458FECCFB7980671A62E82150A
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3584-2-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000d00000001c5c5-13.dat CryptoLocker_rule2 behavioral2/memory/1280-18-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 behavioral2/memory/1280-20-0x0000000008000000-0x0000000008009000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 1280 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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3584 wrote to memory of 1280 3584 2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-20_da3a4f2be7cc39a8d9cbe3370252d074_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3584 -
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:1280
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
- Size 27KB
- SHA256 2a659386373ef430464f6e82c6f94b87c1cb49b14c7b006c5d89339564e54752
- MD5 eb7dc3237515ddaf01335b044875a84e
- SHA1 1a572a390adf514eb57283b4b3fa44b6732d3bce
- SHA512 2fa9393fc4a540a736ddeed890138467f60879ecc0b122e7c3c5e663cc618fc8c6f65818cf8d29ccf7492afa238ac4e804c1a6f424eadb2414490ca7629682f1
- SSDEEP 384:9Dl1ovmXAw9PMDREhi9OUSPlRxMc/cip7IAfjDb4KOQNp:9DOw9UiaCHfjnfNp
- TLSH T10CC21A35BEE66C22F17B7B7010F392559879BD513E38458FECCFB7980631A62E82150A
- MD5 SHA1 SHA512 SSDEEP TLSH