Analysis
- max time kernel
150s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
09/08/2026, 04:05
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe
- Size 42KB
- Sample260809-enq76sttg1
- SHA256 1d90573bcf81666a96c0412a080f0291675f06baf066e6fd25d13b00b5ace9bb
- MD5 98eccd7528dd1be53a15165d69011160
- SHA1 63a903be134b2a2a323482fbe63f617983306ce6
- SHA512 1ed1ff6f703fdbc587383d93273764f2fffcc0999509b39de449bc53121112ec4c61e7428a2cfdda16640ad004fd82604e04fc4fb15fa7ff3f00a95a5860d72a
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCXm:bgGYcA/53GAGgIvFn
- TLSH T15B1373387BE62972E37BDFB586F691C67975B8223D16880D40CE53844833F65DCA1A0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/1588-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a00000001b315-13.dat CryptoLocker_rule2 behavioral2/memory/2808-18-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2808-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - Executes dropped EXE 1 IoCs
pid Process 2808 hasfj.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 2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1588 wrote to memory of 2808 1588 2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-09_98eccd7528dd1be53a15165d69011160_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1588 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2808
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 42KB
- SHA256 e708e995c723bf296c08e9792f114d2eee165edf004bf82f5bf8de0aebea4a4e
- MD5 752a73c534201579515a80edf3da295e
- SHA1 17670d88aab64684f0f9a66687538411ee9795af
- SHA512 d0590d8dd5fafd487be7088e4ae6f4e18c29891c544c1ec77f5b192e6501232b5e88ce8c070e21801b05d9100f9f28e75a2edb47bf8942f59f7106cc8e67c2e6
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcXCX4:bgGYcA/53GAGgIvFd
- TLSH T1B21373387FE62972E37BDFB586F691C67979B8223D16880D40CA53844833F65DC61A0E
- MD5 SHA1 SHA512 SSDEEP TLSH