Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
29/07/2026, 08:27
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe
- Size 4.6MB
- Sample260729-kcmcqsfc27
- SHA256 69668b55673108582ef88336306559fdfafaec96e679a1e8cdbc991b3222b6f4
- MD5 516e928c127fa10a979780b18aa4227e
- SHA1 55cc4aacf201f49d66afa4b7785f8461850a22b8
- SHA512 8e7ac549eb4fada900b8fa55735f39059d2b33d15f883228bfdec425f5957400b70fb3383b27c785714ad4a99e45bef0cc3ea74584da0ab7fdae893cac16fec3
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT+:w/ZFIjBzF/ZFIjBzPEUus+
- TLSH T123363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral2/memory/3212-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000a00000001b315-13.dat CryptoLocker_rule2 behavioral2/memory/2612-18-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2612-26-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral2/files/0x000a00000001b315-13.dat INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 2612 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 2026-07-29_516e928c127fa10a979780b18aa4227e_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 3212 wrote to memory of 2612 3212 2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-29_516e928c127fa10a979780b18aa4227e_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3212 -
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:2612
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 4.6MB
- SHA256 7f24a92ed94ac21c138314576c7f4fe2d36ac3e5221fca45d47ca263a21f1360
- MD5 fd8b9475bf8ffa6022e96c7b84d9b534
- SHA1 293ad0fcd531b59c6462a9a4aa0b51cf9367a037
- SHA512 9925e1b39bfd9efbc00f6ab48ebfcb12590ba2428fadefb4ea3ef5d177efb5fd68b1ff015b78bb5b110386722395bbf9d5214880eddc809d068bb1eac4934512
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT9:w/ZFIjBzF/ZFIjBzPEUus9
- TLSH T159363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH