Analysis
- max time kernel
150s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
14/07/2026, 04:37
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe
- Size 4.6MB
- Sample260714-e9b1daet9n
- SHA256 e3083b15cf6791e1eb0640a43bf009a519a3d5b0ad9098a377976cfde4a61cc3
- MD5 07851ae6211c524af6fecf48d5464773
- SHA1 2f452978ed0f8fd35057e6ac621628fd2714a001
- SHA512 7770da02e82704057f87a2452386be68c911bf436dcc0fc9ab49040cba631480dfa4affe6199408cf04a7113249ffb96bceae1dd012ba562de7b53cf6545a21b
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymTc:w/ZFIjBzF/ZFIjBzPEUusc
- TLSH T1C0363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/3280-2-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000800000002453d-13.dat CryptoLocker_rule2 behavioral1/memory/4284-17-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4284-22-0x0000000008000000-0x0000000008022000-memory.dmp CryptoLocker_rule2 - Detects executables built or packed with MPress PE compressor 1 IoCs
resource yara_rule behavioral1/files/0x000800000002453d-13.dat INDICATOR_EXE_Packed_MPress - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1788976790-1541110888-1636651838-1000\Control Panel\International\Geo\Nation 2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4284 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 2026-07-14_07851ae6211c524af6fecf48d5464773_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 3280 wrote to memory of 4284 3280 2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-14_07851ae6211c524af6fecf48d5464773_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3280 -
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:4284
-
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 760295dcfad9fa493058535908f6c034b418f84eba6663281e3302fa0b3d61c4
- MD5 1bc1cd753dc6cb3aaa6f20ec43096e07
- SHA1 01b17b374b0afef773715b92ff601333a18128e4
- SHA512 db51eb158458a191d970abb9889d2aeb5ca017397ce81f63f23eb3ec2d730b03c2ff5e8c83df2cc2769afbe3dedc037b8f89189fef383c5e6542186a2e7ce4c9
- SSDEEP 98304:uR/ZFIjBzldUfs/ZFIjBz7jSZD1tU7ymT+:w/ZFIjBzF/ZFIjBzPEUus+
- TLSH T1AE363C5BA8E650A4C8FAD8348BE9E223FF633459473577E31BA091601F25BD0F8B9711
- MD5 SHA1 SHA512 SSDEEP TLSH