Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
28/08/2026, 22:10
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
5 signatures
150 seconds
General
- Target 2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe
- Size 47KB
- Sample260828-13lrwsem4x
- SHA256 2fff9aea13ada66c31479c25befe2da477d8d93c3436d9099ff558b33951f398
- MD5 0ed70ab06961a79cd16decc0f784d7ef
- SHA1 2abc0037cd7aa610b8830dde59e5af6afb6b354a
- SHA512 020b97638b3215f6617c875dce357b8e411f20ac4d975351783bc961fa6cea60926c4c393b74aa32270593ae93822187026efc03525201b9d4919732c7d04a10
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhuH:bgGYcA/53GAGgIvF7EkH
- TLSH T1B32322387FE62932E37BDFB586F691C6B975B8223D16980D40CA43444833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2984-2-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a0000000244c7-13.dat CryptoLocker_rule2 behavioral1/memory/4668-17-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4668-19-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 - 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-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation 2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4668 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 2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_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 2984 wrote to memory of 4668 2984 2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-28_0ed70ab06961a79cd16decc0f784d7ef_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984 -
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:4668
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hasfj.exe
- Size 48KB
- SHA256 0f352f517f1ba65869514c738cb806d8a1ac7a85bca7d2a9fa6eebfd43c4f12b
- MD5 79e70bdd6a06cdc599f1421e27f8fa27
- SHA1 15007d95398240ef7d54b839f97ec01002e42255
- SHA512 df366101ef3adbb3da42285e499af76027163aaa1814dda03afdacb788aaa6990ebea65a610afaf8f263a1fe595897660a19900e82fab2deaa784363cdce7abd
- SSDEEP 768:bgX4zYcgTEu6QOaryfjqDGgIvq3ncSpcJEhur:bgGYcA/53GAGgIvF7Ekr
- TLSH T1C52322387FE52932E37BDFB586F691C67975B8223D16980D40CA43444833F65DCA1A1E
- MD5 SHA1 SHA512 SSDEEP TLSH