Analysis
- max time kernel
149s - 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
02/08/2026, 10:41
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target 2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe
- Size 50KB
- Sample260802-mrfjva1cmd
- SHA256 631736520fffd582ab4b9ba7508aaf4741a902a3f7ea38503ba36507161d9278
- MD5 d75d9201b804b08ff152c78f7a5d1dc1
- SHA1 802c24ad1b6ae396ea29d139407cda02bb04f2cc
- SHA512 1c9e6d322131cde82d5845db30158b53068123667c35a01cf96f5ded1077ccc03604cd466f0eabadb6beaf61c80edc9f16a0f827197d267ee3c4dfa132454b77
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatSD:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7a
- TLSH T1A133EC396ED515F2D777DAB7E5F695C2F922B9223912880D408B2F4009B3B92BCD1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x00120000000243ca-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x00120000000243ca-12.dat CryptoLocker_set1 - 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 2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 2792 hurok.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 2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hurok.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4708 wrote to memory of 2792 4708 2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_d75d9201b804b08ff152c78f7a5d1dc1_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4708 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2792
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 50KB
- SHA256 bddc7db8cc81eb9db4730c380ae3f57df1c7b6fcf85105bc83f548a2eb852170
- MD5 7bb4770959b26c26181017552abe1432
- SHA1 35e2f3e3474e6507812ea8aa7f7844ed3aa2512d
- SHA512 0b82a5d4eb894937893bf226cfa699e90fcc036f4d00186cec37438c1f97826162938babf2e364863e0c88afa81187561926d7f97cee6419c851906bcfa5682d
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatSh:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7k
- TLSH T18B33DC396ED515F2D777DAB7E5F695C2F922B9223912880D408B2F4009B3B92BCD1D0E
- MD5 SHA1 SHA512 SSDEEP TLSH