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
04/07/2026, 08:24
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe
Resource
win11ltsc2024-20260629-en
19 signatures
150 seconds
General
- Target 2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe
- Size 52KB
- Sample260704-ka8sysc171
- SHA256 12d38403be83ae6f8b3ca252b298a22c05a16445f01f2298ee0bbca1b9558891
- MD5 8196653a95c11ecc150f37be1da4fe83
- SHA1 8c63f675fe5a82cc9299c8650adf53d7f2317f65
- SHA512 ba159c6f527c54b902cc790c83028a5d9c2a4adf6a83406ab8d7a5ac365f8858b81c58b1f6dcafb7526f9d1bc532d646d81b7b24d9d0ee72db5d414507b13996
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7Zsz6Im7wmF2H70ResBd8:aq7tdgI2MyzNORQtOflIwoHNV2XBFV71
- TLSH T13733A532ABD415D6E6739673F5F752C2A926BC162A21494F20893F050EF37C1ACB2D1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000243d2-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a0000000243d2-12.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-1-5-21-2937465464-4167303362-2236413517-1000\Control Panel\International\Geo\Nation 2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 3876 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 2026-07-04_8196653a95c11ecc150f37be1da4fe83_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 4388 wrote to memory of 3876 4388 2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-07-04_8196653a95c11ecc150f37be1da4fe83_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388 -
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:3876
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\hurok.exe
- Size 52KB
- SHA256 31c400e562d9b2a3444d1739a1c966bc8494783c2ddc2b07e092ab60b4dec1e5
- MD5 f0426f3b66a742996ac2b36f21a75998
- SHA1 b92334c4e091625ddb538223db2256cede70cde8
- SHA512 1d53d0f11defdf3b3f003fb9ca0db4908ac37c1b4974321f453cefc31957134c1aba8bfbf7208bfcee16250d4f1c1382e61e8e87e601b5ffdacb5333e8ba1aab
- SSDEEP 1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7Zsz6Im7wmF2H70ResBdh:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7A
- TLSH T1DA33A432ABD415D6E6739673F9F752C2A926BC162A21494F20893F050EF37C1ACB1D1E
- MD5 SHA1 SHA512 SSDEEP TLSH