Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
03/05/2026, 17:18
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe
Resource
win11-20260130-en
6 signatures
150 seconds
General
- Target 2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe
- Size 51KB
- Sample260503-vvmrbsev4v
- SHA256 61e4dfa0020b8f4f1f22d919943e4df921c4cc9d08319a5ca5eca2a9153f1cd9
- MD5 8ece1b89c2474a17f18a4ddfa8351cc0
- SHA1 9f27e45950385920481d8e8e245d0befdf07a418
- SHA512 56da2927bc6abb12a5bf936f8e379fd08c266e61f1b217916d49d7475aba60ac7d95dd1cfbdeff0555cc04e818be431752b19b61631adf0e78e34e67f9adf436
- SSDEEP 768:5Qz7yVEhs9+js1SQtOOtEvwDpj6/4houzaLKJ5ZO9+4tKMZ:5j+jsMQMOtEvwDpjK4WvLKb6Ht1Z
- TLSH T14233C8372AD529F3D33397B0A8F695C2B622BC917E314A8D948633454833786ADD3E1D
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001e6d1-12.dat CryptoLocker_rule2 - Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001e6d1-12.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-1-5-21-721190819-434563495-2007910846-1000\Control Panel\International\Geo\Nation 2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4428 misid.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 2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1952 wrote to memory of 4428 1952 2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-03_8ece1b89c2474a17f18a4ddfa8351cc0_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4428
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 51KB
- SHA256 bce0beec68a960f79ed2ef181ff37955f0c5254be034a30a691d881e4e452191
- MD5 f32558f81536b41fd6dae1167ba78e55
- SHA1 485505c53b68e9d26c35cfceae79b681506c727e
- SHA512 ab91b9c28544cb4c8fdbb4b3cf42ba85057a0f57ab2b2cb0212bb5fb2be09fddece5783914677f65eeefef6d399e922da322f5ebfa5d69ac70a0b3e63a53988e
- SSDEEP 768:5Qz7yVEhs9+js1SQtOOtEvwDpj6/4houzaLKJ5ZO9+4tKM1:5j+jsMQMOtEvwDpjK4WvLKb6Ht11
- TLSH T10A33B7372AD529F3D33397B0A8F695C2B622BC917E314A8D948633454833786ADD3E1D
- MD5 SHA1 SHA512 SSDEEP TLSH