Analysis
- max time kernel
150s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
06/05/2026, 10:43
Static task
static1
4 signatures
Behavioral task
behavioral1
Sample
2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe
Resource
win10v2004-20260130-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe
Resource
win11-20260130-en
7 signatures
150 seconds
General
- Target 2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe
- Size 41KB
- Sample260506-mscvcabv2n
- SHA256 01276c3155f7c014b5b3425a6f65371865f03412b9c195e56cb5ac9572cf6946
- MD5 4ba7979f406469ecbf698905d7805665
- SHA1 8d60a8371e707381a62957edb7da9853ea41b180
- SHA512 476c5f517ed8c5db900be4d22e8f62688ede9637331d2cb283cf1a6aec4e14a63fe2e6b340479eb65b75e030b7cba28410770bcfb375579bdd620a1968bbe96c
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4d0Qt:lj+VGMOtEvwDpjoNMpBad0Qt
- TLSH T16813D6366FC50932D2779B7595FB82C2BA26BC563C31990E918A33054C33B42EDA1E1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral2/memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/2304-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x002000000002b202-14.dat CryptoLocker_rule2 behavioral2/memory/4068-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4068-28-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral2/memory/4068-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral2/memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/2304-3-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/files/0x002000000002b202-14.dat CryptoLocker_set1 behavioral2/memory/4068-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4068-28-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral2/memory/4068-21-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral2/memory/2304-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2304-3-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x002000000002b202-14.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/4068-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4068-28-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4068-21-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 4068 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 misid.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2304 wrote to memory of 4068 2304 2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe 80
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-06_4ba7979f406469ecbf698905d7805665_cryptolocker_elex.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304 -
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:4068
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 41KB
- SHA256 095042760187930fc1e24a0f3975f64d7e9e7ad9ed5d3e9c454456e7d246249b
- MD5 89c396c821bb880c56be7719d9ca53da
- SHA1 8fc76224382b140998868ff1b9c27b9c645e6bc5
- SHA512 7d6f016d01f13de8cc7aac702061023c0543dcd36b12c84925928af3d204e05a7d0506792cdc6e95be8829e44c2ebe3c0ddc6eb7196fbf8ce3e276c380d2ab34
- SSDEEP 768:lQz7yVEhs9+4uR1bytOOtEvwDpjWpN+Mw5XBN4d0Qa:lj+VGMOtEvwDpjoNMpBad0Qa
- TLSH T17C13D6366FC51932D2779B7595FB82C2BA26BC563C31990E918A33054C33B42EDA1E1F
- MD5 SHA1 SHA512 SSDEEP TLSH