Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
07/08/2026, 19:59
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe
Resource
win11ltsc2024-20260709-en
7 signatures
150 seconds
General
- Target 2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe
- Size 48KB
- Sample260807-yqrfhasfmb
- SHA256 e2d402f87ae5f0bcae4575a8ef3e7b817e60f0501bb63d2ed3406c5e04dd9608
- MD5 1df934a3b1623ec5c1a3086d6da5c08a
- SHA1 e40999f3708a82245add386effca7ed5bbe28dab
- SHA512 accb35b5ff6b99102bc7d7d78e3b2259debd792452fcb88909f2b31ef8a6d88e1eb271de4db71c12261f975b651c0c74395c510c2954e0480135f17f8d2dc21f
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uXADHAAHD+ltIplU:i5nkFGMOtEvwDpjNbwQDfj+laLU
- TLSH T19F2331786ED91572E3B7CA75C9F685C2B935B8233C129C0E41CA63454C33F16ECA2A1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/4340-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x002000000002438b-13.dat CryptoLocker_rule2 behavioral1/memory/4340-19-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4620-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/4620-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/4340-19-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/4620-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/4620-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/4340-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x002000000002438b-13.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/4340-19-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/4620-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/4620-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress - 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-1-5-21-668679576-120646659-2289335452-1000\Control Panel\International\Geo\Nation 2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe - Executes dropped EXE 1 IoCs
pid Process 4620 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 2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_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 4340 wrote to memory of 4620 4340 2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe 86
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-07_1df934a3b1623ec5c1a3086d6da5c08a_cryptolocker_elex.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4340 -
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:4620
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\misid.exe
- Size 48KB
- SHA256 8385c0fdac60036842da61bdb25c3e36080acb153a91501082c551afb1b29c59
- MD5 269235c610ffb1e474183b1746451a19
- SHA1 50eb295c434e590ca87000dbf6c1a95f38efce48
- SHA512 e95c68bf905fcdd0b75497d80cdf8e0fc7f9a3c660aefdaf7bae0d8e0d1805eba91b380b1c35afecbbc0bc35dd2201d35fd4838701bfabe3b9d465a792d03d31
- SSDEEP 768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uXADHAAHD+ltIplP:i5nkFGMOtEvwDpjNbwQDfj+laLP
- TLSH T1D92331786ED91572E3B7CA75C9F685C2B935B8233C129C0E41CA63454C33F16EDA2A1E
- MD5 SHA1 SHA512 SSDEEP TLSH