Analysis
- max time kernel
150s - max time network
113s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 16:08
Behavioral task
behavioral1
Sample
2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
General
- Target 2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe
- Size 58KB
- Sample260804-tlpc5ahr7x
- SHA256 25cd2fbd62d0adb68581e3515ec69c3e33b4231e91ceb856c7e459fa73b59122
- MD5 3ba31f7c9b09bd3f30ed7a6056622f90
- SHA1 2df909778f17945412cbdea3e6166be04bf3aac0
- SHA512 96db2d347a27487a2cd22e3ea23c52fe39ec42aa21124b7be84aec9f08ede2e289e6c3912033c65b2966a10e161d1a80f72a630fe52883742d7d05e52b5cdb39
- SSDEEP 768:jwhM/tqZKgVuz1NmnbcuyD7UQF4Ak12M5ezNG/2rb7+ZY/vAebK:jkAGnVE1Nmnouy8u4ZUGezN/6ZY/v/bK
- TLSH T1B1439C3CAEE91672D3BBDABAC6F651C6B975B4233D02584E409603840C13F56FDA1B1E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/2508-0-0x0000000000400000-0x000000000040C000-memory.dmp UPX behavioral2/files/0x000a000000019cb5-6.dat UPX behavioral2/memory/2508-10-0x0000000000400000-0x000000000040C000-memory.dmp UPX behavioral2/memory/2208-12-0x0000000000400000-0x000000000040C000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 2208 wujek.exe -
resource yara_rule behavioral2/memory/2508-0-0x0000000000400000-0x000000000040C000-memory.dmp upx behavioral2/files/0x000a000000019cb5-6.dat upx behavioral2/memory/2508-10-0x0000000000400000-0x000000000040C000-memory.dmp upx behavioral2/memory/2208-12-0x0000000000400000-0x000000000040C000-memory.dmp upx - 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 2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wujek.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2508 wrote to memory of 2208 2508 2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-04_3ba31f7c9b09bd3f30ed7a6056622f90_elex_upatre_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Users\Admin\AppData\Local\Temp\wujek.exe"C:\Users\Admin\AppData\Local\Temp\wujek.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2208
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\wujek.exe
- Size 58KB
- SHA256 6cf920cbaafd9e947815b1a1efd841652b75dbf1b8d2b407865bc4e19661c8bd
- MD5 856547e689951f825825c5e6a521943e
- SHA1 b984f153a3c191d7149d354f8af154e6105ba57b
- SHA512 277156cfcc035f8c18a77ca461b92e6d4be2207addd8aea37c47dc6f6de552c57d2e5e7f5dbd389cbaeadafd4240c3495738bc6595d549735d9dec06a14eff5a
- SSDEEP 1536:jkAGnVE1Nmnouy8u4ZUGezN/6ZY/v/b0o:jk1nIUout+
- TLSH T102439B3CAEE91672D3BBDABAC6F651C6B975B4233D02584E409603840C13F56FDA1B1E
- MD5 SHA1 SHA512 SSDEEP TLSH