Analysis
- max time kernel
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 20:50
Static task
static1
2 signatures
Behavioral task
behavioral1
Sample
2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe
Resource
win11-20260513-en
5 signatures
150 seconds
General
- Target 2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe
- Size 57KB
- Sample260602-zmtbcsft2k
- SHA256 044c595c257bcbc30aa96ea5feb704941d3b6becc53a4f9dd108f3e23e436de5
- MD5 59c51a078d64f86ea5b1ecf9e53a6a99
- SHA1 a023df2e06ebe86721d3d00a52491498ad953f4b
- SHA512 452bc3ced03234b5992b1145a0b5d58a671fd04c1a3bf269c0f5a191981d71f93ccc0a212e350aa0c5e9efc770d7c89777d25c2d9300c97a146ded925c15f27c
- SSDEEP 768:BW9+FP4BPtYggggggLvggggggggUaocHMoknj3+LxNIf6pipAhTS:SaoVbnzYxOuTS
- TLSH T1124387346AD51672E37B9E7586F251CAA87DBC233D03680D4071F7440AB3FD2ADA1A4E
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral2/memory/4144-0-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/files/0x001f00000002b412-5.dat INDICATOR_EXE_Packed_MPress behavioral2/memory/2504-13-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/4144-12-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral2/memory/2504-14-0x0000000000400000-0x000000000040C000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 2504 btkba.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 2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language btkba.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4144 wrote to memory of 2504 4144 2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-02_59c51a078d64f86ea5b1ecf9e53a6a99_elex_upatre_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4144 -
C:\Users\Admin\AppData\Local\Temp\btkba.exe"C:\Users\Admin\AppData\Local\Temp\btkba.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2504
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\btkba.exe
- Size 57KB
- SHA256 f4a49eca913339e54f090e552da2d1ba36d5aa196843d10bd1dcf36ff8b51153
- MD5 2b774b05933ab23c23fa1385bce6a8d9
- SHA1 dc66d09b3691faa894785174684da8552ec6988c
- SHA512 ba13d50f32d1d40aa892148cc0b6503785dd3bfa99ffe2297ca91a329420346a520c488595ae9e0fc95c9be3ea1deecf38cf6ef8f991a491890b27b569756ea8
- SSDEEP 768:BW9+FP4BPtYggggggLvggggggggUaocHMoknj3+LxNIf6pipAhTd:SaoVbnzYxOuTd
- TLSH T19A4387346AD51672E37B9E7586F251CAA87DBC233D03680D4071F7440AB3FD2ADA1A4E
- MD5 SHA1 SHA512 SSDEEP TLSH