Analysis
- max time kernel
150s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/09/2026, 02:52
Behavioral task
behavioral1
Sample
2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe
Resource
win10v2004-20260513-en
7 signatures
150 seconds
General
- Target 2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe
- Size 53KB
- Sample260910-dc5qraxsd1
- SHA256 fc1da5b190900f29c4c04de9150b258f9824d93ce583cd4e5767eb5d0aa2f904
- MD5 c58b3d9e9b824723326f232953195d3b
- SHA1 aff534b4e43fad0dfd55e8622fe9fb39f665fb69
- SHA512 30801dc24d9a9ee7607c2cc352badb13302bb67d24080c6cabb210b000e170acafc8c02cc6a08aa996d9e91b34b89b8bc3558ae99e9b70e78880770b12bcdc1b
- SSDEEP 384:ttJWaPmw0ypZf0UL3220EX6WbkrRWSjubh9bJHu9y62cl:nJWa+w0yppaabkrtju1u1
- TLSH T16E33B37946022D7DF22ACE3025358C3BB275ED1323E507C3595AF9B28879DB29B2E741
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/5356-0-0x0000000000400000-0x000000000040F000-memory.dmp UPX behavioral2/files/0x001100000001b303-5.dat UPX behavioral2/memory/5356-10-0x0000000000400000-0x000000000040F000-memory.dmp UPX behavioral2/memory/4356-11-0x0000000000400000-0x000000000040F000-memory.dmp UPX - Executes dropped EXE 1 IoCs
pid Process 4356 fmujp.exe -
resource yara_rule behavioral2/memory/5356-0-0x0000000000400000-0x000000000040F000-memory.dmp upx behavioral2/files/0x001100000001b303-5.dat upx behavioral2/memory/5356-10-0x0000000000400000-0x000000000040F000-memory.dmp upx behavioral2/memory/4356-11-0x0000000000400000-0x000000000040F000-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 2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fmujp.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5356 wrote to memory of 4356 5356 2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-09-08_c58b3d9e9b824723326f232953195d3b_elex_upatre_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5356 -
C:\Users\Admin\AppData\Local\Temp\fmujp.exe"C:\Users\Admin\AppData\Local\Temp\fmujp.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4356
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\fmujp.exe
- Size 53KB
- SHA256 4e66c75c6bdeee32f1ef3e46cf00528813e28e7b317360129d34e68fc15c9d3b
- MD5 50a6eae91375185befd0e44c46ab2f7f
- SHA1 ab1ffcd4b1dbaaf185f4437922ef0f0239a27b7c
- SHA512 cf914b4af9e2d8a80235ea664b5bf7e18fac3b364a3ef1e3738163af89e66254e677be62fadd4f49b805ad10ede47982ba5bbb123431f1cd5ed945b06c1c40ca
- SSDEEP 384:ttJWaPmw0ypZf0UL3220EX6WbkrRWSjubh9bJHu9y62clO:nJWa+w0yppaabkrtju1u1k
- TLSH T1D733B27946022D7DF22ACE3025358C3BB235ED1323E507C3595AF9B28879DB29B2E741
- MD5 SHA1 SHA512 SSDEEP TLSH