Analysis
- max time kernel
149s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
31/10/2026, 16:17
General
- Target 2026-10-31_0c5ef9630f9af5888109fd853464da6e_elex_remcos_wannacry.exe
- Size 64KB
- Sample261031-trkbcset9r
- SHA256 c444a43264558c33c4cf2cc1b297650174efc9ec0d1fe45db5f0430befba3e03
Malware Config
Signatures
- Family: Stormser, StormDDoS, StormAttack, Stormer
Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.
- Detects Stormser aka Storm DDoS and StormAttack 8 IoCs
- Detects Windows executables referencing non-Windows User-Agents 8 IoCs
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- Executes dropped EXE 2 IoCs
- Drops file in Windows directory 2 IoCs
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-31_0c5ef9630f9af5888109fd853464da6e_elex_remcos_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-31_0c5ef9630f9af5888109fd853464da6e_elex_remcos_wannacry.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\{20A5CEC9-8800-4c89-90F4-4074DC68B97F}.exeC:\Windows\{20A5CEC9-8800-4c89-90F4-4074DC68B97F}.exe2⤵
- Boot or Logon Autostart Execution: Active Setup
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\{2F71C5AC-E75F-48ca-BB5C-43C86BD33ED1}.exeC:\Windows\{2F71C5AC-E75F-48ca-BB5C-43C86BD33ED1}.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Windows\{20A5C~1.EXE > nul3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
-
-
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-1~1.EXE > nul2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
{20A5CEC9-8800-4c89-90F4-4074DC68B97F}.exe
{2F71C5AC-E75F-48ca-BB5C-43C86BD33ED1}.exe
memory/3436-0-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3436-1-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3436-7-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3712-6-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3712-11-0x0000000000400000-0x0000000000410000-memory.dmp
memory/4032-13-0x0000000000400000-0x0000000000410000-memory.dmp