Analysis
- max time kernel
149s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
29/10/2026, 19:36
General
- Target 2026-10-28_bf99221d7f01b609840bdf12763dd4b2_elex_remcos_wannacry.exe
- Size 64KB
- Sample261029-ybcc2acc53
- SHA256 78da6db8a0b84d6f3d68e2b68567aa07e5648f5212c6321a1871bd76e8f54446
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 19 IoCs
- Detects Windows executables referencing non-Windows User-Agents 19 IoCs
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 12 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- Executes dropped EXE 6 IoCs
- Drops file in Windows directory 6 IoCs
- Executes a command shell one-liner 1 TTPs 6 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 13 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 6 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-10-28_bf99221d7f01b609840bdf12763dd4b2_elex_remcos_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-28_bf99221d7f01b609840bdf12763dd4b2_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\{130A8DC0-9FC1-42d6-A1DE-18E30EEAB58E}.exeC:\Windows\{130A8DC0-9FC1-42d6-A1DE-18E30EEAB58E}.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
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C:\Windows\{F429D0CF-E95B-47ab-A525-D9E9F0387311}.exeC:\Windows\{F429D0CF-E95B-47ab-A525-D9E9F0387311}.exe3⤵
- 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
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C:\Windows\{35F852A6-7E82-4466-9A0A-30E5EC0608CA}.exeC:\Windows\{35F852A6-7E82-4466-9A0A-30E5EC0608CA}.exe4⤵
- 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
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C:\Windows\{337A48C0-03D4-4c26-8A0F-2B6840FB3D54}.exeC:\Windows\{337A48C0-03D4-4c26-8A0F-2B6840FB3D54}.exe5⤵
- 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
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C:\Windows\{6EE8BE4F-7A74-4539-8D85-E80D4D9578C7}.exeC:\Windows\{6EE8BE4F-7A74-4539-8D85-E80D4D9578C7}.exe6⤵
- 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
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C:\Windows\{04A3DAC6-8470-4eb4-8B18-367808516143}.exeC:\Windows\{04A3DAC6-8470-4eb4-8B18-367808516143}.exe7⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Windows\{6EE8B~1.EXE > nul7⤵
- 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:\Windows\{337A4~1.EXE > nul6⤵
- 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:\Windows\{35F85~1.EXE > nul5⤵
- 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:\Windows\{F429D~1.EXE > nul4⤵
- 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:\Windows\{130A8~1.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
{04A3DAC6-8470-4eb4-8B18-367808516143}.exe
{130A8DC0-9FC1-42d6-A1DE-18E30EEAB58E}.exe
{337A48C0-03D4-4c26-8A0F-2B6840FB3D54}.exe
{35F852A6-7E82-4466-9A0A-30E5EC0608CA}.exe
{6EE8BE4F-7A74-4539-8D85-E80D4D9578C7}.exe
{F429D0CF-E95B-47ab-A525-D9E9F0387311}.exe
memory/216-35-0x0000000000400000-0x0000000000410000-memory.dmp
memory/216-30-0x0000000000400000-0x0000000000410000-memory.dmp
memory/1860-12-0x0000000000400000-0x0000000000410000-memory.dmp
memory/1860-16-0x0000000000400000-0x0000000000410000-memory.dmp
memory/2536-5-0x0000000000400000-0x0000000000410000-memory.dmp
memory/2536-0-0x0000000000400000-0x0000000000410000-memory.dmp
memory/2536-1-0x0000000000400000-0x0000000000410000-memory.dmp
memory/2884-9-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3116-18-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3116-22-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3116-19-0x0000000000400000-0x0000000000410000-memory.dmp
memory/4348-29-0x0000000000400000-0x0000000000410000-memory.dmp
memory/4348-25-0x0000000000400000-0x0000000000410000-memory.dmp