stormser | 0691ab9540c70de58e60f4874ae458f8e233b75c7d098a489f31327f79593340

General

Target
2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
Size 64KB
Sample261014-e9976sfx3w
SHA256 0691ab9540c70de58e60f4874ae458f8e233b75c7d098a489f31327f79593340
MD5 d8337910eb4fa3d7ce721c7271d3ccf4
SHA1 ec04c59c631adde6c4471ba7db289363870c9d85
SHA512 621329a8cc0360ff9c4bb8cb284f745fd088c7bfeabe3623b3bfd1d9b526326b4c44fd2b062671f573a0d755bc6623d9028774cc839ea3fc4fc8b4e0ffc544a7
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroz4/CFsrdn0A9lsy4:vvw9816vhKQLroz4/wQH9lsl
TLSH
T1F2535C834BEE98F2F7D20131046D8AB98277ADC4961EBEAF7F50CE54017B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution stormser persistence worm

Malware Config

Signatures

Family: Stormser, StormDDoS, StormAttack, Stormer
Stormser aka StormDDoS, StormAttack, and Stormer is a Windows worm written in C++.
worm stormser

Detects Stormser aka Storm DDoS and StormAttack 4 IoCs

resource	yara_rule
behavioral1/files/0x000300000001e73a-2.dat	family_stormser
behavioral1/files/0x000300000001e73b-5.dat	family_stormser
behavioral1/files/0x000900000002424c-10.dat	family_stormser
behavioral1/files/0x000d000000024251-14.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}\stubpath = "C:\\Windows\\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe"	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A719E2AE-B184-4803-9756-72B654FBEB26}	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A719E2AE-B184-4803-9756-72B654FBEB26}\stubpath = "C:\\Windows\\{A719E2AE-B184-4803-9756-72B654FBEB26}.exe"	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{238EED4A-AAD4-4aab-940D-03691A846A87}	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{238EED4A-AAD4-4aab-940D-03691A846A87}\stubpath = "C:\\Windows\\{238EED4A-AAD4-4aab-940D-03691A846A87}.exe"	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6BA28E4F-6FD3-4844-B134-290375C8C24E}	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6BA28E4F-6FD3-4844-B134-290375C8C24E}\stubpath = "C:\\Windows\\{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe"	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe

Executes dropped EXE 4 IoCs

pid	Process
2384	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
4920	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
5040	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
4516	{A719E2AE-B184-4803-9756-72B654FBEB26}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{238EED4A-AAD4-4aab-940D-03691A846A87}.exe	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
File created	C:\Windows\{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
File created	C:\Windows\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
File created	C:\Windows\{A719E2AE-B184-4803-9756-72B654FBEB26}.exe	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe

Executes a command shell one-liner 1 TTPs 4 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2240	cmd.exe
4776	cmd.exe
4896	cmd.exe
3628	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{A719E2AE-B184-4803-9756-72B654FBEB26}.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	984	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2384	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
Token: SeIncBasePriorityPrivilege	4920	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
Token: SeIncBasePriorityPrivilege	5040	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 2384	984	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe	101
PID 984 wrote to memory of 2240	984	2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe	102
PID 2384 wrote to memory of 4920	2384	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe	103
PID 2384 wrote to memory of 4776	2384	{238EED4A-AAD4-4aab-940D-03691A846A87}.exe	104
PID 4920 wrote to memory of 5040	4920	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe	108
PID 4920 wrote to memory of 4896	4920	{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe	109
PID 5040 wrote to memory of 4516	5040	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe	110
PID 5040 wrote to memory of 3628	5040	{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe	111

C:\Users\Admin\AppData\Local\Temp\2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-13_d8337910eb4fa3d7ce721c7271d3ccf4_elex_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
PID:984
- C:\Windows\{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
  C:\Windows\{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
  2⤵
  - 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
  PID:2384
- - C:\Windows\{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
    C:\Windows\{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
    3⤵
    - 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
    PID:4920
  - - C:\Windows\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
      C:\Windows\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
      4⤵
      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
      PID:5040
    - - C:\Windows\{A719E2AE-B184-4803-9756-72B654FBEB26}.exe
        
        C:\Windows\{A719E2AE-B184-4803-9756-72B654FBEB26}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4516
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{2590A~1.EXE > nul
        5⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:3628
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{6BA28~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:4896
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{238EE~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:4776
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-1~1.EXE > nul
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:2240

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Active Setup

1

T1547.014

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

{238EED4A-AAD4-4aab-940D-03691A846A87}.exe

Path C:\Windows\{238EED4A-AAD4-4aab-940D-03691A846A87}.exe
Size 64KB
SHA256 aae93a8b58ee775f1b4d7521bd2812d01a1d68d408cf88f223bf2af9f8af3819
MD5 6c687c87a3642cd91dc1aee0c0443d98
SHA1 4fc7524c8f5db1e01afa5a259db8d2712e648e28
SHA512 dc11a17af12b61cd517c7a1090d0baea420b25824565879b6312d50f290e273f1989f4517c92ec1f8f0280da09e14628cd9b4ac2318732063e091f293c037a31
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroGC4/CFsrdn0A9lsy4:vvw9816vhKQLrol4/wQH9lsl
TLSH
T158535C834BEE98F2F7D24131046D8AB98277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe

Path C:\Windows\{2590AF50-03A4-4bf2-B808-4D0F2A8E4305}.exe
Size 64KB
SHA256 5f50ea7b72330edd5253d12b8816f559e51aac6ae14d6db18a9d5bdb2d45e28e
MD5 72c56f4ca4af5e1976e9c19b7003eb62
SHA1 2ceb94779cebdca2b85871d9da3b90e5cc23b859
SHA512 0a9c10aa4fde15b38693ba4dff65f03fca4ac7b88b6f19f59634c4719e92608aaf1aec58817fb9c1b71ff66b0a4c85e0173557efc653930b92a253b30a6a292e
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroG4/CFsrdn0A9lsy4:vvw9816vhKQLroG4/wQH9lsl
TLSH
T164535C834BEE98F2F7D20131046D8AB98277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe

Path C:\Windows\{6BA28E4F-6FD3-4844-B134-290375C8C24E}.exe
Size 64KB
SHA256 037fd69b90842890bf535a6e8b8cfadde8358e0b9d2fa1da106377cd58821ae1
MD5 688d7a6e09a564c81e16e44e9a86ff84
SHA1 442f6ccbbbce383290177b5f62f9076f425f3a79
SHA512 e2219ce0db2ebe09dffdafcd1823c06d6705caead4ead063802db773d00f0041ba79aab123cefe573c6de7055639d778079340d6634585074a6d1fdb95244232
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroo4/CFsrdn0A9lsy4:vvw9816vhKQLroo4/wQH9lsl
TLSH
T1D7535C834BEE9CF2F7920131046D8A798277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{A719E2AE-B184-4803-9756-72B654FBEB26}.exe

Path C:\Windows\{A719E2AE-B184-4803-9756-72B654FBEB26}.exe
Size 64KB
SHA256 3e953379d1fc2bd2cea1baf24d94ab90884051ed8c3ac33d46d31f10666646bc
MD5 29f4f12ec91e2a5634b02539fbf9fca2
SHA1 50b5229e39306a74cb8f91301890e142f28e6a51
SHA512 3e47e8d8bdf7df5a88d2757f96f922ac73985bae87d5dbf328696eeb47b740d4a6dceffa2952ee0ed635d7c9f1c0e246e382bc7ccd74ab24e3fde956a100f017
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroX4/CFsrdn0A9lsy4:vvw9816vhKQLroX4/wQH9lsl
TLSH
T18D535C834BEE98F2F7D21131046D8A799277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads