stormser | da0031eec36196e1e634a39de83378f189852a10bd78858019dcaed75dc4bcbb

General

Target
2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
Size 380KB
Sample260810-shseyabq21
SHA256 da0031eec36196e1e634a39de83378f189852a10bd78858019dcaed75dc4bcbb
MD5 9ddcbca3131fb637bb16dd80dd78c54f
SHA1 e5d77aed41e768685cb601029716cac603997826
SHA512 8c1b06ed9a7326b240e57b184547afb56dbf8cb9b87d2d5c2129dc61c152a23662a64aef5a356c1e642cf340c0eda40c246fe990e1809f8f9fa20de8d8c79b44
SSDEEP 3072:mEGh0oZlPOiDOe2MUVg3bHrH/HqOYGb+4QnZZIne+rcC4F0fJGRIS8Rfd7eQEcGw:mEGrl7Oe2MUVg3v2IneKcAEcARy
TLSH
T13384953D6FE5D5B5E0B34B704DB5C101A9BBBE913931CE1F108A511E8C21AE09DA6B3B
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 2 IoCs

resource	yara_rule
behavioral1/files/0x000300000001e6a5-2.dat	family_stormser
behavioral1/files/0x000300000001e6e7-7.dat	family_stormser

Auto-generated rule 2 IoCs

resource	yara_rule
behavioral1/files/0x000300000001e6a5-2.dat	GoldenEyeRansomware_Dropper_MalformedZoomit
behavioral1/files/0x000300000001e6e7-7.dat	GoldenEyeRansomware_Dropper_MalformedZoomit

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.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}\stubpath = "C:\\Windows\\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe"	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CBAC9F86-0767-407b-A763-0098C7669AF0}	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CBAC9F86-0767-407b-A763-0098C7669AF0}\stubpath = "C:\\Windows\\{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe"	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe

Executes dropped EXE 2 IoCs

pid	Process
4244	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe
1344	{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
File created	C:\Windows\{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe

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.

execution

Windows Command Shell

T1059.003

pid	Process
4708	cmd.exe
4148	cmd.exe

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	964	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
Token: SeIncBasePriorityPrivilege	4244	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 4244	964	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe	87
PID 964 wrote to memory of 4708	964	2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe	88
PID 4244 wrote to memory of 1344	4244	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe	89
PID 4244 wrote to memory of 4148	4244	{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-10_9ddcbca3131fb637bb16dd80dd78c54f_elex_goldeneye_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:964
- C:\Windows\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe
  C:\Windows\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.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:4244
- - C:\Windows\{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe
    C:\Windows\{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1344
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{A33BF~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:4148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4708

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

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Downloads

{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe

Path C:\Windows\{A33BFB25-2140-4fb1-B229-4BFEF25035E9}.exe
Size 380KB
SHA256 3bb26e2d4d2884ef19bbf196192d48410b5b6de0c7e1532b82e73822d6b593d1
MD5 a2ed2b6590579a574fd79374aef74d39
SHA1 3f24cd609d3bfd7441ad155d434df15d38e3c511
SHA512 45be86204ffb6124ecf3d6bd6252d96e5bd970bf74b73938dcf008e812df6bf9ad0732fc8116247a0ca017e8a9ab0ef2711a602f10b955b2c400efeefd3246e6
SSDEEP 3072:mEGh0ovlPOiDOe2MUVg3bHrH/HqOYGb+4QnZZIne+rcC4F0fJGRIS8Rfd7eQEcGw:mEGBl7Oe2MUVg3v2IneKcAEcARy
TLSH
T1CF84953D6FE5D5B5E0B34B704DB5C101A9BBBE913931CE1F108A511E8C21AE09DA6B3B
MD5 SHA1 SHA512 SSDEEP TLSH

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{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe

Path C:\Windows\{CBAC9F86-0767-407b-A763-0098C7669AF0}.exe
Size 380KB
SHA256 6579f5f46103fa13281df5f992cfae476932bc50f543258b61193037e86470ee
MD5 6178645ce903ceb85ffcea74a48ee8c3
SHA1 3b57bd8914b20a5193870164077b36e669237d04
SHA512 b807763e64301216a3b80cf1673203485f6067bb0668c93a428cee727b5c05945cb1dd1998e3d027e1dd4f6e5a2d7b040a030abb5ef93a3e2f4dad930e108f79
SSDEEP 3072:mEGh0o5lPOiDOe2MUVg3bHrH/HqOYGb+4QnZZIne+rcC4F0fJGRIS8Rfd7eQEcGw:mEGvl7Oe2MUVg3v2IneKcAEcARy
TLSH
T17E84953D6FE5D5B5E0B34B704DB5C101A9BBBE913931CE1F108A511E8C21AE09DA6B3B
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads