stormser | 65d9b31f9f0d0d5e6af71641b6a8f5c154bd856e2b9a2796c8122fe88a516e4c

General

Target
2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
Size 79KB
Sample261027-snvr9adh32
SHA256 65d9b31f9f0d0d5e6af71641b6a8f5c154bd856e2b9a2796c8122fe88a516e4c
MD5 6ac9884362ef133387a656b33cf6042c
SHA1 6daa79c5d8465eead2c566edcbf692336a88a8ee
SHA512 e4c1f7ff3c4ab8058bc88f0c61169389acdf98a850b2d5b49df32c95c7e9874bbafed92327db1b403b82b7146d17797096f95329f7aa077dd1c2164024f3da9f
SSDEEP 768:4vw9816vhKQLroe4/wQzXOQ69zbjlAAX5e9zz:wEGh0oelGizbR9Xwzz
TLSH
T1A1835CD38EAC4483FDE6697012B8D9A77C3E97C61504799B6B91FD5408A33C1EB3411E
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 5 IoCs

resource	yara_rule
behavioral1/files/0x000f000000024437-3.dat	family_stormser
behavioral1/files/0x0008000000024428-5.dat	family_stormser
behavioral1/files/0x000800000002443f-10.dat	family_stormser
behavioral1/files/0x0009000000024428-15.dat	family_stormser
behavioral1/files/0x0002000000021f53-17.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 10 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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2CE4FC41-BC8F-48df-8135-999D29966FDA}\stubpath = "C:\\Windows\\{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe"	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{3FED2709-ED33-49c4-B856-C9B9562080AB}	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0DDFC7AB-B383-4335-A85A-E572A738AECE}\stubpath = "C:\\Windows\\{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe"	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{493F6F72-EEC6-40d1-8B69-22A7AA677808}\stubpath = "C:\\Windows\\{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe"	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{3FED2709-ED33-49c4-B856-C9B9562080AB}\stubpath = "C:\\Windows\\{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe"	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}\stubpath = "C:\\Windows\\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe"	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0DDFC7AB-B383-4335-A85A-E572A738AECE}	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{493F6F72-EEC6-40d1-8B69-22A7AA677808}	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2CE4FC41-BC8F-48df-8135-999D29966FDA}	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe

Executes dropped EXE 5 IoCs

pid	Process
2120	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
2140	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
1148	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
1040	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
2292	{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
File created	C:\Windows\{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
File created	C:\Windows\{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
File created	C:\Windows\{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
File created	C:\Windows\{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe

Executes a command shell one-liner 1 TTPs 5 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
3264	cmd.exe
1112	cmd.exe
4968	cmd.exe
4676	cmd.exe
4288	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.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	{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4164	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2120	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
Token: SeIncBasePriorityPrivilege	2140	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
Token: SeIncBasePriorityPrivilege	1148	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
Token: SeIncBasePriorityPrivilege	1040	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4164 wrote to memory of 2120	4164	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe	91
PID 4164 wrote to memory of 4968	4164	2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe	92
PID 2120 wrote to memory of 2140	2120	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe	93
PID 2120 wrote to memory of 4676	2120	{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe	94
PID 2140 wrote to memory of 1148	2140	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe	97
PID 2140 wrote to memory of 4288	2140	{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe	98
PID 1148 wrote to memory of 1040	1148	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe	99
PID 1148 wrote to memory of 3264	1148	{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe	100
PID 1040 wrote to memory of 2292	1040	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe	101
PID 1040 wrote to memory of 1112	1040	{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe	102

C:\Users\Admin\AppData\Local\Temp\2026-10-26_6ac9884362ef133387a656b33cf6042c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-26_6ac9884362ef133387a656b33cf6042c_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:4164
- C:\Windows\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
  C:\Windows\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.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:2120
- - C:\Windows\{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
    C:\Windows\{0DDFC7AB-B383-4335-A85A-E572A738AECE}.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:2140
  - - C:\Windows\{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
      C:\Windows\{493F6F72-EEC6-40d1-8B69-22A7AA677808}.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:1148
    - - C:\Windows\{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
        
        C:\Windows\{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
        5⤵
        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:1040
      - C:\Windows\{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe
        
        C:\Windows\{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:2292
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{2CE4F~1.EXE > nul
        6⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:1112
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{493F6~1.EXE > nul
        5⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:3264
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{0DDFC~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:4288
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{8C4AE~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:4676
- 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:4968

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

{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe

Path C:\Windows\{0DDFC7AB-B383-4335-A85A-E572A738AECE}.exe
Size 79KB
SHA256 126b1358a7930babc888bf46291428726ddeb88661497836d3b10cbb95ac6f24
MD5 42668b8a2c3328a0ea1eeed0ced03692
SHA1 75170f8ba744fb534d2375634cd86d6ace2781e7
SHA512 cc2df79478cb6ec49e8edea3e4a20b5ef7d09de9572a48bce8fb49a7edeff0a3745b3dd554ef14cdeeaa44d9074b988042d6ec7b5cdbe784d680b9183df36536
SSDEEP 768:4vw9816vhKQLroL4/wQzXOQ69zbjlAAX5e9zz:wEGh0oLlGizbR9Xwzz
TLSH
T118835CC38EAC4483FDD6697012B8D9A77C3E97C61504B99B6B95FD5408A33C1EB3411E
MD5 SHA1 SHA512 SSDEEP TLSH

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{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe

Path C:\Windows\{2CE4FC41-BC8F-48df-8135-999D29966FDA}.exe
Size 79KB
SHA256 98481e9436456763887f59a11a2bb78eaa4d1aca5ed9a52d561a1f8514ed3114
MD5 7bc2ad4aed01048d0b6a6736e3d70763
SHA1 6c134c6cf431657f56a97bc5d2ec31c33dd7214d
SHA512 79e5d69c23aedeee0b48e49c29afaba05e163cbfc30d1a724fc4103625a9154140805c2ca2b7152c644a6a635517f80113e13211ea56fb84d68b2ff3cb92b8bc
SSDEEP 768:4vw9816vhKQLro24/wQzXOQ69zbjlAAX5e9zz:wEGh0o2lGizbR9Xwzz
TLSH
T139835CC38EAC4483FDE6697012B8D9A77C3E97C61604B99B6B91FD5408A33C1EB3411E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe

Path C:\Windows\{3FED2709-ED33-49c4-B856-C9B9562080AB}.exe
Size 79KB
SHA256 99c049fffb99ad1b7cd0fb3bb369ec48715c973f6b2a2af93c7b9fadf9fd28e0
MD5 437799389da96860b4331406f06998c9
SHA1 f1b55d8cd0e6e6c2dafcafb5895def2d11b94168
SHA512 3f417f5f7b881175588d32988ee9685b376b1156e9a2bfdfe0ee7f69316b2c1ca5fe3496fdd3661616a097c4e00406c995d820a0b1ff27703c56dc9a402796ac
SSDEEP 768:4vw9816vhKQLrod4/wQzXOQ69zbjlAAX5e9zz:wEGh0odlGizbR9Xwzz
TLSH
T1FB835CD38EAC4483FDE6697012B8D9A77C3E97C61604B99B6B91FD5408A33C1EB3411E
MD5 SHA1 SHA512 SSDEEP TLSH

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{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe

Path C:\Windows\{493F6F72-EEC6-40d1-8B69-22A7AA677808}.exe
Size 79KB
SHA256 abc7fb04790ff12288640812c579ccdd4d7d25fdcdd7dd531f668456eb28e30a
MD5 656b96d2a832dc2f8d7d3ca7a43af8d6
SHA1 0ebd779c5d39d69f1b2751a8f17101edfa0ef319
SHA512 3a2b8089cf2fade112af6e1c615586c4117a1c8ca569f917484ef8f830d5426a296768313cbd01fcd5ab785caf9540e2b203af82e1f59765dc9a8558ea289ec0
SSDEEP 768:4vw9816vhKQLrok4/wQzXOQ69zbjlAAX5e9zz:wEGh0oklGizbR9Xwzz
TLSH
T17A835CD38EAC4483FDE6697012B8DAA77C3E97C61504799B6B91FD5408A33C1EB3411E
MD5 SHA1 SHA512 SSDEEP TLSH

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{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe

Path C:\Windows\{8C4AE286-2F24-4f6a-82C1-3E7A29C92861}.exe
Size 79KB
SHA256 3a15407c4f071a4d309edb90ec78ffd961662c4a8f79624aa1aed72b9e5a0e8b
MD5 c6ad4eb60ada3abaab253a7b685a9b9e
SHA1 fac0c73aec04cab0ce469164cadfed5a09d2f451
SHA512 f77328163ceb5276cf1744d59bb65d75670c362b2e20e79006224ad5948d33a7495a064410ea9673cb9cba38fee63f304e6a02e325f13f0011f1fc16e06b3878
SSDEEP 768:4vw9816vhKQLroQ4/wQzXOQ69zbjlAAX5e9zz:wEGh0oQlGizbR9Xwzz
TLSH
T13E835CD38EAC4483FDE6697012B8DAA77C3E97C61504B99B6B91FD5408A33C1EB3411E
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