stormser | d9b9103903ebe91258fad1fea8e9ac4d79e3e8045f98e1510ce2e4c09474178c

General

Target
2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
Size 60KB
Sample260701-e7n7xset8m
SHA256 d9b9103903ebe91258fad1fea8e9ac4d79e3e8045f98e1510ce2e4c09474178c
MD5 67f93995b28bb136e3edd98670a54653
SHA1 ed7d49953dec6f58cb66a5e90eb901b03062dcd9
SHA512 51525b9e2d90ee91798c17554f017b4413d19e0afdba46ef6dd5b1bc08a3a61918f091329ef2c2ee8cedf11b5abcf95321175443f1417debf4e375ffbf96fd57
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwEdY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroG4/CFsrd
TLSH
T1E65309834BEE9CF2F791113108798AB9927B99D4950EBEDFBF90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery 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 3 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c4e9-3.dat	family_stormser
behavioral2/files/0x000e00000001c4ec-6.dat	family_stormser
behavioral2/files/0x000f00000001c4e9-13.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 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\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}\stubpath = "C:\\Windows\\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe"	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}\stubpath = "C:\\Windows\\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe"	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}\stubpath = "C:\\Windows\\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe"	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe

Executes dropped EXE 4 IoCs

pid	Process
3644	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
2124	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
3768	{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
4312	{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
File created	C:\Windows\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
File created	C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-557124681-2609731375-3674401788-1000\{00A416B2-795B-4A98-8A5C-75FB50E062A8}	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	explorer.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3896	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	3644	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
Token: SeIncBasePriorityPrivilege	2124	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
Token: SeShutdownPrivilege	2956	explorer.exe
Token: SeCreatePagefilePrivilege	2956	explorer.exe
Token: SeShutdownPrivilege	2956	explorer.exe
Token: SeCreatePagefilePrivilege	2956	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2612	sihost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 3644	3896	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe	88
PID 3896 wrote to memory of 4372	3896	2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe	89
PID 3644 wrote to memory of 2124	3644	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe	91
PID 3644 wrote to memory of 1380	3644	{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe	92
PID 2124 wrote to memory of 3768	2124	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe	93
PID 2124 wrote to memory of 4888	2124	{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe	94
PID 2612 wrote to memory of 2956	2612	sihost.exe	99
PID 2956 wrote to memory of 4312	2956	explorer.exe	100

C:\Users\Admin\AppData\Local\Temp\2026-06-30_67f93995b28bb136e3edd98670a54653_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-30_67f93995b28bb136e3edd98670a54653_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:3896
- C:\Windows\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
  C:\Windows\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.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:3644
- - C:\Windows\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
    C:\Windows\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.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:2124
  - - C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
      C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:3768
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{DD6CE~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:4888
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{86DE6~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1380
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\2026-0~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4372

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2956
- - C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
    "C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4312

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe

Path C:\Windows\{86DE6E1E-04C7-4187-AE12-3C4F01DEEE11}.exe
Size 60KB
SHA256 9c1e689d37278022bb8dc8f31cf749ef0801960bd91e6a05a05c9c7a8546e369
MD5 d9d7504c3205011eaa28c4a758bfb7e7
SHA1 4f30bd7ff16b2726933c53304d28ba9396b4fe22
SHA512 599dd2b74c56d5dbd96dd73b3f2041f218ed8d740d28e455be8542848969a4082fe42b6bc1b49e30d7570f6905b1eb31619071bd89d982fa19c356aa41fe7865
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwXY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLrop4/CFsrd
TLSH
T1EC5309834BDE5CF2F791123108798AB9927B99C4950EBEDFBF90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe

Path C:\Windows\{B7EAFA9B-7D9B-4868-9D9C-2D520999858C}.exe
Size 60KB
SHA256 7281677473b346b8803b5514151cf40e1e44e747cf3d935403ace1c3946d2f05
MD5 e7630579430f079195fbf30b0b6858ad
SHA1 61c168dff769d0f40a99c358148935662a21ba57
SHA512 255d2f1402371630fdc921423a3dbc1832e634e5b156ac2713e02e0008db193083996cee02d827c6d24d64a73ea29ee21026b0e8bb380a5784772333f3d35aa8
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwcY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroq4/CFsrd
TLSH
T19D5308834BEE5CF2F7911231087D4AB9927B99D4950EBEDFBB90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe

Path C:\Windows\{DD6CEA29-FA71-44ab-AC10-DD62E6CB7AB5}.exe
Size 60KB
SHA256 7fed9ab16a495af4487bd73b74f211d4855a839b966bf97869e015bc512831d0
MD5 8255d9981b41b16f8433983e3425edcf
SHA1 27e8fb15a9c282b791765b517c2d479c60f4c4aa
SHA512 60f66d1a0b0b1a3f2f53e341b6af526075dd0231d7b4f815bfe0e12774793d61c8010b11924663810b5f4b57fab774b88285453b370dac6f292fe88355ffd060
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwAY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroO4/CFsrd
TLSH
T1145308834BDE9CF2F691117108798AB9927B99C4910EBEDFBB90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads