stormser | 4f4cd547935c027d35d5a1ac5e05d55a50f8cc53cccc8ffed6e1a0f36e4d674f

General

Target
2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe
Size 79KB
Sample260701-svedvaaz7x
SHA256 4f4cd547935c027d35d5a1ac5e05d55a50f8cc53cccc8ffed6e1a0f36e4d674f
MD5 4ed1e110ec7d14786f8fbc069f2d447b
SHA1 1e08c349b092a688ecf370450431a44dcce3d166
SHA512 3a3e2ffcd71c98bdcc39867c45459a9da688ad2d4abb3be8b6577a88380cf456b75327bddf1c66972d88b5d93dceb037a3778f09915ddb0c9c61d4aa37d8f4fd
SSDEEP 768:4vw9816vhKQLrou4/wQpWMZ3XOQ69zbjlAAX5e9zz:wEGh0ouloWMZ3izbR9Xwzz
TLSH
T157834CC38E6C6483FED6297012A8DAA77D3E97C65544B9976F90FC5408A33C1EB3811D
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 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c61e-3.dat	family_stormser

Detects Windows executables referencing non-Windows User-Agents 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c61e-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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\{6DB59F29-1583-4387-9A24-065CD684672A}	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6DB59F29-1583-4387-9A24-065CD684672A}\stubpath = "C:\\Windows\\{6DB59F29-1583-4387-9A24-065CD684672A}.exe"	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe

Executes dropped EXE 2 IoCs

pid	Process
3464	{6DB59F29-1583-4387-9A24-065CD684672A}.exe
1856	{6DB59F29-1583-4387-9A24-065CD684672A}.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{6DB59F29-1583-4387-9A24-065CD684672A}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{6DB59F29-1583-4387-9A24-065CD684672A}.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-1-5-21-1086369643-1618123105-2567081378-1000\{24019128-A333-41A6-A3DE-70F0A5450E95}	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 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2692	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe
Token: SeShutdownPrivilege	1508	explorer.exe
Token: SeCreatePagefilePrivilege	1508	explorer.exe
Token: SeShutdownPrivilege	1508	explorer.exe
Token: SeCreatePagefilePrivilege	1508	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2172	sihost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 3464	2692	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe	88
PID 2692 wrote to memory of 5044	2692	2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe	89
PID 2172 wrote to memory of 1508	2172	sihost.exe	94
PID 1508 wrote to memory of 1856	1508	explorer.exe	95

C:\Users\Admin\AppData\Local\Temp\2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-01_4ed1e110ec7d14786f8fbc069f2d447b_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:2692
- C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe
  C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3464
- 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:5044

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1508
- - C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe
    "C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1856

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

{6DB59F29-1583-4387-9A24-065CD684672A}.exe

Path C:\Windows\{6DB59F29-1583-4387-9A24-065CD684672A}.exe
Size 79KB
SHA256 ee1707bffa27690fb349a18aa36d51a2c8c7a41c1be9acd6560f2982f3d98491
MD5 977542b7a46a1052b1a2f29e46f9e8d8
SHA1 6335f5334b1d9eea693f9b024b8a60a251200794
SHA512 dae82b2f21e10f7b9da8bc8eae7276bc9533aa1dd5fa019399171f6a6215fafa16f56d800ea9ab0d6e50ae4577f06cd79d4484be44d3401eb28bdc37b1939cf0
SSDEEP 768:4vw9816vhKQLroF4/wQpWMZ3XOQ69zbjlAAX5e9zz:wEGh0oFloWMZ3izbR9Xwzz
TLSH
T175834CC38E6C6483FED6297012A8DAA77D3E97C65544B9976F90FC5808A33C1EB3811D
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