stormser | ad0bc2954b37bc5c3e7682b2a2c6d1be1eb1eda3f416a1bd0005977d920d64d2

General

Target
2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
Size 60KB
Sample260930-wh5xtastew
SHA256 ad0bc2954b37bc5c3e7682b2a2c6d1be1eb1eda3f416a1bd0005977d920d64d2
MD5 a334032613d26c9c35d2e7841646c77b
SHA1 d48aa7cea321d8df0dae48e5c34fbe831913a1c3
SHA512 ae127ba8182df8e3269d8999297ea435448f68df36f94a39143cdeb848179ddaebf7b847418c98790d6bd25414a86d65438e48b62d4738565195561463640c07
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwCY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLro44/CFsrd
TLSH
T1EA5308834BDE5CF2F791117108798AB9927B99C4950EBEDFBB90CD150037292E53A10B
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 3 IoCs

resource	yara_rule
behavioral1/files/0x000f0000000246be-2.dat	family_stormser
behavioral1/files/0x00080000000246ac-7.dat	family_stormser
behavioral1/files/0x000a000000024480-10.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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7002FC12-2312-46f0-A362-8BED5C1F76AE}	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7002FC12-2312-46f0-A362-8BED5C1F76AE}\stubpath = "C:\\Windows\\{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe"	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}\stubpath = "C:\\Windows\\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe"	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}\stubpath = "C:\\Windows\\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe"	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe

Executes dropped EXE 3 IoCs

pid	Process
2328	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
1232	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
5012	{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
File created	C:\Windows\{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
File created	C:\Windows\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe

Executes a command shell one-liner 1 TTPs 3 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
2956	cmd.exe
5916	cmd.exe
2136	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	928	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2328	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
Token: SeIncBasePriorityPrivilege	1232	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 2328	928	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe	96
PID 928 wrote to memory of 2956	928	2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe	97
PID 2328 wrote to memory of 1232	2328	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe	98
PID 2328 wrote to memory of 5916	2328	{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe	99
PID 1232 wrote to memory of 5012	1232	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe	109
PID 1232 wrote to memory of 2136	1232	{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe	110

C:\Users\Admin\AppData\Local\Temp\2026-09-29_a334032613d26c9c35d2e7841646c77b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-29_a334032613d26c9c35d2e7841646c77b_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:928
- C:\Windows\{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
  C:\Windows\{7002FC12-2312-46f0-A362-8BED5C1F76AE}.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:2328
- - C:\Windows\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
    C:\Windows\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.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:1232
  - - C:\Windows\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe
      C:\Windows\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:5012
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{66D74~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:2136
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{7002F~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:5916
- 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:2956

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

{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe

Path C:\Windows\{66D74ABD-3B3D-4ea6-B70D-7F3D53B319BF}.exe
Size 60KB
SHA256 f6bf832cc671ff3b40f809502577d882ad464215ff84c014e8e56353e0071aaf
MD5 b5297ca4b9c62421a352ce2a04a64df5
SHA1 b8c1c2c265f10db90c78334e4db98228ace4c8d2
SHA512 261b84199f4adcf207246803f9b628d2356922e0ca34d40378ad32ed02eb88bd890f1ea7a5dba2794d73d34f5bb9c6bc17260286a49795cca003a383c08a1610
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqw70Y04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLrou4/CFsrd
TLSH
T1575309834BDE5CF2F791117108798AB9927BA9C4950EBEDFBF90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe

Path C:\Windows\{7002FC12-2312-46f0-A362-8BED5C1F76AE}.exe
Size 60KB
SHA256 e258a6c242f25daa0f9bb74c4c7b8dbc4356b0adf278b7df41d26f6e831a9625
MD5 ce0ad525cfe64c7b8f65d869eab89598
SHA1 e16e6342ae4f602a00b7f231e506605e2ce279f3
SHA512 3fc1fe62c1512832bcb4818a498926e40ddf97224eaed5d41527eafcea99d3ca1548957395f04eff42dbfb09f688d52d3c2d235cafafb658ff34e432e4c8b0eb
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwCY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLro44/CFsrd
TLSH
T1595309834BEE5CF2F791113108798AB9927B99C4910EBEDFBF90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe

Path C:\Windows\{86F17161-6FA2-4ec1-BA06-8E2602713DF2}.exe
Size 60KB
SHA256 710ff3890c744f597523ac4b9a9621486aed9ea7dc24a6441f46526eef15a8fc
MD5 9a83895620dff0a4154ca09b6dc7d7f2
SHA1 cec05f0ce0a47720e44aba22aa7bb5d3cf03c099
SHA512 c51530c5c238df5230909fde3cfaa0004eb066afe7b67dd97184fd7a86741886f10028c7c6513d03d7713074428e8c3a1ee678c6c4bc5a5dd3b8df0527cd48dc
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwBY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroz4/CFsrd
TLSH
T1DF5309834BDE5CF2F791123108798AB9927B99D4950EBEDFBF90CD150037292E53A10B
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