stormser | 9925c36ea8f6965c1ed4fcae2374060cf2fdcc6e2c64b3087ac32524d5e93000

General

Target
2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe
Size 60KB
Sample261027-afsc2sat2j
SHA256 9925c36ea8f6965c1ed4fcae2374060cf2fdcc6e2c64b3087ac32524d5e93000
MD5 7247c240c535059ba579b57a23dcb417
SHA1 1114befe77cf4b5467bcd1d36cffd1e2410d2e5f
SHA512 7f6ed403c8c75f50029c0db6646c0c89b4adb8a9c6737c0bdcd9a9203e746740233bb58c6092acdffff7a2cfb3a84c294ff9c1f15825566ae01963848ccfc350
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwJY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLro74/CFsrd
TLSH
T1985309834BDE5CF2F791113108798AB9927BA9C4950EBEDFBF90CD550037292E53A10B
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 4 IoCs

resource	yara_rule
behavioral1/files/0x0008000000024354-2.dat	family_stormser
behavioral1/files/0x00060000000228b0-6.dat	family_stormser
behavioral1/files/0x0008000000024466-10.dat	family_stormser
behavioral1/files/0x00070000000228b0-14.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 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\{794188DA-CEA6-41ca-9294-656892380B8F}\stubpath = "C:\\Windows\\{794188DA-CEA6-41ca-9294-656892380B8F}.exe"	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}\stubpath = "C:\\Windows\\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe"	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}\stubpath = "C:\\Windows\\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe"	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A6844072-E207-43a3-8DD2-E87B50382390}	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A6844072-E207-43a3-8DD2-E87B50382390}\stubpath = "C:\\Windows\\{A6844072-E207-43a3-8DD2-E87B50382390}.exe"	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{794188DA-CEA6-41ca-9294-656892380B8F}	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe

Executes dropped EXE 4 IoCs

pid	Process
2000	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
3696	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
1772	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
3000	{A6844072-E207-43a3-8DD2-E87B50382390}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{A6844072-E207-43a3-8DD2-E87B50382390}.exe	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
File created	C:\Windows\{794188DA-CEA6-41ca-9294-656892380B8F}.exe	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe
File created	C:\Windows\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
File created	C:\Windows\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe

Executes a command shell one-liner 1 TTPs 4 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
3828	cmd.exe
1000	cmd.exe
4664	cmd.exe
4380	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{A6844072-E207-43a3-8DD2-E87B50382390}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3468	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2000	{794188DA-CEA6-41ca-9294-656892380B8F}.exe
Token: SeIncBasePriorityPrivilege	3696	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
Token: SeIncBasePriorityPrivilege	1772	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3468 wrote to memory of 2000	3468	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe	94
PID 3468 wrote to memory of 3828	3468	2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe	95
PID 2000 wrote to memory of 3696	2000	{794188DA-CEA6-41ca-9294-656892380B8F}.exe	96
PID 2000 wrote to memory of 1000	2000	{794188DA-CEA6-41ca-9294-656892380B8F}.exe	97
PID 3696 wrote to memory of 1772	3696	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe	100
PID 3696 wrote to memory of 4664	3696	{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe	101
PID 1772 wrote to memory of 3000	1772	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe	102
PID 1772 wrote to memory of 4380	1772	{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-10-25_7247c240c535059ba579b57a23dcb417_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-25_7247c240c535059ba579b57a23dcb417_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:3468
- C:\Windows\{794188DA-CEA6-41ca-9294-656892380B8F}.exe
  C:\Windows\{794188DA-CEA6-41ca-9294-656892380B8F}.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:2000
- - C:\Windows\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
    C:\Windows\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.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:3696
  - - C:\Windows\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
      C:\Windows\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.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:1772
    - - C:\Windows\{A6844072-E207-43a3-8DD2-E87B50382390}.exe
        
        C:\Windows\{A6844072-E207-43a3-8DD2-E87B50382390}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3000
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{E252A~1.EXE > nul
        5⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:4380
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{20C8C~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:4664
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{79418~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:1000
- 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:3828

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

{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe

Path C:\Windows\{20C8C472-D5FE-49cd-BBBA-AC616B36D1E5}.exe
Size 60KB
SHA256 850f3413c90de2b81fbb269052204150765800178f317c0cf8b1491e8e2ac296
MD5 32180f65a01f4f7c31b27c7e95b84670
SHA1 20da9281917a5ab67682cf2069359d3f4a296d77
SHA512 8634b61a5511cebb0c092995eb1973904e79804a6906f44ac940cc029d8cb0c34459c8f7625de669a603bf4c9f9e93fbeebc4867a93c6dc5e2267bd08a21cc76
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwEYY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroz4/CFsrd
TLSH
T1FA53F8834BEE5CF2F691117108794AB9927B99D4950EBEDFBB90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{794188DA-CEA6-41ca-9294-656892380B8F}.exe

Path C:\Windows\{794188DA-CEA6-41ca-9294-656892380B8F}.exe
Size 60KB
SHA256 a862fcd9fbbac6b3406f947a53c57eb5a64fcae541e83f32ceb52e8bdaecc1a5
MD5 496398db2b93098b88d6be0a4657587c
SHA1 e412a222ec7944747af0fbcbc26947468d490c23
SHA512 61b250a8232110518da1ecfc5c6a3199aaa7143e97a7b8830857429d2826a46987d57a7f8ff289a14664bb02f1e378aaefc0f4552bc530fbf142a05faa2d3fb0
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwRY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroj4/CFsrd
TLSH
T18A5308834BEE5CF2F691113108798AB9927B99C4910EBEDFBF90CD154037292E43A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{A6844072-E207-43a3-8DD2-E87B50382390}.exe

Path C:\Windows\{A6844072-E207-43a3-8DD2-E87B50382390}.exe
Size 60KB
SHA256 30597b27f0e99bd20ed8577fa6e4bd0e8ad252f5cb52fcfb6bc03aad2074b2a2
MD5 44fb34add36e93dd4e7e13106460cd9a
SHA1 405dda3a16959280722b246edf2dd07197707bc2
SHA512 be14d81ffb84670d6b516fceead66059860027b314cf665989caf986f77622f482886d3107a57fad9a13384fd2080bd0675ab30da4725894a3ce697595f307b0
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqw5Y04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroL4/CFsrd
TLSH
T1735308834BEE9CF2F791117108794AB9927B99D4950EBEDFBB90CD144037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe

Path C:\Windows\{E252ACF8-4E86-49e6-B88E-491B8D92DEF0}.exe
Size 60KB
SHA256 97c04058a1015a01bb9cc9b701cbcd7928cd9fc9d8fe60b1912332545e40fcbb
MD5 43e28aadcc680a502ebf53d40cf5da86
SHA1 733291af78c5c24057bfc7a341a183b522d288bc
SHA512 be1876d8ac7bd4866a927e7768062bb9ee8935552a5677c521523c038056ae7acc17057bb7993d31d7376ea3ab98d5af829e21f6b67d5cc750a1b7b09974d6f5
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwEY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroy4/CFsrd
TLSH
T1F65309834BDE9CF2F791123108798AB9927B99C4950EBEDFBF90CD150037292E53A10B
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