stormser | 7d448d21e4b68cc3a09e1ed582bf41d63f9a5a0f144d1f3d497ab446661e1226

General

Target
2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
Size 90KB
Sample260809-31e8fafp2z
SHA256 7d448d21e4b68cc3a09e1ed582bf41d63f9a5a0f144d1f3d497ab446661e1226
MD5 4ae7cc5c804365ad4080d8361a59214f
SHA1 c3590355acc4063c98ec58dfc8a3225cfdd1738a
SHA512 104261ed7f23f0e404f03471d25b14900f7672b56e7e4d38083b2af726e78526abbd884faa749ad338b5bb6740e5236907d68ff1b55fcc2bfc0778207980da06
SSDEEP 768:Qvw9816vhKQLroh4/wQRNrfrunMxVFA3b7glws:YEGh0ohl2unMxVS3Hgz
TLSH
T12A93C53D5DDA103BE2B7D6B585F126E3FE66B98335091D0E46D243428C23B53AD8AC1D
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/0x00040000000006ff-2.dat	family_stormser
behavioral1/files/0x000c000000016864-6.dat	family_stormser
behavioral1/files/0x000900000001da2f-10.dat	family_stormser
behavioral1/files/0x00060000000228c5-14.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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}\stubpath = "C:\\Windows\\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe"	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}\stubpath = "C:\\Windows\\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe"	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}\stubpath = "C:\\Windows\\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe"	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}\stubpath = "C:\\Windows\\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe"	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe

Executes dropped EXE 4 IoCs

pid	Process
3768	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
3476	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
1772	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe
3356	{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
File created	C:\Windows\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
File created	C:\Windows\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
File created	C:\Windows\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.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
3336	cmd.exe
1780	cmd.exe
2228	cmd.exe
3800	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	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.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	{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3460	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	3768	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
Token: SeIncBasePriorityPrivilege	3476	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
Token: SeIncBasePriorityPrivilege	1772	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 3768	3460	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe	89
PID 3460 wrote to memory of 3336	3460	2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe	90
PID 3768 wrote to memory of 3476	3768	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe	95
PID 3768 wrote to memory of 1780	3768	{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe	96
PID 3476 wrote to memory of 1772	3476	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe	99
PID 3476 wrote to memory of 2228	3476	{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe	100
PID 1772 wrote to memory of 3356	1772	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe	107
PID 1772 wrote to memory of 3800	1772	{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe	108

C:\Users\Admin\AppData\Local\Temp\2026-08-09_4ae7cc5c804365ad4080d8361a59214f_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-09_4ae7cc5c804365ad4080d8361a59214f_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:3460
- C:\Windows\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
  C:\Windows\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.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:3768
- - C:\Windows\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
    C:\Windows\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.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:3476
  - - C:\Windows\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe
      C:\Windows\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.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\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe
        
        C:\Windows\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3356
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{C3075~1.EXE > nul
        5⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:3800
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{72DA4~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:2228
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{41591~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:1780
- 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:3336

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

Replay Monitor

Loading Replay Monitor...

Downloads

{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe

Path C:\Windows\{41591E9A-CBB5-4ad8-B9F2-C05C12DECE98}.exe
Size 90KB
SHA256 44c5fbc67814270e759cf301abae795b0911ab7f2287f55bd83d2f62d12a34ee
MD5 08f93eedcdc6ce3603a2369d9ea74739
SHA1 ff8dc48e48755cd80f8a628e4bd7fa23572b5505
SHA512 e29e68aea9b8f404d97a1ff8a22ef63146525a2b7f734cbf68f05bd4685bf275b2b91f9e03f80c83192d2cb8d17e8ab4c0a68063a5cdded9bbfe8551254e4c71
SSDEEP 768:Qvw9816vhKQLroMC4/wQRNrfrunMxVFA3b7glws:YEGh0oMCl2unMxVS3Hgz
TLSH
T16A93C53D5DDA103BE2B7D6B585F126E3FE66B98335091D0E46D243428C23B53AD8AC1D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe

Path C:\Windows\{72DA4EAB-3C66-41ee-81C8-A3EB87366EF0}.exe
Size 90KB
SHA256 4110e46b7b7a3d32e206610c21a334fe765e6f7e14cb89a047626c00d84c37f6
MD5 1a23253a2fe709383e7abedbecdfc4b8
SHA1 a2fcf783d5aaa9fefc3a6b3e2491edbe3827f44c
SHA512 f904b01dab02728c1a9a68343ada390529e52b87f7be9b360429f7c9942d3a8e79fbb3e7969783f1f42ab96e859c082146c85393baba8b5d53120f2eba3c6074
SSDEEP 768:Qvw9816vhKQLrol4/wQRNrfrunMxVFA3b7glws:YEGh0oll2unMxVS3Hgz
TLSH
T11D93C53D5DDA103BE2B7D6B585F126E3FE66B98336091D0E46D243428C23B53AD86C1D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe

Path C:\Windows\{C3075D2F-C3B1-46e0-9330-C3F7CFEEACE9}.exe
Size 90KB
SHA256 4eb87c111d846371f686c5845221796aab8e062d1a0bfc38fdb23ecec831373e
MD5 9f90c8659f4a3aa37ee8085fabc2923a
SHA1 c4ddc0be6f2201092d3a93b036e0fdbcfe950e75
SHA512 d815cad16225290b1774e8f152f1e3da696c51dd667b0946c96e201456aa75755ec373dafc349fdbb5475d64b40f91d80fdf2dfb79f7e4c0cd431a2fb6d7ca58
SSDEEP 768:Qvw9816vhKQLrohL4/wQRNrfrunMxVFA3b7glws:YEGh0ohLl2unMxVS3Hgz
TLSH
T15F93C53D5DDA103BE2B7D6B585F126E3FE66B98335091D0E46D243428C23B53AD8AC1D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe

Path C:\Windows\{F0DEF86B-9169-4675-9F68-3EF013F53FE7}.exe
Size 90KB
SHA256 9441aafbab14ee8b41c0c55baf769d148287a667d9cb074b619d68310df01c72
MD5 1fe2df5d2758d128615cdcf553b7bfd1
SHA1 df9fef9459f30d324e271c3e020e06218d6ec541
SHA512 b9560722ae68bdeac84a0438e8f75f5e2ca2d65fe470d39c76e0727d717eced65bd32eab69da2d89fb9b6e93565ab427ef06b7db325dc07c2ded277ecaa69a37
SSDEEP 768:Qvw9816vhKQLrod4/wQRNrfrunMxVFA3b7glws:YEGh0odl2unMxVS3Hgz
TLSH
T16593C53D5DDA103BE2B7D6B585F126E3FE66B98339091D0E46D243428C23B53AD8AC1D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads