stormser | ff5bc0e0dd55fc20179601186baccd460d614fdbc28014719e41ac920e1fd395

General

Target
2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
Size 60KB
Sample260706-v2edjaas6w
SHA256 ff5bc0e0dd55fc20179601186baccd460d614fdbc28014719e41ac920e1fd395
MD5 eb724cc4559d5237281e01b323d6205d
SHA1 4eb227735fb91a36199c1107dad7b46bea1a3818
SHA512 40887f7dc00171ed3f25c62f751e66b14fce2838e6001e9669f317e8665ae613bbeb848276c4f7741a8f2a8e5efc7d94dcc3f65451fc89510041b2706ddf39ae
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwWY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroc4/CFsrd
TLSH
T15E5309834BDE5CF2F791123108794AB9927B9AC4910EBE9FBF90CD140037292E53E14B
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 4 IoCs

resource	yara_rule
behavioral2/files/0x001b00000001c2a3-3.dat	family_stormser
behavioral2/files/0x000e00000001c48f-6.dat	family_stormser
behavioral2/files/0x001c00000001c2a3-13.dat	family_stormser
behavioral2/files/0x000f00000001c48f-18.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\{98848A3D-3965-450b-B1BA-813A158AF915}	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{98848A3D-3965-450b-B1BA-813A158AF915}\stubpath = "C:\\Windows\\{98848A3D-3965-450b-B1BA-813A158AF915}.exe"	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}	{98848A3D-3965-450b-B1BA-813A158AF915}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}\stubpath = "C:\\Windows\\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe"	{98848A3D-3965-450b-B1BA-813A158AF915}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}\stubpath = "C:\\Windows\\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe"	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{9110C403-D3A9-411a-B8DC-D300B3D1340B}	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{9110C403-D3A9-411a-B8DC-D300B3D1340B}\stubpath = "C:\\Windows\\{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe"	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe

Executes dropped EXE 5 IoCs

pid	Process
2544	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
2980	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
5112	{98848A3D-3965-450b-B1BA-813A158AF915}.exe
1084	{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
2976	{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
File created	C:\Windows\{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
File created	C:\Windows\{98848A3D-3965-450b-B1BA-813A158AF915}.exe	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
File created	C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe	{98848A3D-3965-450b-B1BA-813A158AF915}.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{98848A3D-3965-450b-B1BA-813A158AF915}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.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\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-2626306573-1585762579-411806764-1000\{3D11F633-BDBD-4AB1-80DF-F97BFFD2D901}	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\	explorer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1076	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2544	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
Token: SeIncBasePriorityPrivilege	2980	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
Token: SeIncBasePriorityPrivilege	5112	{98848A3D-3965-450b-B1BA-813A158AF915}.exe
Token: SeShutdownPrivilege	4248	explorer.exe
Token: SeCreatePagefilePrivilege	4248	explorer.exe
Token: SeShutdownPrivilege	4248	explorer.exe
Token: SeCreatePagefilePrivilege	4248	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
6020	sihost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 2544	1076	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe	87
PID 1076 wrote to memory of 2644	1076	2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe	88
PID 2544 wrote to memory of 2980	2544	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe	89
PID 2544 wrote to memory of 2288	2544	{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe	90
PID 2980 wrote to memory of 5112	2980	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe	91
PID 2980 wrote to memory of 2584	2980	{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe	92
PID 5112 wrote to memory of 1084	5112	{98848A3D-3965-450b-B1BA-813A158AF915}.exe	93
PID 5112 wrote to memory of 1144	5112	{98848A3D-3965-450b-B1BA-813A158AF915}.exe	94
PID 6020 wrote to memory of 4248	6020	sihost.exe	99
PID 4248 wrote to memory of 2976	4248	explorer.exe	100

C:\Users\Admin\AppData\Local\Temp\2026-07-06_eb724cc4559d5237281e01b323d6205d_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-06_eb724cc4559d5237281e01b323d6205d_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:1076
- C:\Windows\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
  C:\Windows\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.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:2544
- - C:\Windows\{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
    C:\Windows\{9110C403-D3A9-411a-B8DC-D300B3D1340B}.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:2980
  - - C:\Windows\{98848A3D-3965-450b-B1BA-813A158AF915}.exe
      C:\Windows\{98848A3D-3965-450b-B1BA-813A158AF915}.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:5112
    - - C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
        
        C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1084
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{98848~1.EXE > nul
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1144
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{9110C~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:2584
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{F5C22~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2288
- 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:2644

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:6020
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4248
- - C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
    "C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2976

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

Replay Monitor

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Downloads

{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe

Path C:\Windows\{45097C46-2165-40b6-BEC3-3808BB1A4FF2}.exe
Size 60KB
SHA256 be0bd3b6a09bc23cac88ed21eec43fc8c2bfb11c7cf7c43f5edafa64bbc01d87
MD5 08e0f23e797d01eb52a9c7e6525126b4
SHA1 5839264356f60b6fd407e818678e0c64d6d043d4
SHA512 718ddc6eeb6d41e87283bde02bc6dd81fcaeb972f328204fdb2402df164f91950a1a6559af23c63e039935ad398ea277221e6981a67d66c74af31a4e87b6c434
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwiDY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroiF4/CFsrd
TLSH
T1395309834BDE5CF2F791127108794AB9927B9AC4910EBE9FBF90CE540037692E53E14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe

Path C:\Windows\{9110C403-D3A9-411a-B8DC-D300B3D1340B}.exe
Size 60KB
SHA256 f4a1df0e94c745fb8a4b0f1f881d081a73fe6f54870d5449f1e875906b91b0ba
MD5 76f5b22a4e44c8407c9fd3cddbf7a3dd
SHA1 dc18839266698c38ec2d6979e7fada6ae0377afe
SHA512 ddbe5015f7c7fa4b1fc9bf9762b4f791bb3ddb33b9d3f9b5eccb48dd0467cfa8d50a1a0cb4e9eb9b8c7a440b0676293ce4f5d8c89822d92d8a347d0b1abb39b2
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwAY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroO4/CFsrd
TLSH
T15F5309834BDE5CF2F791123118794AB9927B9AC4910EBE9FBF90CE544037692E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{98848A3D-3965-450b-B1BA-813A158AF915}.exe

Path C:\Windows\{98848A3D-3965-450b-B1BA-813A158AF915}.exe
Size 60KB
SHA256 46ae0930fddab18d73b8587db12a9f68c815c12897af5788204b4a91858f6493
MD5 1139a7e1050b96a8eac98f1068e383b1
SHA1 de12111c7b75c7d4d486a2d222b9356164f47148
SHA512 c021fc769d5fdf608926ee03d679cfa28bd5abc2433a2359754baa0032f1e76570a5ba0b9403032cdc43004a0afeefa909bb2f66c96713befcae383a814be83f
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqweY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLrok4/CFsrd
TLSH
T1365308834BDE9CF2F791123108794AB9927B9AD4910EBE9FBF90CD140037692E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe

Path C:\Windows\{F5C22555-D43E-4922-AD1C-FA95F66B2DE9}.exe
Size 60KB
SHA256 1e372b7cd71ea2cb959bdc230629ab188aa3347f87a23727a588d585cbfb1469
MD5 fb14022ae323344c6a3abb288015ac8e
SHA1 af4f4fb24eaa54626505752d68c6df889e9c1d77
SHA512 b0d8acd70a17a41310f8081ff4f769428167fb090b3a14bbd16d891a67dd4f2b653d5f3808800611ee71a84ad67b316a99b26baf01c1e477a9310257197d8ea1
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwW5Y04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroWL4/CFsrd
TLSH
T10E5309834BDE5CF2F791127108794AB9927B9AC4910EBE9FBF90CE540037692E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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