stormser | b972627884589d0cd090426f83b2d4063068df2c6c366c975d70bb047e0547f8

General

Target
2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
Size 60KB
Sample260701-sh684agy4k
SHA256 b972627884589d0cd090426f83b2d4063068df2c6c366c975d70bb047e0547f8
MD5 8ec9febb0b136671a50f1e934bf293b6
SHA1 e8afe95e8e38f0ce778f448d4123bb804a1ebb92
SHA512 360eb97ba1e6acb4ccfe532270ba1d51aaee4c88b2d332dcb3a96bf65bf19889c0395e5493e0f0ff5008a6bfa74527f63c9510dd434994e902a76b88feb36326
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwnEY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroy4/CFsrd
TLSH
T1BA53F9834BDE5CF2F791123108794AB9927B9AD4910EBE9FBF90CD540037692E53E10B
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 2 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c560-3.dat	family_stormser
behavioral2/files/0x000e00000001c561-6.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 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\{9ED331CE-7264-4052-8A17-CA4F485E0769}\stubpath = "C:\\Windows\\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe"	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}\stubpath = "C:\\Windows\\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe"	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{9ED331CE-7264-4052-8A17-CA4F485E0769}	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe

Executes dropped EXE 3 IoCs

pid	Process
6080	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe
460	{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
852	{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
File created	C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.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	{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{9ED331CE-7264-4052-8A17-CA4F485E0769}.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-1-5-21-1991999443-3181470666-3272020885-1000\{D19DEABF-E650-4330-A356-F2A38282E474}	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 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2252	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	6080	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe
Token: SeShutdownPrivilege	1032	explorer.exe
Token: SeCreatePagefilePrivilege	1032	explorer.exe
Token: SeShutdownPrivilege	1032	explorer.exe
Token: SeCreatePagefilePrivilege	1032	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5892	sihost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 6080	2252	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe	88
PID 2252 wrote to memory of 5264	2252	2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe	89
PID 6080 wrote to memory of 460	6080	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe	90
PID 6080 wrote to memory of 5456	6080	{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe	91
PID 5892 wrote to memory of 1032	5892	sihost.exe	97
PID 1032 wrote to memory of 852	1032	explorer.exe	98

C:\Users\Admin\AppData\Local\Temp\2026-07-01_8ec9febb0b136671a50f1e934bf293b6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-01_8ec9febb0b136671a50f1e934bf293b6_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:2252
- C:\Windows\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe
  C:\Windows\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.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:6080
- - C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
    C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:460
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{DBEDE~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5456
- 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:5264

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5892
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
    "C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:852

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

{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe

Path C:\Windows\{9ED331CE-7264-4052-8A17-CA4F485E0769}.exe
Size 60KB
SHA256 596f67f96adb3759bafbe5599cc7ee98c6468e94df15b2a57556c39b9381d0c0
MD5 6137fcce32f57abfa45fb66e5b9650df
SHA1 4d6a1a418b7845fedf7a7bcc6658c6baa1856f34
SHA512 90006cd053cbea39db7122cdccfc61ead3d21655d1cd3f3965c0e60ffe282a092c8c5440b67b8bd32d9d98c1da43dfdc12b99a7c47b72d880a33490f3bf94ed5
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwi5Y04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroiL4/CFsrd
TLSH
T11D53F9834BDE9CF2F791123108794AB9927B9AD4910EBE9FBF90CD540037692E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

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{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe

Path C:\Windows\{DBEDE705-267E-4861-B8AF-DFC05842DCE0}.exe
Size 60KB
SHA256 26d3651bcc561e30286919837acb85da0566cf76cc63281e05a09c9029c70f52
MD5 fa8d6c9c0e6a66851891e3a47e39280a
SHA1 0314a27c5986d8fa2ff85e341f1fba4db942b4e2
SHA512 624394fae2492001d07d9933be134b2ea5185130fd371ef5158bd7268977c8ce72a22fd72c06c297a68a61ebd7d1ddbe72c00cf48d749967535d8dc5838b2c02
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwEY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroy4/CFsrd
TLSH
T14353F8834BDE5CF2F791123118794AB9927B9AC4910EBE9FBB90CD540037692E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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