stormser | 0ee99cc73c0b1a285e99962908fa5108bcf9ce091657a92f94024d1609ab23a1

General

Target
2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
Size 60KB
Sample260629-dset9sbz8x
SHA256 0ee99cc73c0b1a285e99962908fa5108bcf9ce091657a92f94024d1609ab23a1
MD5 c18e0eac73d9b36828b26fb4e8081fc6
SHA1 01f1efde004c60a3637c85255df129d51be3d20c
SHA512 32234889b848da0d12fe24af58d65caf5e2fc067cd9c743c1350c8b23cf7aa1ce334a79d338d3f09bc8389984dad8f7c21581bfb6a5b8884ba082d787dcc4af4
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwvbY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLro14/CFsrd
TLSH
T1B05309834BDE5CF2F791123108794AB9927B9AC4910EBE9FBF90CD540037692E53E10B
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 3 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c59d-2.dat	family_stormser
behavioral2/files/0x000e00000001c59e-6.dat	family_stormser
behavioral2/files/0x000f00000001c59d-13.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}\stubpath = "C:\\Windows\\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe"	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{60939D17-5888-4748-BEB4-9A6D06471DB9}	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{60939D17-5888-4748-BEB4-9A6D06471DB9}\stubpath = "C:\\Windows\\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe"	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}\stubpath = "C:\\Windows\\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe"	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe

Executes dropped EXE 4 IoCs

pid	Process
5916	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
2016	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
2736	{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
5752	{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
File created	C:\Windows\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
File created	C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_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	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{60939D17-5888-4748-BEB4-9A6D06471DB9}.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-1-5-21-28459746-3881314244-166055492-1000\{FBFF3A4B-83CA-4AE8-8888-0C357C75B875}	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 7 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1296	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	5916	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
Token: SeIncBasePriorityPrivilege	2016	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
Token: SeShutdownPrivilege	5912	explorer.exe
Token: SeCreatePagefilePrivilege	5912	explorer.exe
Token: SeShutdownPrivilege	5912	explorer.exe
Token: SeCreatePagefilePrivilege	5912	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5424	sihost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 5916	1296	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe	89
PID 1296 wrote to memory of 1288	1296	2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe	90
PID 5916 wrote to memory of 2016	5916	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe	91
PID 5916 wrote to memory of 3540	5916	{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe	92
PID 2016 wrote to memory of 2736	2016	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe	93
PID 2016 wrote to memory of 3952	2016	{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe	94
PID 5424 wrote to memory of 5912	5424	sihost.exe	99
PID 5912 wrote to memory of 5752	5912	explorer.exe	100

C:\Users\Admin\AppData\Local\Temp\2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-27_c18e0eac73d9b36828b26fb4e8081fc6_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:1296
- C:\Windows\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
  C:\Windows\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.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:5916
- - C:\Windows\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
    C:\Windows\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.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:2016
  - - C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
      C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2736
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{7E8A4~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:3952
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{6CE89~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3540
- 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:1288

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5424
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5912
- - C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
    "C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5752

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1464

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

{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe

Path C:\Windows\{60939D17-5888-4748-BEB4-9A6D06471DB9}.exe
Size 60KB
SHA256 2bb7399099416e7378c3895fa5d529b92f9ff57aa443211d57a84d58eb9bf05a
MD5 e250d7d9f4bdc13073aa7f6bba0861d0
SHA1 cb25cb0183cfa2a8cf6ec7f6e9ee4863268cbc27
SHA512 fe6ffa3d91a32bf601226fbd5fc5c1c185d625a908a050d4675f23a0292377c51300624246162e13f51261d388c91aeb9fa59b7a9e8bfd5b542a257e68ea7c01
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwH5Y04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroHL4/CFsrd
TLSH
T1615308834BDE9CF2F791123108794AB9927B9AC4910EBE9FBF90CD540037292E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

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{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe

Path C:\Windows\{6CE89AF5-13DB-4b24-B37A-DD4A97493EE8}.exe
Size 60KB
SHA256 3b4747e66fb920d7d5e170850168afbd6b25c5f9f34d3a70ebdb999fa6a8fc0b
MD5 ebed3b07349f5992efc7f6ddd3b19e3f
SHA1 28127609a16dfca81d226cf731a68c0aef0c09a0
SHA512 25c56ddb8ea6bf6f53baf5519800eaca1971b99f18dff1d58a834024a87e8a14a19a8aecc1c508cbea225c674139a7018263715c457c0f032f5c750550086012
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwtY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLro/4/CFsrd
TLSH
T1C55309834BDE5CF2F791123108794AB9927B9AD4910EBE9FBF90CD140037692E53E10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe

Path C:\Windows\{7E8A4F82-17EF-4be8-94A0-19D5EA8DFBA4}.exe
Size 60KB
SHA256 95c8d01453c6573c9f0e64c63d487b6f1a51bd625e86fd71080c2682ec1d9942
MD5 77b1a1cb186c9823152c1f7ef18cc13f
SHA1 93d4845f67b646814372408fd6498b1b192238f6
SHA512 bb2ebdb04c76695f9936e6545811499cb20ce88d020e8b0a96121794ba7ef7a56ce63268f23b48a23b78f38240865fea8193f2d047ae46e95d3a41b0eddd1497
SSDEEP 192:XbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwxY04/CFxyNhoy5t:XbLwOs8AHsc4sMfwhKQLroD4/CFsrd
TLSH
T14A5309834BDE9CF2F791127108794AB9927B9AD4910EBE9FBF90CD540037692E53E10B
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