stormser | 4b53e09c5628fd28335a115f49ec096cfcc2fbd29096ce066040222068dd78fd

General

Target
2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
Size 60KB
Sample260629-qd5tcses21
SHA256 4b53e09c5628fd28335a115f49ec096cfcc2fbd29096ce066040222068dd78fd
MD5 af68dca031b8f70407623c99a9610731
SHA1 a92dc892dff635bdbd36b302c49f9a0aadb209b2
SHA512 3613c3adb306ffaba440e80b078c4578dcce013d792cdf1501a1bdea8150093f148648935457f60f92b07aa96c4beec07bf3e9769741e11a9d9f1de9b933148d
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLrog4/CFsrdHWMZo:vvw9816vhKQLrog4/wQpWMZo
TLSH
T10C533B830F997CF2F7810175047A8B79926B59D4D14FFE9BBF90CC194436651E83E60A
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/0x00080000000167e6-3.dat	family_stormser
behavioral2/files/0x000e00000001c45b-6.dat	family_stormser
behavioral2/files/0x000d00000001c45e-13.dat	family_stormser

Detects Windows executables referencing non-Windows User-Agents 3 IoCs

resource	yara_rule
behavioral2/files/0x00080000000167e6-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x000e00000001c45b-6.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x000d00000001c45e-13.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6140B7CE-8254-46c5-A810-512B35238A42}	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6140B7CE-8254-46c5-A810-512B35238A42}\stubpath = "C:\\Windows\\{6140B7CE-8254-46c5-A810-512B35238A42}.exe"	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DD103837-B4E1-478c-9554-DD22FC9B9B28}	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{DD103837-B4E1-478c-9554-DD22FC9B9B28}\stubpath = "C:\\Windows\\{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe"	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}\stubpath = "C:\\Windows\\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe"	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe

Executes dropped EXE 4 IoCs

pid	Process
1428	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
5832	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
1464	{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe
1180	{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\{6140B7CE-8254-46c5-A810-512B35238A42}.exe	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
File created	C:\Windows\{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
File created	C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.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	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.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	{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.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-1-5-21-2289519114-2956110270-1748446682-1000\{A9BDFD40-7BEC-4720-B818-49E9524E6611}	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	1772	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	1428	{6140B7CE-8254-46c5-A810-512B35238A42}.exe
Token: SeIncBasePriorityPrivilege	5832	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
Token: SeShutdownPrivilege	2064	explorer.exe
Token: SeCreatePagefilePrivilege	2064	explorer.exe
Token: SeShutdownPrivilege	2064	explorer.exe
Token: SeCreatePagefilePrivilege	2064	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5012	sihost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 1428	1772	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe	89
PID 1772 wrote to memory of 2996	1772	2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe	90
PID 1428 wrote to memory of 5832	1428	{6140B7CE-8254-46c5-A810-512B35238A42}.exe	91
PID 1428 wrote to memory of 2188	1428	{6140B7CE-8254-46c5-A810-512B35238A42}.exe	92
PID 5832 wrote to memory of 1464	5832	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe	94
PID 5832 wrote to memory of 6088	5832	{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe	95
PID 5012 wrote to memory of 2064	5012	sihost.exe	100
PID 2064 wrote to memory of 1180	2064	explorer.exe	101

C:\Users\Admin\AppData\Local\Temp\2026-06-26_af68dca031b8f70407623c99a9610731_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-26_af68dca031b8f70407623c99a9610731_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:1772
- C:\Windows\{6140B7CE-8254-46c5-A810-512B35238A42}.exe
  C:\Windows\{6140B7CE-8254-46c5-A810-512B35238A42}.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:1428
- - C:\Windows\{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
    C:\Windows\{DD103837-B4E1-478c-9554-DD22FC9B9B28}.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:5832
  - - C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe
      C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1464
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{DD103~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:6088
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{6140B~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2188
- 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:2996

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2064
- - C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe
    "C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1180

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

{6140B7CE-8254-46c5-A810-512B35238A42}.exe

Path C:\Windows\{6140B7CE-8254-46c5-A810-512B35238A42}.exe
Size 60KB
SHA256 38edd41915068045f4e4ed995f4c26ab0cf2fbb15cccc0c61bc12a6c47d721c1
MD5 bbb76fc7f753ea5730160e1e86f0e8b1
SHA1 b5f2f2a1f4af18792a957e536fa659ca36dfa9cc
SHA512 0d80a873f91dc47c143e8bb5bfc9ae326c46a1fd293654e9b084a7ff5675fb39ef7a4f0bd688fabb7a3fab5ee32857d734fbf5138bc42f9b0a70f9d1ac504141
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLro84/CFsrdHWMZo:vvw9816vhKQLro84/wQpWMZo
TLSH
T14B533B830F997CF2FB810175043A8B7992AB59D4D14FFE9BBF90CC194436691E83E60A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe

Path C:\Windows\{B0F33D77-3B74-4aae-B9CE-C9D01C3DD1DD}.exe
Size 60KB
SHA256 85c6c2a2838b805d97da51c757931586e4914aebe061ef90ce9a6e757810f8b3
MD5 74d62e60554ce665c18a68c170346873
SHA1 09bf221da0f3de8cdbbab14075e2c4ed85a0a591
SHA512 7eb0f31b77bb7254231c3e1c724e534c7562177877a42a648c5915b06183f519aa58079e33852593cb4fe4e9107281870ced4a907500fec59df07697420f1a79
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLrov4/CFsrdHWMZo:vvw9816vhKQLrov4/wQpWMZo
TLSH
T1F9533A830F997CF2FB810175047A8BB992AB59D4D14FFE9BBF90CC194436651E83E60A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe

Path C:\Windows\{DD103837-B4E1-478c-9554-DD22FC9B9B28}.exe
Size 60KB
SHA256 ced61bf67e161b7954680d218f3fe25dd098585646c5318b607e01fc46482240
MD5 04a1eaa40d172877224554948821501e
SHA1 3a96eade444f481d976da674c6737d5124633af5
SHA512 8a58d2f6cf2601e4938757f19b8406e6db63e93807c6f0069d10309a50f05c74afdcb5ba1190c22b70aa016ee655880f966e8b707dfb28257498f2f5f0076d8a
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroP4/CFsrdHWMZo:vvw9816vhKQLroP4/wQpWMZo
TLSH
T1DD533A830F997CF2FB810175047A8BB992AB59D4D14FFE9BBF90CC194436651E83E60A
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