stormser | 1f9f47af7b15cd73f3a40f41caa5dfdb266190c1ebc36e3e6d348efd9172b51c

General

Target
2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
Size 59KB
Sample260719-e11x5set81
SHA256 1f9f47af7b15cd73f3a40f41caa5dfdb266190c1ebc36e3e6d348efd9172b51c
MD5 36a99fc3a3e242dfef41e50564a76b40
SHA1 41159368e01553e5939515cae3cfb66c6b2b9f06
SHA512 38b420a472b6ca81b4e5ea5fbe9f991eaac9a7acc6ddba135570b16d4c0048777cfa675e80385bc07d6e82afa85bff76e02574abca560f8512c035996b1ca25d
SSDEEP 384:N/bLwOs8AHsc4sMfwhKQLro14/CFsrdHWMZ:N/vw9816vhKQLro14/wQpWMZ
TLSH
T13B433B830F8978F2FB810175087A8BB9976B59D4D15FFE9BBF90CC094436651E83E60A
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 2 IoCs

resource	yara_rule
behavioral1/files/0x00050000000006cf-2.dat	family_stormser
behavioral1/files/0x00030000000168df-6.dat	family_stormser

Detects Windows executables referencing non-Windows User-Agents 2 IoCs

resource	yara_rule
behavioral1/files/0x00050000000006cf-2.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/files/0x00030000000168df-6.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}\stubpath = "C:\\Windows\\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe"	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{60CFA911-DF94-44dd-A63E-5065CA88DF35}	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{60CFA911-DF94-44dd-A63E-5065CA88DF35}\stubpath = "C:\\Windows\\{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe"	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe

Executes dropped EXE 2 IoCs

pid	Process
2416	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe
3408	{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
File created	C:\Windows\{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe

Executes a command shell one-liner 1 TTPs 2 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
3672	cmd.exe
3236	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.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	{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2908	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2416	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2416	2908	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe	89
PID 2908 wrote to memory of 3672	2908	2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe	90
PID 2416 wrote to memory of 3408	2416	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe	93
PID 2416 wrote to memory of 3236	2416	{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe	94

C:\Users\Admin\AppData\Local\Temp\2026-07-19_36a99fc3a3e242dfef41e50564a76b40_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-19_36a99fc3a3e242dfef41e50564a76b40_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:2908
- C:\Windows\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe
  C:\Windows\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.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:2416
- - C:\Windows\{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe
    C:\Windows\{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3408
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{8E787~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:3236
- 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:3672

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

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Downloads

{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe

Path C:\Windows\{60CFA911-DF94-44dd-A63E-5065CA88DF35}.exe
Size 59KB
SHA256 3e8f20e0fa2f4abd73d3af1bd5a8f844bf3be572015de3a2b5cd7ba7bcbb75db
MD5 106509b30d0378b1c3023a8fe25c52d3
SHA1 c7d975829ac39714704dff820d82f8e939d9acac
SHA512 ffcb2f07faba116dacfbaa78ac07131278e105816f10d93697de4eee942f2fbd5bd106b16417da34fcb9d1b5217884291d0c74246e38f3c3790daefa27db61a6
SSDEEP 384:N/bLwOs8AHsc4sMfwhKQLrog4/CFsrdHWMZ:N/vw9816vhKQLrog4/wQpWMZ
TLSH
T134433B834F897CF2FB810175087A8BB9966B59D4D14FFE9BBF90CC094436641E83E20A
MD5 SHA1 SHA512 SSDEEP TLSH

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{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe

Path C:\Windows\{8E7873D2-D361-4c9e-8581-DF8010DA8DDB}.exe
Size 59KB
SHA256 6631ae0bf451c1199329dfcf5f8076ce131bae228ddb0e09df1ae4eee0d6fac2
MD5 2c4c9d2c7da8a6dd5249299cd0e4d9f1
SHA1 1b5ac887a2e6ef8d0e0266f23709fb903d3af6a3
SHA512 bf44552dff0b47f76b143581314efe49ce1c03031facaf850bc35a2375d39b356f4ab3bbbe0a971bf366f09a3691d345041fd574e23d9c0d370f0dbf66433d14
SSDEEP 384:N/bLwOs8AHsc4sMfwhKQLrog4/CFsrdHWMZ:N/vw9816vhKQLrog4/wQpWMZ
TLSH
T122433A830F8978F2FB810175087A8BB9966B59D4D14FFE9BBF90CC094437641E83E60A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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