stormser | ac8518274bca7af1de0489fea5555043cee0ddaf5d0dc6825d32fb40ee6a863f

General

Target
2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe
Size 98KB
Sample260708-wpwbyses2p
SHA256 ac8518274bca7af1de0489fea5555043cee0ddaf5d0dc6825d32fb40ee6a863f
MD5 46ecc141bcc3619e42a0452ad6f589ea
SHA1 670a4f84230612bfb0687090cc08cc0713bee615
SHA512 c8cb29816be74820c8214b3aaca19102af09eadd3139a7faff7e593bae992fff45be6445609aaee65fd4594c9c2b04dcc3fa31b62ce4ed2a6232f4db7f458f3f
SSDEEP 768:5vw9816thKQLrol4/wQkNrfrunMxVFA3b7glws:lEG/0ollbunMxVS3Hgz
TLSH
T1F4A36039DDFB30B6E977D57489F125B2FE66ED4235090D0E0582C3426E22B52AF86C1E
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 5 IoCs

resource	yara_rule
behavioral2/memory/3104-0-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/3104-1-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/3152-6-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/3104-7-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/files/0x000d00000001c5e1-5.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 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\{F60F56A6-A895-4385-8F79-54C8315733E2}\stubpath = "C:\\Windows\\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe"	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{F60F56A6-A895-4385-8F79-54C8315733E2}	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe

Executes dropped EXE 2 IoCs

pid	Process
3152	{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
5896	{F60F56A6-A895-4385-8F79-54C8315733E2}.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{F60F56A6-A895-4385-8F79-54C8315733E2}.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-1-5-21-3437697693-2283162250-3003737219-1000\{3181036B-08EC-4970-B39A-C05954300DB7}	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 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3104	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe
Token: SeShutdownPrivilege	4836	explorer.exe
Token: SeCreatePagefilePrivilege	4836	explorer.exe
Token: SeShutdownPrivilege	4836	explorer.exe
Token: SeCreatePagefilePrivilege	4836	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5920	sihost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3104 wrote to memory of 3152	3104	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe	88
PID 3104 wrote to memory of 5936	3104	2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe	89
PID 5920 wrote to memory of 4836	5920	sihost.exe	94
PID 4836 wrote to memory of 5896	4836	explorer.exe	95

C:\Users\Admin\AppData\Local\Temp\2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-08_46ecc141bcc3619e42a0452ad6f589ea_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:3104
- C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
  C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3152
- 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:5936

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5920
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
    "C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5896

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

{F60F56A6-A895-4385-8F79-54C8315733E2}.exe

Path C:\Windows\{F60F56A6-A895-4385-8F79-54C8315733E2}.exe
Size 98KB
SHA256 301a020267c7e0a9db9f11807131d6ba98ea7b7a260649238402b81493962aa9
MD5 ca442e158d7c2f6a977f728562d71d89
SHA1 7991a1bf2507649da326162a9f0e01b658c66536
SHA512 fafc18414a4d46cf149682020536ef7ae48d7b9515a244c7d5f8f05a551466ecf8ba5d2e43e9211a510445206590248dfa4a075634b92a8f7394fddafaf2cce4
SSDEEP 768:5vw9816thKQLroy4/wQkNrfrunMxVFA3b7glws:lEG/0oylbunMxVS3Hgz
TLSH
T1D7A35039DDFB30B6E977D57489F125B2FE66ED4235090D0E0582C3426E22B52AF86C1E
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3104-0-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/3104-1-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/3104-7-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/3152-6-0x0000000000400000-0x0000000000411000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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