stormser | e2482e89511a835fdec5d8e17d186b5a89eb6ba5f896bace0fcc2eb88ab325ad

General

Target
2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
Size 98KB
Sample260707-srvxesgy7k
SHA256 e2482e89511a835fdec5d8e17d186b5a89eb6ba5f896bace0fcc2eb88ab325ad
MD5 f6ae41c78b314d6d5433d33abe6fd83b
SHA1 045aef3bf1fa1511d3478de9c62815880baef535
SHA512 88e7f74a73caa4d975f7c1b51f3202ea3a305be18f27152ac702c53fa6c7144d2acdc5a0ae1d0238ce973e1b4aff250ebc2b7547bdd59c1de055edf0e8f86d09
SSDEEP 768:5vw981UMhKQLroq4/wQ4pNrfrunMxVFA3b7glw6:lEG00oql3zunMxVS3Hgl
TLSH
T167A3A33D5EEA1037E277E6B585F929F3FE26B98335091D0E0586C3464C2BB42AD86D1C
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 8 IoCs

resource	yara_rule
behavioral2/memory/1748-0-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/1748-1-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/952-6-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/files/0x000e00000001c5be-5.dat	family_stormser
behavioral2/memory/1748-7-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/files/0x000e00000001c5bf-10.dat	family_stormser
behavioral2/memory/2768-14-0x0000000000400000-0x0000000000411000-memory.dmp	family_stormser
behavioral2/memory/952-13-0x0000000000400000-0x0000000000411000-memory.dmp	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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}\stubpath = "C:\\Windows\\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe"	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}\stubpath = "C:\\Windows\\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe"	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe

Executes dropped EXE 3 IoCs

pid	Process
952	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
2768	{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
5072	{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
File created	C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.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	{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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-1-5-21-200172840-2662118501-695741713-1000\{317DAFB4-7147-4A5D-BA67-EACD8BFF121B}	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	1748	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	952	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
Token: SeShutdownPrivilege	3212	explorer.exe
Token: SeCreatePagefilePrivilege	3212	explorer.exe
Token: SeShutdownPrivilege	3212	explorer.exe
Token: SeCreatePagefilePrivilege	3212	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1008	sihost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 952	1748	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe	88
PID 1748 wrote to memory of 1380	1748	2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe	89
PID 952 wrote to memory of 2768	952	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe	90
PID 952 wrote to memory of 1364	952	{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe	91
PID 1008 wrote to memory of 3212	1008	sihost.exe	96
PID 3212 wrote to memory of 5072	3212	explorer.exe	97

C:\Users\Admin\AppData\Local\Temp\2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-07_f6ae41c78b314d6d5433d33abe6fd83b_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:1748
- C:\Windows\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
  C:\Windows\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.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:952
- - C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
    C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2768
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{6CE0A~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1364
- 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:1380

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3212
- - C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
    "C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5072

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

{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe

Path C:\Windows\{6CE0AD3C-BEA2-4c41-85B0-997007E3B1AC}.exe
Size 98KB
SHA256 6f0894f42a7507a69a2883c436ed2f74375e4e20c5f081d7ca6814cb60c5743d
MD5 fbcb6af92c11ec780b4ad993c2b41497
SHA1 15d675a290745f79f182cb4f8bfb802fed07a982
SHA512 3f913bf8529e4c631d35a65ee714a797851cdc210525496c495654c898afc931bf147810adcda4fca2654df6ebb5b5027add84b51b38b66d8e69c66da1f7af7c
SSDEEP 768:5vw981UMhKQLroL4/wQ4pNrfrunMxVFA3b7glw6:lEG00oLl3zunMxVS3Hgl
TLSH
T1E4A3933D5EEA1037E277E6B585F929F3FE26B98335091D0E0586C3464C2BB42AD86D1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe

Path C:\Windows\{BC1ED4E9-C4D3-49d7-8A35-9601F329D9D8}.exe
Size 98KB
SHA256 7e9428f79122338a57095bf69376da2b89209d3ad4048a12736f63e3829e1745
MD5 ba4365af60622893556a15820d7a7cc6
SHA1 4a40c5406d2d95be2cc105b63f80bd04827613c9
SHA512 8d7999e7f171db338c9322b1e1cae09c01db649c67ee00257b92b45ef6b9c900cd04a8b66dd2bfc01481b51ac41b5a6a2b7a1e75fdbdc3da42afdf9e73cddbed
SSDEEP 768:5vw981UMhKQLron4/wQ4pNrfrunMxVFA3b7glw6:lEG00onl3zunMxVS3Hgl
TLSH
T1CAA3933D5EEA1037E277E6B585F929F3FE26B98335091D0E0586C3464C2BB42AD86D1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/952-6-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/952-13-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/1748-0-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/1748-1-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/1748-7-0x0000000000400000-0x0000000000411000-memory.dmp

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memory/2768-14-0x0000000000400000-0x0000000000411000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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