stormser | dacf90c0fcaa3f31425317ef73819e2751158f866161007828e01c35cce0806f

General

Target
2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
Size 60KB
Sample260701-han3faat5s
SHA256 dacf90c0fcaa3f31425317ef73819e2751158f866161007828e01c35cce0806f
MD5 098622c4ce250bea217e3e6b164f6dea
SHA1 978b3810750ec877a91c3fc461760ccbee4ac9c7
SHA512 ed1fa3c1c8718c103ed678f46aeecbe54b2cf2feeb2dce9e730e118bbbce8dacea43773158ecba4a31a4c4506ff123afe7d740413ec5a3f5672441d44ab1e267
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqw8Y04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroK4/CFsrd
TLSH
T14353F7834BEE5CF2F791117108798AB9927B99C4910EBEDFBB90CD154037292E53A10B
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 2 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c518-3.dat	family_stormser
behavioral2/files/0x000e00000001c519-6.dat	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\{0C75461F-247E-4910-B44A-BC6DB11CD491}	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0C75461F-247E-4910-B44A-BC6DB11CD491}\stubpath = "C:\\Windows\\{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe"	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{84913153-4598-42e0-810F-1A277810B1B8}	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{84913153-4598-42e0-810F-1A277810B1B8}\stubpath = "C:\\Windows\\{84913153-4598-42e0-810F-1A277810B1B8}.exe"	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe

Executes dropped EXE 3 IoCs

pid	Process
1040	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
1780	{84913153-4598-42e0-810F-1A277810B1B8}.exe
5800	{84913153-4598-42e0-810F-1A277810B1B8}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
File created	C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe	{0C75461F-247E-4910-B44A-BC6DB11CD491}.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	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{84913153-4598-42e0-810F-1A277810B1B8}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{84913153-4598-42e0-810F-1A277810B1B8}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.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-1-5-21-1991999443-3181470666-3272020885-1000\{433A9ED0-5321-496D-896F-A9CB516A5BA6}	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	3184	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	1040	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
Token: SeShutdownPrivilege	3360	explorer.exe
Token: SeCreatePagefilePrivilege	3360	explorer.exe
Token: SeShutdownPrivilege	3360	explorer.exe
Token: SeCreatePagefilePrivilege	3360	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5792	sihost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 1040	3184	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe	88
PID 3184 wrote to memory of 3968	3184	2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe	89
PID 1040 wrote to memory of 1780	1040	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe	90
PID 1040 wrote to memory of 1388	1040	{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe	91
PID 5792 wrote to memory of 3360	5792	sihost.exe	97
PID 3360 wrote to memory of 5800	3360	explorer.exe	98

C:\Users\Admin\AppData\Local\Temp\2026-06-30_098622c4ce250bea217e3e6b164f6dea_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-30_098622c4ce250bea217e3e6b164f6dea_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:3184
- C:\Windows\{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
  C:\Windows\{0C75461F-247E-4910-B44A-BC6DB11CD491}.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:1040
- - C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe
    C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1780
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{0C754~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1388
- 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:3968

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5792
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe
    "C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5800

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

{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe

Path C:\Windows\{0C75461F-247E-4910-B44A-BC6DB11CD491}.exe
Size 60KB
SHA256 0bb91e708da50cc251ece48e2bff80951d9bc8e24df7e31f32e9e8bce491e7ed
MD5 79e79afd7bd43e436a74abb3331f839a
SHA1 9514893136557d1340136c5ba7a6e928ca24ff41
SHA512 c48850bcdefb0ea204df73dc0f936fb0a222bd6cde53c3ae773ee5af00784f948aad77c81dce01494a8ec3782c79dd025cfe0b3d092877905a751aa0d5c3b8ac
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwHY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLro54/CFsrd
TLSH
T11F5309834BDE5CF2F791127108798AB9927B99C4910EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

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{84913153-4598-42e0-810F-1A277810B1B8}.exe

Path C:\Windows\{84913153-4598-42e0-810F-1A277810B1B8}.exe
Size 60KB
SHA256 902065c44fc908634f387c18024fb6a2a126996a929eaa31661e4200d51a0237
MD5 6e7b4cbc7d404ddd0da8f4d84753c49c
SHA1 f49a49b9aeed00dc96d1f2cff21d6012ab9a2d37
SHA512 4af4ffbfc80addd56eea50fe62d615e46babda9ec4e1bce87854c0643205db44e92e28d33874b221c9652b6f0ec55070d434a34c3c2fa3cc387a0d366e8a78be
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwIY04/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroW4/CFsrd
TLSH
T1815309834BEE5CF2F791113108798AB9927BA9C4950EBEDFBF90CD154037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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