stormser | e7e7e47baa672c6283eb835948702c1a546ddc0c4e0a6cb62e784d06b765d759

General

Target
2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
Size 89KB
Sample260702-lyzevsd14m
SHA256 e7e7e47baa672c6283eb835948702c1a546ddc0c4e0a6cb62e784d06b765d759
MD5 5704ff12b74f0e666c2861ac1ff8d44c
SHA1 f4bf219eb2b95f60115cc8582512e75f553cc564
SHA512 e97e42ae5c8f1e2dff4da93fe7c63a18f65b4dbbb78ae825969356d68e787e1e35bc71c660ede66bc4cbe6d9c77f28cf4c18a20cf63df01f47c2ad904cf6bed5
SSDEEP 768:Qvw9816vhKQLrob4/wQRNrfrunMxVFA3b7gls:YEGh0obl2unMxVS3HgO
TLSH
T19B93A33D5DDA103BE277D6B585F126E3FE66B983350A1D0E469343428D23B53AD8AC1C
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 4 IoCs

resource	yara_rule
behavioral2/files/0x000e00000001c52b-3.dat	family_stormser
behavioral2/files/0x000e00000001c52c-6.dat	family_stormser
behavioral2/files/0x000f00000001c52b-13.dat	family_stormser
behavioral2/files/0x000f00000001c52c-18.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 8 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\{B7DA1426-E384-4e02-A441-C7D4678D789A}\stubpath = "C:\\Windows\\{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe"	{E4170765-0B50-4816-B804-56E2A95EC742}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C64E23E0-2561-40b2-816B-02DC710C0A58}	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{C64E23E0-2561-40b2-816B-02DC710C0A58}\stubpath = "C:\\Windows\\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe"	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}\stubpath = "C:\\Windows\\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe"	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E4170765-0B50-4816-B804-56E2A95EC742}	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E4170765-0B50-4816-B804-56E2A95EC742}\stubpath = "C:\\Windows\\{E4170765-0B50-4816-B804-56E2A95EC742}.exe"	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B7DA1426-E384-4e02-A441-C7D4678D789A}	{E4170765-0B50-4816-B804-56E2A95EC742}.exe

Executes dropped EXE 5 IoCs

pid	Process
2964	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
4372	{E4170765-0B50-4816-B804-56E2A95EC742}.exe
5772	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
1724	{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
408	{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
File created	C:\Windows\{E4170765-0B50-4816-B804-56E2A95EC742}.exe	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
File created	C:\Windows\{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe	{E4170765-0B50-4816-B804-56E2A95EC742}.exe
File created	C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{E4170765-0B50-4816-B804-56E2A95EC742}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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-1-5-21-2639994890-966400312-4246138405-1000\{8F9D94EC-1ED4-47B7-937A-4A8F2E6E4ABA}	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 8 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2656	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2964	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
Token: SeIncBasePriorityPrivilege	4372	{E4170765-0B50-4816-B804-56E2A95EC742}.exe
Token: SeIncBasePriorityPrivilege	5772	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
Token: SeShutdownPrivilege	4304	explorer.exe
Token: SeCreatePagefilePrivilege	4304	explorer.exe
Token: SeShutdownPrivilege	4304	explorer.exe
Token: SeCreatePagefilePrivilege	4304	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
6060	sihost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2964	2656	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe	88
PID 2656 wrote to memory of 2804	2656	2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe	89
PID 2964 wrote to memory of 4372	2964	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe	90
PID 2964 wrote to memory of 4388	2964	{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe	91
PID 4372 wrote to memory of 5772	4372	{E4170765-0B50-4816-B804-56E2A95EC742}.exe	92
PID 4372 wrote to memory of 6108	4372	{E4170765-0B50-4816-B804-56E2A95EC742}.exe	93
PID 5772 wrote to memory of 1724	5772	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe	94
PID 5772 wrote to memory of 5196	5772	{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe	95
PID 6060 wrote to memory of 4304	6060	sihost.exe	100
PID 4304 wrote to memory of 408	4304	explorer.exe	101

C:\Users\Admin\AppData\Local\Temp\2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-02_5704ff12b74f0e666c2861ac1ff8d44c_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:2656
- C:\Windows\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
  C:\Windows\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.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:2964
- - C:\Windows\{E4170765-0B50-4816-B804-56E2A95EC742}.exe
    C:\Windows\{E4170765-0B50-4816-B804-56E2A95EC742}.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:4372
  - - C:\Windows\{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
      C:\Windows\{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
      4⤵
      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:5772
    - - C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
        
        C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:1724
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{B7DA1~1.EXE > nul
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:5196
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{E4170~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:6108
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{BA3F4~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4388
- 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:2804

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:6060
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
    "C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:408

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

{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe

Path C:\Windows\{B7DA1426-E384-4e02-A441-C7D4678D789A}.exe
Size 89KB
SHA256 2b0a8ccbe08b195e129d75817e7b25599dde0537f91ccdf6a57b338e27cb8cb0
MD5 d7b434ccfd0430f0b5eb7358db7233c5
SHA1 bb1ac9c1bd63bbcf8a126b7437c635c2ebb0bbb2
SHA512 702789788329609d83198b081e493ed061c432dc1c4fa8c75aa2d9af90a6140477d5a3c4c87b6bc35c4efba87ab567e97ed79bae887b3ac0e9f6e5b459f0178d
SSDEEP 768:Qvw9816vhKQLro84/wQRNrfrunMxVFA3b7gls:YEGh0o8l2unMxVS3HgO
TLSH
T16A93A33D5DDA103BE277D6B585F126E3FE66B983360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe

Path C:\Windows\{BA3F4FC8-6A4A-47c9-8517-7163AE65E1C7}.exe
Size 89KB
SHA256 453842daecce7cff947b1a16a56a2c44dad5fdc380fa6778177dbcdf0d47ce27
MD5 15077e2ee67926a5c8a68f2e921d6f8d
SHA1 b800575b20f17c0c3be1b4ba00701ba5853632e2
SHA512 c923c67e3cb7f29742bb0685495250151cb55353a8a48a3b08d32fa59eae6ef8b2ccf4a56fdcc33845952990b69ada52255b1fc107bb760e516fbf9da1f64497
SSDEEP 768:Qvw9816vhKQLro34/wQRNrfrunMxVFA3b7gls:YEGh0o3l2unMxVS3HgO
TLSH
T1C893A33D5DDA103BE277D6B585F126E3FE66B983360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe

Path C:\Windows\{C64E23E0-2561-40b2-816B-02DC710C0A58}.exe
Size 89KB
SHA256 925d83f0240dfdb620f7e8c2f85446ef0d7e9943bb500bc01c8befcd1072b41c
MD5 681f643ec72335beb69c97a5a6f6e40f
SHA1 056524315b83d3813accf32d65f1dbd8b35e833f
SHA512 d01949fd4b88203fa4b53b277c9e517d9bbc2d5a79f689d679e53f69c8e922408ee520b039d091a9c08b55ec2ef0db9566f42ea4ff940e1d5e067df0c6a1ae3e
SSDEEP 768:Qvw9816vhKQLroh4/wQRNrfrunMxVFA3b7gls:YEGh0ohl2unMxVS3HgO
TLSH
T1C493A33D5DDA1037E277D6B585F126E3FE66B983350A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{E4170765-0B50-4816-B804-56E2A95EC742}.exe

Path C:\Windows\{E4170765-0B50-4816-B804-56E2A95EC742}.exe
Size 89KB
SHA256 62c78ba81cd26e09bd762a7cf30a09d1d3c81a86637c6a6ff065cc9677819581
MD5 10339c62d516f697aaaa8866838e4e41
SHA1 a4648fb5e6ecd689d2ce1754e9d1ba899c4b8b0b
SHA512 e96e25bf529f53fa4069ffde9f0aedd680acb095e5d2ded8f3c7a3f4f86fccc93708ec9d938ee3a869dca8715b634716dcc090fdb39a09311abdf8c98bcc56f7
SSDEEP 768:Qvw9816vhKQLroJ4/wQRNrfrunMxVFA3b7gls:YEGh0oJl2unMxVS3HgO
TLSH
T14393A33D5DDA103BE277D6B585F126E3FE66B983350A1D0E469343428D23B53AD8AC1C
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