stormser | 081b6e43c238ac7cf8a87f5e9a8fb204094467774f9ba566e149dc4b71f5ac14

General

Target
2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
Size 88KB
Sample260727-2vmvnatwe1
SHA256 081b6e43c238ac7cf8a87f5e9a8fb204094467774f9ba566e149dc4b71f5ac14
MD5 483b38f367001c389fc645079bf2484b
SHA1 15dda155a42500ad20368ff772df7c57b457aa0b
SHA512 6b269df647d99b4a7f003c65f3c4b75f163b4ca45d5454561af72b8cb0051c10d8d89fbd7b37574ad7fae17982961b92ebfcbc32f679e6e3d3b176597ac05413
SSDEEP 768:Qvw9816vhKQLroL4/wQRNrfrunMxVFA3b7gln:YEGh0oLl2unMxVS3Hg1
TLSH
T14793A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
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 5 IoCs

resource	yara_rule
behavioral1/files/0x000f0000000244ae-2.dat	family_stormser
behavioral1/files/0x00080000000244a0-6.dat	family_stormser
behavioral1/files/0x00070000000244b2-10.dat	family_stormser
behavioral1/files/0x00080000000244b3-14.dat	family_stormser
behavioral1/files/0x00020000000220ec-18.dat	family_stormser

Boot or Logon Autostart Execution: Active Setup 2 TTPs 10 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\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}\stubpath = "C:\\Windows\\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe"	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}\stubpath = "C:\\Windows\\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe"	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}\stubpath = "C:\\Windows\\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe"	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{03C2B890-181D-4b39-B357-D1A37CBA2A37}	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{03C2B890-181D-4b39-B357-D1A37CBA2A37}\stubpath = "C:\\Windows\\{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe"	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}\stubpath = "C:\\Windows\\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe"	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe

Executes dropped EXE 5 IoCs

pid	Process
2452	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
4604	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
724	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
4328	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
3380	{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
File created	C:\Windows\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
File created	C:\Windows\{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
File created	C:\Windows\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
File created	C:\Windows\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe

Executes a command shell one-liner 1 TTPs 5 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
964	cmd.exe
4804	cmd.exe
5000	cmd.exe
3436	cmd.exe
3552	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.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	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3504	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2452	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
Token: SeIncBasePriorityPrivilege	4604	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
Token: SeIncBasePriorityPrivilege	724	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
Token: SeIncBasePriorityPrivilege	4328	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 2452	3504	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe	92
PID 3504 wrote to memory of 5000	3504	2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe	93
PID 2452 wrote to memory of 4604	2452	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe	94
PID 2452 wrote to memory of 3436	2452	{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe	95
PID 4604 wrote to memory of 724	4604	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe	98
PID 4604 wrote to memory of 3552	4604	{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe	99
PID 724 wrote to memory of 4328	724	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe	100
PID 724 wrote to memory of 964	724	{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe	101
PID 4328 wrote to memory of 3380	4328	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe	102
PID 4328 wrote to memory of 4804	4328	{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe	103

C:\Users\Admin\AppData\Local\Temp\2026-07-27_483b38f367001c389fc645079bf2484b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_483b38f367001c389fc645079bf2484b_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:3504
- C:\Windows\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
  C:\Windows\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.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:2452
- - C:\Windows\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
    C:\Windows\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.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:4604
  - - C:\Windows\{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
      C:\Windows\{03C2B890-181D-4b39-B357-D1A37CBA2A37}.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:724
    - - C:\Windows\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
        
        C:\Windows\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
        5⤵
        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:4328
      - C:\Windows\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe
        
        C:\Windows\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:3380
      - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{3626E~1.EXE > nul
        6⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:4804
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{03C2B~1.EXE > nul
        5⤵
        Executes a command shell one-liner
        System Location Discovery: System Language Discovery
        
        PID:964
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{8D2C3~1.EXE > nul
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      PID:3552
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{0768B~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:3436
- 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:5000

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

{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe

Path C:\Windows\{03C2B890-181D-4b39-B357-D1A37CBA2A37}.exe
Size 88KB
SHA256 aabf612b8cefac32a14d86eff6e9d43f0c704a649a9c9574b9ce3bc66d2ae3ee
MD5 bdd606cfed60dcf263e0cb0b3f13c653
SHA1 da5f8f392ef2da3e34f322bce0c9b686fa21bbd6
SHA512 420511252d598daefb18af40beb085b6f8f59bdb416dfa8b6d98bc05cf34f0859103a2cc2b88a14a58bc110a39ebc89b8af75cf0fced6990311688f2c9a2b3ed
SSDEEP 768:Qvw9816vhKQLroH4/wQRNrfrunMxVFA3b7gln:YEGh0oHl2unMxVS3Hg1
TLSH
T16793A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

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{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe

Path C:\Windows\{0768B5C5-1492-4596-A4E0-DA3642FBADD0}.exe
Size 88KB
SHA256 c13bad967e85da65577c8cbae0f94b4955c55b66efd720329bf23f14251ab36f
MD5 ce06217d1a170df840228cd59f2f9ac4
SHA1 2d9a2d732190d0047468ef3629002fcaed385ab6
SHA512 bd305ffcca5d44e47b0057d029c01bee09b3ebb644047f3439343916606d5a583ca3da39a52159fd62e8bf028d30881baef3fc7cfeadfc15c2c8fe436f7d0769
SSDEEP 768:Qvw9816vhKQLrot4/wQRNrfrunMxVFA3b7gln:YEGh0otl2unMxVS3Hg1
TLSH
T14E93A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe

Path C:\Windows\{3626E2CA-691E-4124-8A59-92AD97BE4CC7}.exe
Size 88KB
SHA256 c88c735b801bfd26a46505819c9bf6dd75ce2dc1dba90ddbd291a37dec888127
MD5 8991e77848ca9c75acd6a9ade1889217
SHA1 1e2e34afe356a1955e5e506dfcbefb03f056bd4e
SHA512 0bc6fec8bec994478d3d58cfd0e67a267b464b4d1ca4ca3886874ff82f4716972182c5f0aab532d75047713117dba1797cc3247e6d8c53e4474df1c615dd0237
SSDEEP 768:Qvw9816vhKQLrop4/wQRNrfrunMxVFA3b7gln:YEGh0opl2unMxVS3Hg1
TLSH
T14F93A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe

Path C:\Windows\{70A0DCC5-64FC-4af2-AA0C-6A801F22E5BD}.exe
Size 88KB
SHA256 3576c71176db7e983773fb2e3fca9fbd6e9de67a880e284efeaebb2db5499be1
MD5 608213e27f0370accb4f1d88f76504c3
SHA1 222d22b07886e3174bf4b4ed78bce46f33e9e4b1
SHA512 cfca3b1d63276edfe23ce64e26032c2fd6ef26da1cc82db37d77cb705fe8573cffbf7d262d77448202727e58f337927cc0c818fd8ef88cbe26b3cb50a23dafdf
SSDEEP 768:Qvw9816vhKQLroW4/wQRNrfrunMxVFA3b7gln:YEGh0oWl2unMxVS3Hg1
TLSH
T11F93A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

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{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe

Path C:\Windows\{8D2C32BF-FC00-4b7a-8F5C-75CA4B5C8F44}.exe
Size 88KB
SHA256 b7389c104176a8f45741995f10c642edbd8f153ed8ab3598515b83603d9fdb56
MD5 0bc721b95b16e29383069e4da5cc9abe
SHA1 e8922a81d617efec3e8328cb53282753504af41d
SHA512 d888b9d244c30e9795a08471a9a9ddd08c48e51d6fe096cd3ed439c741ed3d4ab9ec2444e99d45e4ebb0d0aa61a0151aba76d41e0af5e9c50184a537da2d2ccc
SSDEEP 768:Qvw9816vhKQLrov4/wQRNrfrunMxVFA3b7gln:YEGh0ovl2unMxVS3Hg1
TLSH
T1AC93A23D5DDA1037E277D6B585F126E3FE66BA83360A1D0E469343428D23B53AD8AC1C
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads