stormser | bed1210af4ccfeaac1adae2da04660d952fb11417aa3cf3a92923441ad4fe682

General

Target
2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
Size 59KB
Sample260706-wbbemaet8n
SHA256 bed1210af4ccfeaac1adae2da04660d952fb11417aa3cf3a92923441ad4fe682
MD5 bd48d22e662615d129da8199b530ee83
SHA1 cd4aabd753c6bdb182ba303ca3b6a1e74d89618c
SHA512 aab6ef6f99ab5abfe255e1a9c28f76f8f0cca3b9bbe078c1eea586ccb990e1b7918f40f55c1faf5de8597cdb657a5fc45fd4f0edaba1b0539aaf015a8e85dbcb
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwYY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroG4/CFsrd
TLSH
T19B4308834BEE9CF2F791113108798AB9927B99D4950EBEDFBF90CD150077292E53A10B
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/0x000f00000001c52c-3.dat	family_stormser
behavioral2/files/0x000f00000001c52f-6.dat	family_stormser
behavioral2/files/0x001000000001c52c-13.dat	family_stormser
behavioral2/files/0x001000000001c52f-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\{E9F56968-5794-4861-B1C4-B4C79B81CBED}\stubpath = "C:\\Windows\\{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe"	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}\stubpath = "C:\\Windows\\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe"	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}\stubpath = "C:\\Windows\\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe"	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}\stubpath = "C:\\Windows\\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe"	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E9F56968-5794-4861-B1C4-B4C79B81CBED}	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe

Executes dropped EXE 5 IoCs

pid	Process
5676	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
3332	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
5636	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
4812	{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
5312	{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
File created	C:\Windows\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
File created	C:\Windows\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
File created	C:\Windows\{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.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	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.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	{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{B4BFCC3A-DB2C-424C-B029-7FE99A87C641}\Instance\	explorer.exe
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1590476978-4004838454-3790292847-1000\{442C0788-D471-42C5-9BD0-CCC0465DAA6B}	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\	explorer.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	5552	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	5676	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
Token: SeIncBasePriorityPrivilege	3332	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
Token: SeIncBasePriorityPrivilege	5636	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
Token: SeShutdownPrivilege	1768	explorer.exe
Token: SeCreatePagefilePrivilege	1768	explorer.exe
Token: SeShutdownPrivilege	1768	explorer.exe
Token: SeCreatePagefilePrivilege	1768	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4664	sihost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5552 wrote to memory of 5676	5552	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe	87
PID 5552 wrote to memory of 1872	5552	2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe	88
PID 5676 wrote to memory of 3332	5676	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe	89
PID 5676 wrote to memory of 3408	5676	{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe	90
PID 3332 wrote to memory of 5636	3332	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe	91
PID 3332 wrote to memory of 5392	3332	{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe	92
PID 5636 wrote to memory of 4812	5636	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe	93
PID 5636 wrote to memory of 3736	5636	{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe	94
PID 4664 wrote to memory of 1768	4664	sihost.exe	99
PID 1768 wrote to memory of 5312	1768	explorer.exe	100

C:\Users\Admin\AppData\Local\Temp\2026-07-06_bd48d22e662615d129da8199b530ee83_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-06_bd48d22e662615d129da8199b530ee83_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:5552
- C:\Windows\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
  C:\Windows\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.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:5676
- - C:\Windows\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
    C:\Windows\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.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:3332
  - - C:\Windows\{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
      C:\Windows\{E9F56968-5794-4861-B1C4-B4C79B81CBED}.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:5636
    - - C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
        
        C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        
        PID:4812
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c del C:\Windows\{E9F56~1.EXE > nul
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3736
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Windows\{EC5AF~1.EXE > nul
      4⤵
      System Location Discovery: System Language Discovery
      PID:5392
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{BECED~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3408
- 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:1872

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4664
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1768
- - C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
    "C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5312

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

{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe

Path C:\Windows\{BECED5DB-5C23-4a4b-B8E8-1A5DD3057C80}.exe
Size 59KB
SHA256 bbbe43fb6ed4cddd0b43ac0043f6b82925e4b4bf6061680d061379ac453bca4e
MD5 b89bd7a627c0a707a4cc7b0af6269468
SHA1 a72a6ab6ecbc75c5d9803ac0a5d6841ee6f6084d
SHA512 aa8c7f1a611996162c8b157a3130da14d796ebf85a92381f35c408af4faed71f18b8e78d772cf8c1bf1d3c06986461f30057f134aac965daf755f070c4defd72
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwuY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroU4/CFsrd
TLSH
T10243F8834BEE9CF2F791117108798AB9927B99D4950EBEDFBB90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe

Path C:\Windows\{CEBC4C3C-69D1-46ee-B9F3-2BB77131352F}.exe
Size 59KB
SHA256 31c39fe9584e6d12c73e82925b570f20ec72803ad4092fb625e296e3782bd6bd
MD5 744b1bad52188e7404c4859f1ca44abc
SHA1 84bdf8e40d8b56e9ec645e9816fb67bf046bd554
SHA512 090d70144e106f94ad0181acd33c0b2c528072c9c15911b87bfda65ab3c0f107ab9c66d3bbe30368535e4d8167059d594aa2a904b1e956c4ffc0b033e2b05383
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqweWY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLro/4/CFsrd
TLSH
T10A4308834BEE9CF2F791117108798AB9927B99D4950EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe

Path C:\Windows\{E9F56968-5794-4861-B1C4-B4C79B81CBED}.exe
Size 59KB
SHA256 b7843e591621813b8ae51eb37cdc5ce9d6447c849b352329d13f45fe11ada2b8
MD5 f2ecd5e4dcd1608b383555818d2d0356
SHA1 97a7398eaef243296a335d40a956ea1a39d6409d
SHA512 42a7ff371fcf5ae846c4b968e220b808836cf10ad4aa4e0f23d2de539e1d9851de46bb2a7c52a073e4ce30080c6f2d6aefb475e42f06a3f5c6ac1571418f1fa1
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwDMY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroD64/CFsrd
TLSH
T1454309834BEE5CF2F791113108798AB9927BA9D4910EBEDFBF90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe

Path C:\Windows\{EC5AF146-B7A1-498f-8F68-B4633EF07C6E}.exe
Size 59KB
SHA256 75f293df140760174c13c62f51169cfd0649cfc17d66f2bc539912ff3f3c71f4
MD5 324c2856f5ef7b87f380a52a5320b743
SHA1 591e3789d051a3f6400fa7a64909acc0c797c0fc
SHA512 0ca5da96a265f9e82e68ce61697d7a0153f8788f65d09e1f09a5d665887c19689c94bc15f0600b347da04719e05e6e4fa44e49a228c4dd93983eb9f19096f184
SSDEEP 192:vbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwxnY04/CFxyNhoy5t:vbLwOs8AHsc4sMfwhKQLroxZ4/CFsrd
TLSH
T15C43F8834BDE9CF2F791117108798AB9927B99D4950EBEDFBB90CD150037292E53A10B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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