stormser | 1291eb7bd1c909c1cc70be5e1ae1f5c13d85844dc4fc10f5facc1089d3b64af8

General

Target
2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
Size 168KB
Sample260707-ceernscx6p
SHA256 1291eb7bd1c909c1cc70be5e1ae1f5c13d85844dc4fc10f5facc1089d3b64af8
MD5 9dc4a3dc336b2f7c037ecce9531d2b34
SHA1 da4d331250164c3a0efdf6cc3008263303da6911
SHA512 90480bb36e701025220fe2519723ce9198185e73ee27f0f97f2c1eda601ab9980b0c57edb8813a3a2bd7e24abbf363331c84fb4afc9feda8ae52b73f7644fe5b
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwn4/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLron4/CFsrd
TLSH
T17EF319834BDE58F3F781113008798AB9927B9AD4921DBEEF7F90CD250077251D53A50B
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/0x000e00000001c4f0-3.dat	family_stormser
behavioral2/files/0x000e00000001c4f2-6.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}\stubpath = "C:\\Windows\\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe"	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{9B948B9A-D0B6-4084-930C-98856C6C2C62}	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{9B948B9A-D0B6-4084-930C-98856C6C2C62}\stubpath = "C:\\Windows\\{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe"	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe

Executes dropped EXE 3 IoCs

pid	Process
2012	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
3288	{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
4852	{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
File created	C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.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	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.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-1-5-21-2049790993-2338060321-149346055-1000\{EAAD8B94-A93E-4E6A-B35A-71B448CE24F5}	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	5000	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2012	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
Token: SeShutdownPrivilege	5504	explorer.exe
Token: SeCreatePagefilePrivilege	5504	explorer.exe
Token: SeShutdownPrivilege	5504	explorer.exe
Token: SeCreatePagefilePrivilege	5504	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2408	sihost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5000 wrote to memory of 2012	5000	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe	87
PID 5000 wrote to memory of 5896	5000	2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe	88
PID 2012 wrote to memory of 3288	2012	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe	89
PID 2012 wrote to memory of 5696	2012	{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe	90
PID 2408 wrote to memory of 5504	2408	sihost.exe	95
PID 5504 wrote to memory of 4852	5504	explorer.exe	96

C:\Users\Admin\AppData\Local\Temp\2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-06_9dc4a3dc336b2f7c037ecce9531d2b34_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:5000
- C:\Windows\{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
  C:\Windows\{9B948B9A-D0B6-4084-930C-98856C6C2C62}.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:2012
- - C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
    C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3288
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{9B948~1.EXE > nul
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5696
- 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:5896

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\explorer.exe
  explorer.exe /LOADSAVEDWINDOWS
  2⤵
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5504
- - C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
    "C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4852

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

{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe

Path C:\Windows\{11052E79-6AFD-4c6a-A551-7AFA19B87F36}.exe
Size 168KB
SHA256 3c68bf13b435f6febec1abfb74390fbfef1061d08b7054ef26502bc03a97ec5f
MD5 9a4e0099d251ada5e9d3afc7e51a28bd
SHA1 ffb3585e7980dd6840875d20dc86b0f80eb04721
SHA512 22f7c77259e002c18fdfdc4162b4495c8202ffad6c8ae6c92c1595eef48b4bfe43408bcc6820ebec3f23ac9288d9973ed88280554fbc35fc28bd4135e19c23a7
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwP4/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLroP4/CFsrd
TLSH
T1C5F319834BDE58F3F781113008798AB9927B9AD0921EBEEF7F90CD250077252D53A50B
MD5 SHA1 SHA512 SSDEEP TLSH

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{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe

Path C:\Windows\{9B948B9A-D0B6-4084-930C-98856C6C2C62}.exe
Size 168KB
SHA256 de2b1caab3b7969afa7a79f337b29158c8be70ed8ebe1440a75d97c6e89ab4b4
MD5 580b6a562365c8127a376039618509b8
SHA1 467b4412fd60d16dd935f139ef499771e4d1ef54
SHA512 755fb08422b73a7fc38142f4408e7825a738b214b92fc3d10e04745e4ddc3d527e637ce89377a36f973d0f46304f6f5b902e0dec4c7fa4435186e70eba81e482
SSDEEP 192:pbOzawOs81elJHsc45CcRZOgtShcWaOT2QLrCqwnv4/CFxyNhoy5t:pbLwOs8AHsc4sMfwhKQLronv4/CFsrd
TLSH
T1C0F309834BDA58F3FB81113008798AB9927B9AD4961EBEEF7F90CD250077252D53A50B
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