stormser | 8af29a5041e7352eefc66bf8725d776ccfbbd0bfc045ec90e807f46148991b4e

General

Target
2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
Size 64KB
Sample260924-e8f8psyfqc
SHA256 8af29a5041e7352eefc66bf8725d776ccfbbd0bfc045ec90e807f46148991b4e
MD5 010346df26a30641d49ccdd0d23fb571
SHA1 58843aad12750f32df3e944dab23229746c3ef02
SHA512 15e21badda9c0a7c7f38ab9e3adec3105211a0c7211158d14857d78653ce8c6a30022536406c5968cf05b5453fd962dc4b82c942fda588beafe900112f5f8cca
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLrod4/CFsrdn0A9lsy4:vvw9816vhKQLrod4/wQH9lsl
TLSH
T109535C834BEE98F2F7920131056D8AB98277ADC4961EBE9F7F90CE54007B191D83A14B
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 2 IoCs

resource	yara_rule
behavioral1/files/0x0009000000024628-3.dat	family_stormser
behavioral1/files/0x0008000000024619-6.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\{99412655-F79D-44a8-A22F-431A120E96B4}	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{99412655-F79D-44a8-A22F-431A120E96B4}\stubpath = "C:\\Windows\\{99412655-F79D-44a8-A22F-431A120E96B4}.exe"	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{090394BF-5A64-4119-B746-36730F0DF417}	{99412655-F79D-44a8-A22F-431A120E96B4}.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{090394BF-5A64-4119-B746-36730F0DF417}\stubpath = "C:\\Windows\\{090394BF-5A64-4119-B746-36730F0DF417}.exe"	{99412655-F79D-44a8-A22F-431A120E96B4}.exe

Executes dropped EXE 2 IoCs

pid	Process
2820	{99412655-F79D-44a8-A22F-431A120E96B4}.exe
5592	{090394BF-5A64-4119-B746-36730F0DF417}.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\{090394BF-5A64-4119-B746-36730F0DF417}.exe	{99412655-F79D-44a8-A22F-431A120E96B4}.exe
File created	C:\Windows\{99412655-F79D-44a8-A22F-431A120E96B4}.exe	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe

Executes a command shell one-liner 1 TTPs 2 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
6068	cmd.exe
1652	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{090394BF-5A64-4119-B746-36730F0DF417}.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	{99412655-F79D-44a8-A22F-431A120E96B4}.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4940	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
Token: SeIncBasePriorityPrivilege	2820	{99412655-F79D-44a8-A22F-431A120E96B4}.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 2820	4940	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe	99
PID 4940 wrote to memory of 6068	4940	2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe	100
PID 2820 wrote to memory of 5592	2820	{99412655-F79D-44a8-A22F-431A120E96B4}.exe	101
PID 2820 wrote to memory of 1652	2820	{99412655-F79D-44a8-A22F-431A120E96B4}.exe	102

C:\Users\Admin\AppData\Local\Temp\2026-09-24_010346df26a30641d49ccdd0d23fb571_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-24_010346df26a30641d49ccdd0d23fb571_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:4940
- C:\Windows\{99412655-F79D-44a8-A22F-431A120E96B4}.exe
  C:\Windows\{99412655-F79D-44a8-A22F-431A120E96B4}.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:2820
- - C:\Windows\{090394BF-5A64-4119-B746-36730F0DF417}.exe
    C:\Windows\{090394BF-5A64-4119-B746-36730F0DF417}.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5592
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Windows\{99412~1.EXE > nul
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:1652
- 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:6068

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

{090394BF-5A64-4119-B746-36730F0DF417}.exe

Path C:\Windows\{090394BF-5A64-4119-B746-36730F0DF417}.exe
Size 64KB
SHA256 224d05a303d73236edf405c0088affb3f2d45b4a78fc9ecb7b39fe2868428b2e
MD5 02fd3e68fc9e50c8fb18591127d3b53c
SHA1 9b0530add738bf0778bb61369e90e69188858a75
SHA512 88b8bd503dfcdc6de3a41161b9e7317395c353eab2b888796f3732bface98cfc640e32bb30e327bc88b4451304b943371eca4fe341c7459bd5c84fbb6e7114ad
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLroY4/CFsrdn0A9lsy4:vvw9816vhKQLroY4/wQH9lsl
TLSH
T124535C834BEE98F2F7D21131046D8AB99277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

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{99412655-F79D-44a8-A22F-431A120E96B4}.exe

Path C:\Windows\{99412655-F79D-44a8-A22F-431A120E96B4}.exe
Size 64KB
SHA256 38fadbcd7ed80ce0f594163c56a74e74d9202012070fb2852914d23dde0d388b
MD5 51355de149cb6a9f9d9aec90954940c8
SHA1 e4523bafd94296e09b679d974b3a4bb445c4d1d5
SHA512 16e7f7192c78c2565e2aa21aff32a2e67bd5b61011ccb1e8f31304cebb11c5c4d3170210936946358948745144b035b421d3e1e1f36d934bf3e02e337efa3894
SSDEEP 384:vbLwOs8AHsc4sMfwhKQLror4/CFsrdn0A9lsy4:vvw9816vhKQLror4/wQH9lsl
TLSH
T124535C834BEE9CF2F7921131046D8AB99277ADC4961EBEAF7F50CE54007B191D83A14B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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