931cb391bfb7d4933569bd978e370afac7e4465bcee0d985a3c5f66967842597

Analysis

max time kernel
150s
max time network
144s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 09:49

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General

Target
2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
Size 75KB
Sample260804-ltnskaha77
SHA256 931cb391bfb7d4933569bd978e370afac7e4465bcee0d985a3c5f66967842597
MD5 c5fa959e91741b0fbb8be6480a58ab2c
SHA1 2031b33db528751108f5fb231a6db6216947b841
SHA512 9bf172a27b67f1fd3605a822049110661bd2ceb6f171f922a2f6ded331f6d3552592115234a5125733440d9c2c70cafd0a0e43539d7e515d8d8923e65539a812
SSDEEP 1536:0bSshapMJgKJUuxm2mfJPtOgqm1s/XZmj:Y25KJFwfJPtOgqm2/XZW
TLSH
T134734B97DA6A0865EB50427014AE4A72B933FC68CF2B7E8353CCDE2D1C371969C2416F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4876	winlgon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2044	4876	WerFault.exe	91
1228	2032	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 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	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2032	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
4876	winlgon.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 4876	2032	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2032
- \??\c:\users\admin\appdata\local\temp\winlgon.exe
  c:\users\admin\appdata\local\temp\winlgon.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4876
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 736
    3⤵
    - Program crash
    PID:2044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 644
  2⤵
  - Program crash
  PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4876 -ip 4876
1⤵
PID:3064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2032 -ip 2032
1⤵
PID:432

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

winlgon.exe

Path \??\c:\users\admin\appdata\local\temp\winlgon.exe
Size 75KB
SHA256 2a38010a136c34567e88743d3457c03bbd61908dd715651c8b0c7cacd3485cd7
MD5 d534dd672ba4c22000cc508aa2b49faf
SHA1 029f806ba4f90d182fdffc25b9d5648aca2a73f4
SHA512 d03486a5d0309298706bb21b24553b7d0b85f907f05aad5d96afb952ff3fb2b7743cfdcf0cf2930a25bbcb29db5442d8363b14ee5f916375f287586c0c85004c
SSDEEP 1536:0bSshapMJgKJUuxm2mfJPtOgqm1s/XZmA:Y25KJFwfJPtOgqm2/XZF
TLSH
T122734B97DA6A0865EB50427014AE4A72B933FC68CF2B7E8353CCDE2D1C371929C2416F
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