931cb391bfb7d4933569bd978e370afac7e4465bcee0d985a3c5f66967842597

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-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
3436	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-1-5-21-2370214745-1838013427-2987045292-1000\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
4236	3436	WerFault.exe	84
4872	4200	WerFault.exe	83

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
4200	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe
3436	winlgon.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 3436	4200	2026-08-03_c5fa959e91741b0fbb8be6480a58ab2c_elex_wannacry.exe	84

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:4200
- \??\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:3436
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3436 -s 696
    3⤵
    - Program crash
    PID:4236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 512
  2⤵
  - Program crash
  PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3436 -ip 3436
1⤵
PID:680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4200 -ip 4200
1⤵
PID:4424

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 d2faccdaaccf74fbb9aac2e432c4bfc9d7ef8acf3fd549fef7b30e88b80a9a25
MD5 df8c22bfa7adb0c4d0d0ad99e2ae16bb
SHA1 ab461d94df286939811c90a73b36f5624088d25a
SHA512 451d71fc8b3d0e07af07f7b51c49b29c1fa3f587d31fbade6df0d01dbf61dd327768d8e728a6ca6e8f59a558365654cce88e08f76cf8993acdb5e84f09eb0480
SSDEEP 1536:0bSshapMJgKJUuxm2mfJPtOgqm1s/XZmc:Y25KJFwfJPtOgqm2/XZl
TLSH
T1E0734B97DA6A0865EB50427014AE4A72B933FC68CF2B7E8353CCDE2D1D371969C2416F
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