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Ransomware · Ransomworm · Worm

WannaCry - invoice_greenanimals.pdf.exe

Author
Moise Medici
Updated
15 Feb 2026 · Completed
Difficulty
Medium
Platform
Windows
Family
WannaCryptor
Languages
C++
MITRE
T1047 (Windows Management Instrumentation) T1059.003 (Command and Scripting Interpreter: Windows Command Shell) T1059.005 (Command and Scripting Interpreter: Visual Basic) T1569.002 (System Services: Service Execution) T1543.003 (Create or Modify System Process: Windows Service) T1547.001 (Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder) T1027.007 (Obfuscated Files or Information: Dynamic API Resolution) T1027.009 (Obfuscated Files or Information: Embedded Payloads) T1027.013 (Obfuscated Files or Information: Encrypted/Encoded File) T1036.004 (Masquerading: Masquerade Task or Service) T1036.005 (Masquerading: Match Legitimate Resource Name or Location) T1036.007 (Masquerading: Double File Extension) T1070.004 (Indicator Removal: File Deletion) T1140 (Deobfuscate/Decode Files or Information) T1480 (Execution Guardrails) T1564.001 (Hide Artifacts: Hidden Files and Directories) T1620 (Reflective Code Loading) T1222.001 (File and Directory Permissions Modification: Windows Permissions) T1016 (System Network Configuration Discovery) T1033 (System Owner/User Discovery) T1046 (Network Service Discovery) T1083 (File and Directory Discovery) T1680 (Local Storage Discovery) T1210 (Exploitation of Remote Services) T1570 (Lateral Tool Transfer) T1486 (Data Encrypted for Impact) T1490 (Inhibit System Recovery) T1491.001 (Defacement: Internal Defacement)

Indicators of Compromise

Network
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com
Kill-switch domain, requested over DNS and HTTP.
~3,000 IP addresses
SMB propagation targets, too many to list usefully here.
Files
@Please_Read_Me@.txt
user desktop
@WanaDecryptor@.exe
user desktop
C:\Windows\tasksche.exe
C:\ProgramData\jzaobqby070
directory name may differ per execution or system
Services
mssecsvc2.0
display name: Microsoft Security Center (2.0) Service
pafhcsxxsfdrw600
Bitcoin address
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Hashes · SHA-256
b9c5d4339809e0ad9a00d4d3dd26fdf44a32819a54abf846bb9b560d81391c25
@WanaDecryptor@.exe
ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
C:\Windows\tasksche.exe and C:\ProgramData\pafhcsxxsfdrw600\tasksche.exe
4a468603fdcb7a2eb5770705898cf9ef37aade532a7964642ecd705a74794b79
C:\ProgramData\pafhcsxxsfdrw600\taskdl.exe
2ca2d550e603d74dedda03156023135b38da3630cb014e3d00b1263358c5f00d
C:\ProgramData\pafhcsxxsfdrw600\taskse.exe
1be0b96d502c268cb40da97a16952d89674a9329cb60bac81a96e01cf7356830
kbdlv.dll
9411c59a83c8c32a925d53a902bef168ebe5b403a88ab4d8dfe807fd7435dd9e
launcher.dll
24d004a104d4d54034dbcffc2a4b19a11f39008a575aa614ea04703480b1022c
C:\Windows\mssecsvc.exe