Analysis
- max time kernel
149s - max time network
130s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
05/05/2026, 12:12
General
- Target 2026-05-05_6e4e248d135e39508d8789a5e70e72ef_elex_wannacry.exe
- Size 123KB
- Sample260505-pc65csa15m
- SHA256 e94ee4a0c54cd23931444619b3cc3ca3d24ccaa6b77c5b96e412fdf501fc56f1
Malware Config
Extracted
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gh0strat
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host123.zz.am:6658
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http://23.104.160.115:8890/version.php
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http://23.104.160.116:9963/
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user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)
Signatures
- Family: Farfli
Farfli is a Windows backdoor written in C++.
- Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
- Detects Farfli Backdoor 4 IoCs
- Detects executables containing base64 encoded User Agent 4 IoCs
- Badlisted process makes network request 3 IoCs
Network request originating from process or tool commonly abused by malware.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Program crash 1 IoCs
- 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.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2026-05-05_6e4e248d135e39508d8789a5e70e72ef_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-05_6e4e248d135e39508d8789a5e70e72ef_elex_wannacry.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&c:\ygzcv.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_6e4e248d135e39508d8789a5e70e72ef_elex_wannacry.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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\??\c:\ygzcv.exec:\ygzcv.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_6e4e248d135e39508d8789a5e70e72ef_elex_wannacry.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\tkjnr\hzttu.dll",AbortProc c:\ygzcv.exe4⤵
- Badlisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5000 -s 16045⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5000 -ip 50001⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
ygzcv.exe
hzttu.dll
memory/3384-1-0x00000000009A0000-0x0000000000B4C000-memory.dmp
memory/5000-10-0x0000000010000000-0x0000000010045000-memory.dmp
memory/5000-9-0x0000000000E30000-0x0000000000E31000-memory.dmp
memory/5000-11-0x0000000010000000-0x0000000010045000-memory.dmp
memory/5000-8-0x0000000010000000-0x0000000010045000-memory.dmp
memory/5000-12-0x0000000010000000-0x0000000010045000-memory.dmp
memory/5000-14-0x0000000000D10000-0x0000000000D2A000-memory.dmp
memory/5000-15-0x0000000000E30000-0x0000000000E31000-memory.dmp
memory/5000-13-0x0000000000F50000-0x00000000010FC000-memory.dmp
memory/5000-22-0x0000000010000000-0x0000000010045000-memory.dmp
memory/5000-20-0x0000000000F50000-0x00000000010FC000-memory.dmp