Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
15/04/2026, 17:07
General
- Target 2026-04-15_c251a3ba3636e35899a7828019ab4f31_elex_wannacry.exe
- Size 128KB
- Sample260415-vm5beaez8j
- SHA256 b7aa24f8af326131a4f70fd4e69d41abbb027e785a6b8618edd39af9ff4b1758
Malware Config
Signatures
- Family: Farfli
Farfli is a Windows backdoor written in C++.
- Detects Farfli Backdoor 5 IoCs
- Detects executables containing base64 encoded User Agent 5 IoCs
- UPX dump on OEP (original entry point) 9 IoCs
- Badlisted process makes network request 8 IoCs
Network request originating from process or tool commonly abused by malware.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Deletes itself 1 IoCs
- 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 23 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.
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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\2026-04-15_c251a3ba3636e35899a7828019ab4f31_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_c251a3ba3636e35899a7828019ab4f31_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:\obzme.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_c251a3ba3636e35899a7828019ab4f31_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:\obzme.exec:\obzme.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_c251a3ba3636e35899a7828019ab4f31_elex_wannacry.exe"3⤵
- Deletes itself
- 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:\wjezfp\xouel.dll",init c:\obzme.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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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
obzme.exe
xouel.dll
memory/1744-13-0x0000000002B60000-0x0000000002BDC000-memory.dmp
memory/1744-11-0x0000000010000000-0x0000000010024000-memory.dmp
memory/1744-12-0x0000000010000000-0x0000000010024000-memory.dmp
memory/1744-14-0x0000000001110000-0x0000000001116000-memory.dmp
memory/1744-18-0x0000000010000000-0x0000000010024000-memory.dmp
memory/1744-19-0x0000000002B60000-0x0000000002BDC000-memory.dmp
memory/1744-21-0x0000000010000000-0x0000000010024000-memory.dmp
memory/1744-24-0x0000000010000000-0x0000000010024000-memory.dmp
memory/1744-27-0x0000000010000000-0x0000000010024000-memory.dmp
memory/3532-2-0x0000000000400000-0x0000000000417000-memory.dmp
memory/3532-0-0x0000000000400000-0x0000000000417000-memory.dmp
memory/4880-6-0x0000000000400000-0x0000000000417000-memory.dmp
memory/4880-8-0x0000000000400000-0x0000000000417000-memory.dmp