Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
20/04/2026, 09:50
General
- Target 2026-04-15_e11f702cf76f28b6f6d86b6448239d63_elex_wannacry.exe
- Size 287KB
- Sample260420-lt9p2abs7v
- SHA256 c6298327705eb194cc0c270a5bf6d9ed76aa5c2ccffd31b013bdf6a857158e42
Malware Config
Signatures
- Family: Farfli
Farfli is a Windows backdoor written in C++.
- Detects Farfli Backdoor 8 IoCs
- Custom signatureDetects executables containing base64 encoded User Agent 8 IoCs
- Badlisted process makes network request 16 IoCs
Network request originating from process or tool commonly abused by malware.
- ASPack v2.12-2.42 1 IoCs
Detects executables packed with ASPack v2.12-2.42
- 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.
- Drops file in Program Files directory 2 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
-
C:\Users\Admin\AppData\Local\Temp\2026-04-15_e11f702cf76f28b6f6d86b6448239d63_elex_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-15_e11f702cf76f28b6f6d86b6448239d63_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:\Users\Admin\AppData\Local\Temp\\zejxv.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_e11f702cf76f28b6f6d86b6448239d63_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:\Users\Admin\AppData\Local\Temp\zejxv.exeC:\Users\Admin\AppData\Local\Temp\\zejxv.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-15_e11f702cf76f28b6f6d86b6448239d63_elex_wannacry.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- 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:\Program Files\orgihmwo\sqylu.dll",GetProc C:\Users\Admin\AppData\Local\Temp\zejxv.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
sqylu.dll
zejxv.exe
memory/1644-0-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1644-2-0x0000000000400000-0x000000000044A000-memory.dmp
memory/3712-7-0x0000000000400000-0x000000000044A000-memory.dmp
memory/3876-14-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-15-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-17-0x0000000010046000-0x0000000010051000-memory.dmp
memory/3876-10-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-13-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-12-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-11-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-18-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-19-0x00000000035A0000-0x0000000003604000-memory.dmp
memory/3876-21-0x0000000010000000-0x0000000010057000-memory.dmp
memory/3876-23-0x0000000010000000-0x0000000010057000-memory.dmp