Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/06/2026, 02:42

General

  • Target
    2026-06-03_49b3e9676c63b9494d2a08096f0b9458_coinminer_elex_wannacry.exe
  • Size 170KB
  • Sample260603-c7eblsav6n
  • SHA256 53fa3ed7fd2555ac2ef3b29181b5a1e2698bd1addd2be725f9ff05a18cfd5718
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Farfli

    Farfli is a Windows backdoor written in C++.

  • Detects Farfli Backdoor 4 IoCs
  • Detects executables containing base64 encoded User Agent 4 IoCs
  • Detects executables packed with VMProtect. 4 IoCs
  • UPX dump on OEP (original entry point) 7 IoCs
  • Badlisted process makes network request 4 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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 1 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 64 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\2026-06-03_49b3e9676c63b9494d2a08096f0b9458_coinminer_elex_wannacry.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-03_49b3e9676c63b9494d2a08096f0b9458_coinminer_elex_wannacry.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\mgplndc.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-03_49b3e9676c63b9494d2a08096f0b9458_coinminer_elex_wannacry.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4248
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3036
      • C:\Users\Admin\AppData\Local\Temp\mgplndc.exe
        C:\Users\Admin\AppData\Local\Temp\\mgplndc.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-03_49b3e9676c63b9494d2a08096f0b9458_coinminer_elex_wannacry.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4928
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\vzefmuqda\muush.usm",Exit C:\Users\Admin\AppData\Local\Temp\mgplndc.exe
          4⤵
          • 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
          PID:5036

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        mgplndc.exe

        • Path C:\Users\Admin\AppData\Local\Temp\mgplndc.exe
        • Size 170KB
        • SHA256 910e2da56ae1c993bd92cd0762fd6c7f9c7f2b39a9fc6c09dd224da8750fc4d2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        muush.usm

        • Path \??\c:\vzefmuqda\muush.usm
        • Size 116KB
        • SHA256 53a1a5f96fce740b377bb053a358c0a50c63dfafddb8925d9aca66c852420872
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5036-7-0x0000000010000000-0x000000001003A000-memory.dmp

        memory/5036-8-0x0000000010000000-0x000000001003A000-memory.dmp

        memory/5036-9-0x0000000010000000-0x000000001003A000-memory.dmp

        memory/5036-11-0x0000000010000000-0x000000001003A000-memory.dmp

        memory/5036-12-0x0000000010000000-0x000000001003A000-memory.dmp