Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    12-09-2021 19:04

General

  • Target

    AF01EC61317D91BC4CE4B70B972B6A5DD29DDCC18999A.exe

  • Size

    4.9MB

  • MD5

    4d9350a29c7677374fbb8bc2e96a77f3

  • SHA1

    1fd63c7af6b2397d2f6616935aafef394f2394ed

  • SHA256

    af01ec61317d91bc4ce4b70b972b6a5dd29ddcc18999a937d298d7de8a0cf7af

  • SHA512

    7b69647225ef9d6d38389cc42a680946b85fc097d8681f715a6d0064dd205e3b743c42af163566071bab3f70b71e89a6e9629f540fd3ee1f5be8b5253876c7f0

Score
10/10

Malware Config

Signatures

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AF01EC61317D91BC4CE4B70B972B6A5DD29DDCC18999A.exe
    "C:\Users\Admin\AppData\Local\Temp\AF01EC61317D91BC4CE4B70B972B6A5DD29DDCC18999A.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        rfusclient.exe -run_agent
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
          "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1368
          • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
            C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe -second
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:756
            • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
              C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe /tray /user
              6⤵
              • Executes dropped EXE
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1080-53-0x0000000075991000-0x0000000075993000-memory.dmp

    Filesize

    8KB

  • memory/1324-66-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB