Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02/05/2022, 17:24

General

  • Target
    c770322a2b938abb69531118353c43aeb8f47d69a0a756434f57d65716c2deb6.exe
  • Size 4.1MB
  • Sample220502-vypebsdgfl
  • SHA256 c770322a2b938abb69531118353c43aeb8f47d69a0a756434f57d65716c2deb6
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • RMS

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

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • ASPack v2.12-2.42 9 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 7 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in Program Files directory 16 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c770322a2b938abb69531118353c43aeb8f47d69a0a756434f57d65716c2deb6.exe
    "C:\Users\Admin\AppData\Local\Temp\c770322a2b938abb69531118353c43aeb8f47d69a0a756434f57d65716c2deb6.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\program files\sony\install.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files\sony\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4856
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2132
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2496
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
            PID:2544
          • C:\Windows\SysWOW64\regedit.exe
            regedit /s "regedit.reg"
            4⤵
            • Runs .reg file with regedit
            PID:4564
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:3548
          • \??\c:\program files\sony\rutserv.exe
            rutserv.exe /silentinstall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:948
          • \??\c:\program files\sony\rutserv.exe
            rutserv.exe /firewall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:4788
          • \??\c:\program files\sony\rutserv.exe
            rutserv.exe /start
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1124
    • \??\c:\program files\sony\rutserv.exe
      "c:\program files\sony\rutserv.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2084
      • \??\c:\program files\sony\rfusclient.exe
        "c:\program files\sony\rfusclient.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4296
        • \??\c:\program files\sony\rfusclient.exe
          "c:\program files\sony\rfusclient.exe" /tray
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: SetClipboardViewer
          PID:2476
      • \??\c:\program files\sony\rfusclient.exe
        "c:\program files\sony\rfusclient.exe" /tray
        2⤵
        • Executes dropped EXE
        PID:5084

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          install.bat

          • Path C:\Program Files\sony\install.bat
          • Size 480B
          • SHA256 240020a1a1941d1455135b5cb134e502a13b148be16cbb1552482aa03c29f8f3
          • MD5 SHA1 SHA512

          rfusclient.exe

          • Path C:\Program Files\sony\rfusclient.exe
          • Size 1.5MB
          • SHA256 dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
          • MD5 SHA1 SHA512 SSDEEP

          rfusclient.exe

          • Path C:\Program Files\sony\rfusclient.exe
          • Size 1.5MB
          • SHA256 dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
          • MD5 SHA1 SHA512 SSDEEP

          rfusclient.exe

          • Path C:\Program Files\sony\rfusclient.exe
          • Size 1.5MB
          • SHA256 dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
          • MD5 SHA1 SHA512 SSDEEP

          rutserv.exe

          • Path C:\Program Files\sony\rutserv.exe
          • Size 1.7MB
          • SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
          • MD5 SHA1 SHA512 SSDEEP

          rutserv.exe

          • Path C:\Program Files\sony\rutserv.exe
          • Size 1.7MB
          • SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
          • MD5 SHA1 SHA512 SSDEEP

          rutserv.exe

          • Path C:\Program Files\sony\rutserv.exe
          • Size 1.7MB
          • SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
          • MD5 SHA1 SHA512 SSDEEP

          rutserv.exe

          • Path C:\Program Files\sony\rutserv.exe
          • Size 1.7MB
          • SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
          • MD5 SHA1 SHA512 SSDEEP

          install.vbs

          • Path C:\program files\sony\install.vbs
          • Size 117B
          • SHA256 a7b067e9e4d44efe579c7cdb1e847d61af2323d3d73c6fffb22e178ae476f420
          • MD5 SHA1 SHA512

          regedit.reg

          • Path \??\c:\program files\sony\regedit.reg
          • Size 11KB
          • SHA256 962ae13f3c26eca28fb568e055d67bb49ce37854f90fc00b3536db1e9f159860
          • MD5 SHA1 SHA512 SSDEEP

          rfusclient.exe

          • Path \??\c:\program files\sony\rfusclient.exe
          • Size 1.5MB
          • SHA256 dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9
          • MD5 SHA1 SHA512 SSDEEP

          rutserv.exe

          • Path \??\c:\program files\sony\rutserv.exe
          • Size 1.7MB
          • SHA256 1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6
          • MD5 SHA1 SHA512 SSDEEP

          vp8decoder.dll

          • Path \??\c:\program files\sony\vp8decoder.dll
          • Size 155KB
          • SHA256 4c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74
          • MD5 SHA1 SHA512 SSDEEP

          vp8encoder.dll

          • Path \??\c:\program files\sony\vp8encoder.dll
          • Size 593KB
          • SHA256 81af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172
          • MD5 SHA1 SHA512 SSDEEP

          memory/948-143-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/948-145-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/948-146-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/948-147-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/948-148-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/948-144-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-162-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-161-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-163-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-160-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-173-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/1124-159-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-168-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-169-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-166-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-196-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-167-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2084-165-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2476-191-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2476-192-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2476-193-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2476-190-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2476-194-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2476-195-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4296-185-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4296-186-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4296-183-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4296-179-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4296-181-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4788-154-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4788-153-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4788-155-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4788-152-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4788-156-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4788-151-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/5084-182-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/5084-187-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/5084-184-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/5084-180-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/5084-178-0x0000000000400000-0x00000000009B6000-memory.dmp