Analysis

  • max time kernel
    155s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2023, 17:30

General

  • Target
    d15542db83fc30a75413bf0b0e945e7298f08077b2129ce6b6e02bf895413cf8.exe
  • Size 4.2MB
  • Sample230129-v3d46aha2s
  • SHA256 d15542db83fc30a75413bf0b0e945e7298f08077b2129ce6b6e02bf895413cf8
  • MD5 SHA1 SHA512 SSDEEP

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 15 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\d15542db83fc30a75413bf0b0e945e7298f08077b2129ce6b6e02bf895413cf8.exe
    "C:\Users\Admin\AppData\Local\Temp\d15542db83fc30a75413bf0b0e945e7298f08077b2129ce6b6e02bf895413cf8.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:996
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\program files\java\install.vbs"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files\Java\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4344
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1960
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1764
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
            PID:4532
          • C:\Windows\SysWOW64\regedit.exe
            regedit /s "regedit.reg"
            4⤵
            • Runs .reg file with regedit
            PID:5064
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:2136
          • \??\c:\program files\java\rutserv.exe
            rutserv.exe /silentinstall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:3276
          • \??\c:\program files\java\rutserv.exe
            rutserv.exe /firewall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:2420
          • \??\c:\program files\java\rutserv.exe
            rutserv.exe /start
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:4380
    • \??\c:\program files\java\rutserv.exe
      "c:\program files\java\rutserv.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4928
      • \??\c:\program files\java\rfusclient.exe
        "c:\program files\java\rfusclient.exe" /tray
        2⤵
        • Executes dropped EXE
        PID:2248
      • \??\c:\program files\java\rfusclient.exe
        "c:\program files\java\rfusclient.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4128
        • \??\c:\program files\java\rfusclient.exe
          "c:\program files\java\rfusclient.exe" /tray
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: SetClipboardViewer
          PID:2992

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          install.bat

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

          rfusclient.exe

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

          rfusclient.exe

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

          rfusclient.exe

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

          rutserv.exe

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

          rutserv.exe

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

          rutserv.exe

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

          rutserv.exe

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

          install.vbs

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

          regedit.reg

          • Path \??\c:\program files\java\regedit.reg
          • Size 11KB
          • SHA256 293a4edf2e75d37750aaf000a45a3d250ff4c33fc2a90c877ac2796869d26d01
          • MD5 SHA1 SHA512 SSDEEP

          rfusclient.exe

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

          rutserv.exe

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

          vp8decoder.dll

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

          vp8encoder.dll

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

          memory/2248-193-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-195-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-207-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-187-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-190-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-191-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2248-184-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2420-157-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-158-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-160-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-154-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-155-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-159-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2420-156-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/2992-200-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-202-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-204-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-203-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-198-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-199-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/2992-201-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/3276-151-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-149-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-148-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-147-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-146-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-145-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/3276-150-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4128-186-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-206-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-185-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-194-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-189-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-183-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4128-192-0x0000000000400000-0x00000000009B6000-memory.dmp

          memory/4380-188-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4380-164-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4380-163-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4380-168-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4380-167-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4380-165-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-174-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-170-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-171-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-172-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-205-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-173-0x0000000000400000-0x0000000000AB9000-memory.dmp

          memory/4928-181-0x0000000000400000-0x0000000000AB9000-memory.dmp