Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/01/2021, 12:53

General

  • Target
    SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.exe
  • Size 1.7MB
  • Sample210109-deb6bhpc6a
  • SHA256 facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • remcos

C2
  • swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Executes dropped EXE 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 24 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Program crash 2 IoCs
  • Delays execution with timeout.exe 6 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 45 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 106 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:500
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:2840
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:2932
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3984
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:2320
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.exe"
      2⤵
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3476
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\vlc.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3892
          • C:\Users\Admin\AppData\Roaming\vlc.exe
            C:\Users\Admin\AppData\Roaming\vlc.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1320
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c timeout 1
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1604
              • C:\Windows\SysWOW64\timeout.exe
                timeout 1
                7⤵
                • Delays execution with timeout.exe
                PID:3096
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c timeout 1
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1020
              • C:\Windows\SysWOW64\timeout.exe
                timeout 1
                7⤵
                • Delays execution with timeout.exe
                PID:2268
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c timeout 1
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1508
              • C:\Windows\SysWOW64\timeout.exe
                timeout 1
                7⤵
                • Delays execution with timeout.exe
                PID:3824
            • C:\Users\Admin\AppData\Roaming\vlc.exe
              "C:\Users\Admin\AppData\Roaming\vlc.exe"
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              PID:2228
              • C:\Users\Admin\AppData\Roaming\vlc.exe
                C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\akzabskjvmzskg"
                7⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:3936
              • C:\Users\Admin\AppData\Roaming\vlc.exe
                C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\ngkdddfffcjkxslcbkvt"
                7⤵
                • Executes dropped EXE
                PID:2200
              • C:\Users\Admin\AppData\Roaming\vlc.exe
                C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\cefkckulrurfnmpys"
                7⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:1140
              • C:\Users\Admin\AppData\Roaming\vlc.exe
                C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\xvlpepkcgxkqlusrbhxzqldxphyjnl"
                7⤵
                  PID:200
                • C:\Users\Admin\AppData\Roaming\vlc.exe
                  C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\xvlpepkcgxkqlusrbhxzqldxphyjnl"
                  7⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2684
                • C:\Users\Admin\AppData\Roaming\vlc.exe
                  C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\zxyifhvwufcvvagvksjatyyoqnqsgwjrwb"
                  7⤵
                    PID:2144
                  • C:\Users\Admin\AppData\Roaming\vlc.exe
                    C:\Users\Admin\AppData\Roaming\vlc.exe /stext "C:\Users\Admin\AppData\Local\Temp\jrdaga"
                    7⤵
                      PID:2936
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1568
                    6⤵
                    • Program crash
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2768
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 500 -s 1548
            2⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3996

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              memory/500-3-0x0000000000920000-0x0000000000921000-memory.dmp

              memory/500-6-0x00000000052F0000-0x0000000005320000-memory.dmp

              memory/500-2-0x0000000073D50000-0x000000007443E000-memory.dmp

              memory/500-5-0x0000000005370000-0x0000000005371000-memory.dmp

              memory/500-11-0x0000000006520000-0x0000000006521000-memory.dmp

              memory/1140-63-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/1140-65-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/1140-59-0x0000000000400000-0x0000000000424000-memory.dmp

              memory/1320-24-0x0000000073D50000-0x000000007443E000-memory.dmp

              memory/2200-64-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/2200-68-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/2200-69-0x0000000000400000-0x0000000000457000-memory.dmp

              memory/2228-39-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/2768-40-0x0000000004650000-0x0000000004651000-memory.dmp

              memory/2768-41-0x0000000004650000-0x0000000004651000-memory.dmp

              memory/3476-16-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/3476-14-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/3936-61-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/3936-58-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/3936-53-0x0000000000400000-0x0000000000478000-memory.dmp

              memory/3996-19-0x0000000004A30000-0x0000000004A31000-memory.dmp