Analysis

  • max time kernel
    149s
  • max time network
    193s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 02:30

General

  • Target

    SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe

  • Size

    1.1MB

  • MD5

    224c796102223bae03c696a5ba290502

  • SHA1

    86df52d59eb049d466dc0ac7db9268a279cc65c1

  • SHA256

    afd3e4f2219c7e1e0d279ed5eb653eac11a37aa59727af4522776d3289d1cb1c

  • SHA512

    c4f8dddc6d6a0e33ab9d98258c83bf2330fb2882acea82cdc0666fb7609f8bf66e6665a879b926d1e43069ad84269bd0105435f96a31341b6ccc9325c555ca59

  • SSDEEP

    24576:k+K+yAIDFFjlPMCfYIZf12xtE33Jjxn5DgfTR1KnV40sMxJTAglXXK1BI:6FvMCfYyNMtojx+HAVjJJTvK1

Malware Config

Extracted

Family

remcos

Botnet

FAITH

C2

185.206.225.51:18853

127.0.0.1:18853

10.16.225.165:18853

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-QQ9K6X

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:472
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe
      C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe
      2⤵
        PID:1984
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.EOQ.gen.Eldorado.5598.8937.exe
        2⤵
          PID:1608

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/472-57-0x0000000000000000-mapping.dmp

      • memory/472-60-0x000000006E4B0000-0x000000006EA5B000-memory.dmp

        Filesize

        5.7MB

      • memory/472-59-0x000000006E4B0000-0x000000006EA5B000-memory.dmp

        Filesize

        5.7MB

      • memory/1608-64-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-67-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-79-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-61-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-62-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-78-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-66-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-77-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-68-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-69-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-71-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-73-0x0000000000400000-0x000000000047B000-memory.dmp

        Filesize

        492KB

      • memory/1608-74-0x000000000043133D-mapping.dmp

      • memory/1716-56-0x00000000760C1000-0x00000000760C3000-memory.dmp

        Filesize

        8KB

      • memory/1716-54-0x00000000013E0000-0x0000000001500000-memory.dmp

        Filesize

        1.1MB

      • memory/1716-55-0x0000000004900000-0x0000000004B38000-memory.dmp

        Filesize

        2.2MB