Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2023, 07:19

General

  • Target

    GH09876545600-87.exe

  • Size

    1.3MB

  • MD5

    f0b143f0d8012b2acb59e94544ee8a95

  • SHA1

    215cd6adf283a17bf4c717e27842bc1e9bfb2058

  • SHA256

    1f0a225b3b04a26d777a315cb1cacde6d5b0d7fc9e182a96ef035b41adada2de

  • SHA512

    64b5dd4b4f14c090a06cbfa3dc69028efdc9c2c973afe7b3449eb4211611d8f373124eef14553548dd0cfc18b057d9518000ea6a8082fe1987c05b89f9a9dfa1

  • SSDEEP

    24576:HYc6g/pOKKeFZYokY8+VnPZhNsqWOgjcjqQvWV:HrZYokYNnFsfxjcjqbV

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-IZFV1M

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe
    "C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\GH09876545600-87.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2748
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2036

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          d897b203e55bf7879a7c8e45cd5bdcff

          SHA1

          343f9dc924a799fca45c87c73f27ba7db41cf227

          SHA256

          a79232f6e5f55954b5857673cd4ca6b72f7c11d82504c1847b570dd6e2507d8f

          SHA512

          4d011abb4768e9db218ac0a661802da3f4e872b9034281ecd9adad08d6117b489ed3ba6b4f4461591b8f5d877689b3d56ee1913375fbd1aea1f1eea8d0f7af18

        • memory/2036-28-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-26-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-71-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-70-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-65-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-63-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-58-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-57-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-52-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-16-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-17-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-15-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-18-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-14-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-13-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-23-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-51-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-45-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-44-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2036-29-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-32-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-31-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-20-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-33-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-38-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2036-39-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2748-11-0x000000006FAE0000-0x000000007008B000-memory.dmp

          Filesize

          5.7MB

        • memory/2748-8-0x0000000002840000-0x0000000002880000-memory.dmp

          Filesize

          256KB

        • memory/2748-9-0x0000000002840000-0x0000000002880000-memory.dmp

          Filesize

          256KB

        • memory/2748-7-0x000000006FAE0000-0x000000007008B000-memory.dmp

          Filesize

          5.7MB

        • memory/2748-6-0x000000006FAE0000-0x000000007008B000-memory.dmp

          Filesize

          5.7MB

        • memory/2916-0-0x0000000000040000-0x000000000018A000-memory.dmp

          Filesize

          1.3MB

        • memory/2916-2-0x0000000001FB0000-0x000000000205E000-memory.dmp

          Filesize

          696KB

        • memory/2916-25-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2916-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2916-12-0x0000000000570000-0x000000000057A000-memory.dmp

          Filesize

          40KB

        • memory/2916-3-0x0000000004540000-0x0000000004580000-memory.dmp

          Filesize

          256KB