Analysis

  • max time kernel
    148s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    08/12/2023, 14:00

General

  • Target

    9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe

  • Size

    549KB

  • MD5

    29fbf68632718884833492e5a21f3f87

  • SHA1

    e4ae52d257e9265568a24e1165bf1b13aa8c8d90

  • SHA256

    9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4

  • SHA512

    821bafb4fcad712aa9cb3d7a58c71894a9692198cffb4038def13b2bbac877395c18ca3a44ea111f426682eceac793b510666b418b4586f01c014c1ab3718bec

  • SSDEEP

    12288:I4Actcny0/xPCOgVq+PFhmu01D15/dUaUO+nYj0L41c38BcDqV5:9AIcn3wOyqSFhHcFUaKYjNc3Wp

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

95.214.27.6:3348

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-CJTO0J

  • 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.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
    "C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c powershell set-mppreference -exclusionpath C:\
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell set-mppreference -exclusionpath C:\
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2028
    • C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
      C:\Users\Admin\AppData\Local\Temp\9c52b5632fae481ff2c6beb326577f8785b757fe4101857b98f59b3000ecc3f4.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2164

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\remcos\logs.dat

          Filesize

          144B

          MD5

          1bb9814893854714abedcc46c2e5e29b

          SHA1

          6b5b06103a381c0bcd12b82b214df9ba48652ae9

          SHA256

          bb4fe8cac594005ad4f4c55443c311f65a161379ea2fdb0358cf23b7f4fb26d9

          SHA512

          812621062fa8cef003f5a4edcde0b8199072dda4b56b58bdde53dd39ff581e49e45361d22f60a33eebc4b63b3e7360b2fca84af33ba518de666e875c0edeb6a6

        • memory/2028-31-0x0000000073C90000-0x000000007423B000-memory.dmp

          Filesize

          5.7MB

        • memory/2028-37-0x0000000073C90000-0x000000007423B000-memory.dmp

          Filesize

          5.7MB

        • memory/2028-36-0x0000000002930000-0x0000000002970000-memory.dmp

          Filesize

          256KB

        • memory/2028-35-0x0000000002930000-0x0000000002970000-memory.dmp

          Filesize

          256KB

        • memory/2028-34-0x0000000002930000-0x0000000002970000-memory.dmp

          Filesize

          256KB

        • memory/2028-33-0x0000000073C90000-0x000000007423B000-memory.dmp

          Filesize

          5.7MB

        • memory/2028-32-0x0000000073C90000-0x000000007423B000-memory.dmp

          Filesize

          5.7MB

        • memory/2164-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2164-11-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-16-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-76-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-15-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-13-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-12-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-19-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-21-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-14-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-23-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-26-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-28-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-29-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-30-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-57-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-9-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-7-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-75-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-70-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-68-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-63-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-41-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-43-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-44-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-62-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-49-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-50-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2164-56-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/2908-22-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2908-1-0x00000000743E0000-0x0000000074ACE000-memory.dmp

          Filesize

          6.9MB

        • memory/2908-2-0x0000000000880000-0x00000000008FE000-memory.dmp

          Filesize

          504KB

        • memory/2908-3-0x0000000004BC0000-0x0000000004C00000-memory.dmp

          Filesize

          256KB

        • memory/2908-4-0x0000000000900000-0x000000000096E000-memory.dmp

          Filesize

          440KB

        • memory/2908-5-0x0000000002120000-0x000000000216C000-memory.dmp

          Filesize

          304KB

        • memory/2908-0-0x0000000000970000-0x00000000009FE000-memory.dmp

          Filesize

          568KB