Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2024, 00:56

General

  • Target
    30586cbe469e9512308408268d1cf7cf.exe
  • Size 936KB
  • Sample240928-back3sycjm
  • SHA256 c0b8ab0ce70e5ef60f0e3a39efb2a33b2ca93d7c129a08fd05323575fb4a3dad
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 23.106.127.109:5432

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-8RHX5L

  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe
    "C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4068
    • C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe
      "C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3696

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_r2nae2no.o3c.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r2nae2no.o3c.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        memory/3084-6-0x0000000005920000-0x0000000005932000-memory.dmp

        memory/3084-2-0x0000000005930000-0x0000000005ED4000-memory.dmp

        memory/3084-3-0x0000000005380000-0x0000000005412000-memory.dmp

        memory/3084-5-0x00000000749A0000-0x0000000075150000-memory.dmp

        memory/3084-4-0x0000000005340000-0x000000000534A000-memory.dmp

        memory/3084-18-0x00000000749A0000-0x0000000075150000-memory.dmp

        memory/3084-7-0x00000000749AE000-0x00000000749AF000-memory.dmp

        memory/3084-8-0x00000000749A0000-0x0000000075150000-memory.dmp

        memory/3084-9-0x0000000007840000-0x0000000007900000-memory.dmp

        memory/3084-10-0x0000000009F80000-0x000000000A01C000-memory.dmp

        memory/3084-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

        memory/3084-1-0x0000000000830000-0x0000000000920000-memory.dmp

        memory/3696-38-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-69-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-13-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-17-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-16-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-79-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-78-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-77-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-23-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-76-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-75-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-25-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-15-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-74-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-73-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-12-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-11-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-72-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-71-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/3696-70-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/4068-26-0x0000000005500000-0x0000000005522000-memory.dmp

        memory/4068-68-0x0000000074A40000-0x00000000751F0000-memory.dmp

        memory/4068-55-0x00000000069A0000-0x00000000069BE000-memory.dmp

        memory/4068-56-0x00000000073C0000-0x0000000007463000-memory.dmp

        memory/4068-57-0x0000000007D40000-0x00000000083BA000-memory.dmp

        memory/4068-58-0x0000000007700000-0x000000000771A000-memory.dmp

        memory/4068-59-0x0000000007770000-0x000000000777A000-memory.dmp

        memory/4068-60-0x0000000007980000-0x0000000007A16000-memory.dmp

        memory/4068-61-0x0000000007900000-0x0000000007911000-memory.dmp

        memory/4068-62-0x0000000007930000-0x000000000793E000-memory.dmp

        memory/4068-63-0x0000000007940000-0x0000000007954000-memory.dmp

        memory/4068-64-0x0000000007A40000-0x0000000007A5A000-memory.dmp

        memory/4068-65-0x0000000007A20000-0x0000000007A28000-memory.dmp

        memory/4068-45-0x00000000708D0000-0x000000007091C000-memory.dmp

        memory/4068-44-0x00000000069C0000-0x00000000069F2000-memory.dmp

        memory/4068-43-0x0000000006420000-0x000000000646C000-memory.dmp

        memory/4068-42-0x00000000063D0000-0x00000000063EE000-memory.dmp

        memory/4068-39-0x0000000005EF0000-0x0000000006244000-memory.dmp

        memory/4068-27-0x00000000055A0000-0x0000000005606000-memory.dmp

        memory/4068-28-0x0000000005D80000-0x0000000005DE6000-memory.dmp

        memory/4068-21-0x0000000074A40000-0x00000000751F0000-memory.dmp

        memory/4068-22-0x0000000005750000-0x0000000005D78000-memory.dmp

        memory/4068-24-0x0000000074A40000-0x00000000751F0000-memory.dmp

        memory/4068-20-0x0000000002AB0000-0x0000000002AE6000-memory.dmp

        memory/4068-19-0x0000000074A4E000-0x0000000074A4F000-memory.dmp