Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 16:08

General

  • Target

    PEDIDO DE COMPRA I122825.exe

  • Size

    975KB

  • MD5

    6bc3017aa0b572802c23e8fad4c7a612

  • SHA1

    262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1

  • SHA256

    062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

  • SHA512

    86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354

  • SSDEEP

    24576:8LZq8lDaXLp5C7UMUoloIG8h3IP8trNwNoZ:8oUDaXLnC7Ia68FCO

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

46.183.223.69:13452

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-UJROWN

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe
    "C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe
      "C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe"
      2⤵
        PID:1156
      • C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe
        "C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe"
        2⤵
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:3596
        • C:\ProgramData\Remcos\remcos.exe
          "C:\ProgramData\Remcos\remcos.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\ProgramData\Remcos\remcos.exe
            "C:\ProgramData\Remcos\remcos.exe"
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetWindowsHookEx
            PID:836

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Remcos\logs.dat

      Filesize

      144B

      MD5

      918c07f194155472fd442957fca8d020

      SHA1

      c81d0137ecb4aaab2d2a9472dda5a73d06701360

      SHA256

      c8e2b7b7c90247785571642961222b7a8b71c09a715cbad25f34145c1b716a2d

      SHA512

      01fff65ff3907f9d51276dade4dd107a7d70de8e180ca40445598e2d2136a5adeb1d540476b7f9723e1a04c6fdc7ed824d9e6a4e3b7eeff175567dc0c7ff0d77

    • C:\ProgramData\Remcos\remcos.exe

      Filesize

      975KB

      MD5

      6bc3017aa0b572802c23e8fad4c7a612

      SHA1

      262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1

      SHA256

      062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

      SHA512

      86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354

    • memory/836-53-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-77-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-69-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-62-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-61-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-54-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-39-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-70-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-47-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-45-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-44-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-43-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-35-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-36-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-78-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/836-41-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1852-31-0x0000000005BD0000-0x0000000005BF2000-memory.dmp

      Filesize

      136KB

    • memory/1852-29-0x000000007438E000-0x000000007438F000-memory.dmp

      Filesize

      4KB

    • memory/1852-30-0x0000000074380000-0x0000000074B30000-memory.dmp

      Filesize

      7.7MB

    • memory/1852-42-0x0000000074380000-0x0000000074B30000-memory.dmp

      Filesize

      7.7MB

    • memory/2480-6-0x0000000008160000-0x000000000825A000-memory.dmp

      Filesize

      1000KB

    • memory/2480-5-0x0000000005770000-0x000000000577A000-memory.dmp

      Filesize

      40KB

    • memory/2480-1-0x0000000000C70000-0x0000000000D6A000-memory.dmp

      Filesize

      1000KB

    • memory/2480-2-0x0000000005DE0000-0x0000000006384000-memory.dmp

      Filesize

      5.6MB

    • memory/2480-32-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/2480-3-0x0000000005830000-0x00000000058C2000-memory.dmp

      Filesize

      584KB

    • memory/2480-4-0x0000000074B70000-0x0000000075320000-memory.dmp

      Filesize

      7.7MB

    • memory/2480-11-0x00000000085C0000-0x000000000865C000-memory.dmp

      Filesize

      624KB

    • memory/2480-10-0x0000000006C00000-0x0000000006CC0000-memory.dmp

      Filesize

      768KB

    • memory/2480-9-0x00000000051B0000-0x00000000051C0000-memory.dmp

      Filesize

      64KB

    • memory/2480-8-0x0000000005DC0000-0x0000000005DCC000-memory.dmp

      Filesize

      48KB

    • memory/2480-7-0x0000000005B20000-0x0000000005B42000-memory.dmp

      Filesize

      136KB

    • memory/2480-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

      Filesize

      4KB

    • memory/3596-28-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-12-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-13-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-15-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/3596-17-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB