Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 16:06

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 use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 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 use of WriteProcessMemory
    PID:1160
    • 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:3452
      • C:\ProgramData\Remcos\remcos.exe
        "C:\ProgramData\Remcos\remcos.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:384
        • 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:1300

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Remcos\logs.dat

    Filesize

    144B

    MD5

    9b8b9afad9422cc48caa31e5fbc127c8

    SHA1

    1a1bd3dd93a8ef43be12b863585f35fe067256b9

    SHA256

    933688623b2919c80e11ccafa57d9efd25dcffec6fbf79b5f039f66deb1a378f

    SHA512

    b3eeff2b0daf113695cc0e6b01348fcff025909bb8f971963307ba32edbc5b0017d346b5cdc54a06f8c262ccc52d7641c55531f51529160114f443ec7e813a37

  • C:\ProgramData\Remcos\remcos.exe

    Filesize

    975KB

    MD5

    6bc3017aa0b572802c23e8fad4c7a612

    SHA1

    262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1

    SHA256

    062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

    SHA512

    86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354

  • memory/384-42-0x00000000746A0000-0x0000000074E50000-memory.dmp

    Filesize

    7.7MB

  • memory/384-32-0x0000000007450000-0x0000000007472000-memory.dmp

    Filesize

    136KB

  • memory/384-31-0x00000000746A0000-0x0000000074E50000-memory.dmp

    Filesize

    7.7MB

  • memory/384-30-0x00000000746AE000-0x00000000746AF000-memory.dmp

    Filesize

    4KB

  • memory/1160-10-0x00000000082B0000-0x0000000008370000-memory.dmp

    Filesize

    768KB

  • memory/1160-5-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

  • memory/1160-8-0x00000000057B0000-0x00000000057BC000-memory.dmp

    Filesize

    48KB

  • memory/1160-9-0x0000000002BD0000-0x0000000002BE0000-memory.dmp

    Filesize

    64KB

  • memory/1160-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

    Filesize

    4KB

  • memory/1160-11-0x0000000008410000-0x00000000084AC000-memory.dmp

    Filesize

    624KB

  • memory/1160-1-0x00000000008A0000-0x000000000099A000-memory.dmp

    Filesize

    1000KB

  • memory/1160-7-0x0000000005510000-0x0000000005532000-memory.dmp

    Filesize

    136KB

  • memory/1160-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1160-3-0x0000000005260000-0x00000000052F2000-memory.dmp

    Filesize

    584KB

  • memory/1160-18-0x0000000074DC0000-0x0000000075570000-memory.dmp

    Filesize

    7.7MB

  • memory/1160-6-0x0000000007C90000-0x0000000007D8A000-memory.dmp

    Filesize

    1000KB

  • memory/1160-4-0x0000000005400000-0x000000000540A000-memory.dmp

    Filesize

    40KB

  • memory/1300-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-75-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-67-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-59-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1300-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3452-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3452-13-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3452-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3452-15-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3452-16-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB