Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/06/2024, 06:31

General

  • Target
    detalletransferencia2024-06-17T205732.008 020.exe
  • Size 1.0MB
  • Sample240621-g92l5stfmn
  • SHA256 2e1d4437ef481128a02c50ef7a9a9e366bff5809c74548191e7e70452ccdf42e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • 94.156.68.54:87

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-CW7RSM

  • 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).

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\detalletransferencia2024-06-17T205732.008 020.exe
    "C:\Users\Admin\AppData\Local\Temp\detalletransferencia2024-06-17T205732.008 020.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LQnuSdRTaE.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4664
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LQnuSdRTaE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E96.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:4996
    • C:\Users\Admin\AppData\Local\Temp\detalletransferencia2024-06-17T205732.008 020.exe
      "C:\Users\Admin\AppData\Local\Temp\detalletransferencia2024-06-17T205732.008 020.exe"
      2⤵
        PID:428

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          __PSScriptPolicyTest_jzdehwew.cin.ps1

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

          tmp7E96.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp7E96.tmp
          • Size 1KB
          • SHA256 dc8804a0cdc9bcc1d383654454395534c25313e3466627f38f8d8b31b306a5ba
          • MD5 SHA1 SHA512

          memory/428-38-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-79-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-69-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-70-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-71-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-32-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-37-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-39-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-75-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-72-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-78-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-77-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-74-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-76-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-34-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-35-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-68-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/428-73-0x0000000000400000-0x0000000000482000-memory.dmp

          memory/3216-10-0x000000000A930000-0x000000000A9CC000-memory.dmp

          memory/3216-3-0x0000000005830000-0x00000000058C2000-memory.dmp

          memory/3216-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

          memory/3216-9-0x0000000006B10000-0x0000000006BD0000-memory.dmp

          memory/3216-1-0x0000000000E80000-0x0000000000F8A000-memory.dmp

          memory/3216-8-0x0000000006AB0000-0x0000000006ABC000-memory.dmp

          memory/3216-7-0x0000000006AA0000-0x0000000006AA8000-memory.dmp

          memory/3216-42-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/3216-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

          memory/3216-6-0x00000000083F0000-0x0000000008402000-memory.dmp

          memory/3216-5-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/3216-4-0x0000000005800000-0x000000000580A000-memory.dmp

          memory/4664-41-0x00000000069F0000-0x0000000006A3C000-memory.dmp

          memory/4664-55-0x0000000007BC0000-0x0000000007C63000-memory.dmp

          memory/4664-56-0x0000000008330000-0x00000000089AA000-memory.dmp

          memory/4664-57-0x0000000007CF0000-0x0000000007D0A000-memory.dmp

          memory/4664-58-0x0000000007D60000-0x0000000007D6A000-memory.dmp

          memory/4664-59-0x0000000007F70000-0x0000000008006000-memory.dmp

          memory/4664-60-0x0000000007EF0000-0x0000000007F01000-memory.dmp

          memory/4664-61-0x0000000007F20000-0x0000000007F2E000-memory.dmp

          memory/4664-62-0x0000000007F30000-0x0000000007F44000-memory.dmp

          memory/4664-63-0x0000000008030000-0x000000000804A000-memory.dmp

          memory/4664-64-0x0000000008010000-0x0000000008018000-memory.dmp

          memory/4664-67-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/4664-54-0x0000000006FB0000-0x0000000006FCE000-memory.dmp

          memory/4664-44-0x000000006F130000-0x000000006F17C000-memory.dmp

          memory/4664-43-0x0000000007980000-0x00000000079B2000-memory.dmp

          memory/4664-40-0x00000000069D0000-0x00000000069EE000-memory.dmp

          memory/4664-33-0x00000000063D0000-0x0000000006724000-memory.dmp

          memory/4664-21-0x0000000005CA0000-0x0000000005D06000-memory.dmp

          memory/4664-22-0x0000000005D10000-0x0000000005D76000-memory.dmp

          memory/4664-20-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/4664-19-0x0000000005B00000-0x0000000005B22000-memory.dmp

          memory/4664-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

          memory/4664-17-0x0000000005DA0000-0x00000000063C8000-memory.dmp

          memory/4664-15-0x0000000003090000-0x00000000030C6000-memory.dmp