Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/07/2024, 05:16

General

  • Target
    oeWbvueJh180NTAwMzE0MzQ4X0VOMDIuZG9jeC5waWY=?.exe
  • Size 913KB
  • Sample240717-fx5btsxbpm
  • SHA256 7078ce11779082abbf449671f21b63c4228982ebc427ed02038c103142e34b41
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • NewRemcosFile

C2
  • 185.29.9.110:2404

  • tradezonedns.duckdns.org:2404

  • www.ozkol-aluminyum.com:2404

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

    vipvipvip

  • mouse_option

    false

  • mutex

    Rmc-42D02C

  • 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 2 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.

  • Uses the VBS compiler for execution 1 TTPs
  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\oeWbvueJh180NTAwMzE0MzQ4X0VOMDIuZG9jeC5waWY=_.exe
    "C:\Users\Admin\AppData\Local\Temp\oeWbvueJh180NTAwMzE0MzQ4X0VOMDIuZG9jeC5waWY=_.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1692
    • 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\oeWbvueJh180NTAwMzE0MzQ4X0VOMDIuZG9jeC5waWY=_.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5044
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RUxVvyvsb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2512
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RUxVvyvsb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC525.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3012
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1368

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        logs.dat

        • Path C:\ProgramData\vipvipvip\logs.dat
        • Size 144B
        • SHA256 f9ccd485aa4daf16cb8c30e27ebdd902b7ddd2d8040a616aa70a67ec07102e5d
        • MD5 SHA1 SHA512

        __PSScriptPolicyTest_0mziceah.4r1.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0mziceah.4r1.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpC525.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC525.tmp
        • Size 1KB
        • SHA256 16d5099411678e8133c28dcdd52ccb839dbb2a56642a5496b6608190da77a2f9
        • MD5 SHA1 SHA512

        memory/1368-52-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-30-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-37-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-48-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-51-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-55-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-59-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-130-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-129-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-121-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-114-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-58-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-60-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-113-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-105-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-104-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-106-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1368-31-0x0000000000400000-0x0000000000482000-memory.dmp

        memory/1692-2-0x0000000005F30000-0x00000000064D4000-memory.dmp

        memory/1692-4-0x0000000005A90000-0x0000000005A9A000-memory.dmp

        memory/1692-3-0x00000000058D0000-0x0000000005962000-memory.dmp

        memory/1692-0-0x000000007533E000-0x000000007533F000-memory.dmp

        memory/1692-9-0x0000000009350000-0x00000000093EC000-memory.dmp

        memory/1692-8-0x0000000006D80000-0x0000000006E40000-memory.dmp

        memory/1692-53-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/1692-7-0x0000000005C30000-0x0000000005C3E000-memory.dmp

        memory/1692-6-0x0000000005BF0000-0x0000000005C0A000-memory.dmp

        memory/1692-5-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/1692-1-0x0000000000E50000-0x0000000000F3A000-memory.dmp

        memory/2512-18-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/2512-91-0x0000000007280000-0x000000000728E000-memory.dmp

        memory/2512-17-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/2512-23-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/2512-97-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/2512-94-0x0000000007370000-0x0000000007378000-memory.dmp

        memory/2512-93-0x0000000007390000-0x00000000073AA000-memory.dmp

        memory/2512-63-0x0000000075BC0000-0x0000000075C0C000-memory.dmp

        memory/2512-82-0x0000000006CF0000-0x0000000006D0E000-memory.dmp

        memory/2512-83-0x0000000006F20000-0x0000000006FC3000-memory.dmp

        memory/2512-92-0x0000000007290000-0x00000000072A4000-memory.dmp

        memory/2512-90-0x0000000007250000-0x0000000007261000-memory.dmp

        memory/5044-88-0x0000000007660000-0x000000000766A000-memory.dmp

        memory/5044-89-0x0000000007870000-0x0000000007906000-memory.dmp

        memory/5044-85-0x00000000075F0000-0x000000000760A000-memory.dmp

        memory/5044-56-0x00000000062B0000-0x00000000062CE000-memory.dmp

        memory/5044-84-0x0000000007C40000-0x00000000082BA000-memory.dmp

        memory/5044-61-0x0000000007470000-0x00000000074A2000-memory.dmp

        memory/5044-62-0x0000000075BC0000-0x0000000075C0C000-memory.dmp

        memory/5044-98-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/5044-38-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/5044-24-0x0000000005CC0000-0x0000000006014000-memory.dmp

        memory/5044-20-0x0000000005B40000-0x0000000005B62000-memory.dmp

        memory/5044-22-0x0000000005C50000-0x0000000005CB6000-memory.dmp

        memory/5044-54-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/5044-21-0x0000000005BE0000-0x0000000005C46000-memory.dmp

        memory/5044-57-0x0000000006740000-0x000000000678C000-memory.dmp

        memory/5044-16-0x0000000075330000-0x0000000075AE0000-memory.dmp

        memory/5044-15-0x00000000054A0000-0x0000000005AC8000-memory.dmp

        memory/5044-14-0x00000000029E0000-0x0000000002A16000-memory.dmp