Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-02-2025 15:44

General

  • Target

    PCGB2GtVYuBR0mw.exe

  • Size

    1.2MB

  • MD5

    d1badab3929dc92fac9b3f43dc628365

  • SHA1

    420d9191c0a061bab1bc48188194386e927b9ee9

  • SHA256

    3aa746d45a8db14fb49d2fddd2141a8c41919fd262ef07140f2bb73e77e53147

  • SHA512

    705a39ec61f5a995dfce601c5165e7eaa06c628a8a0b53733f142d64707e98a3df9ada4a2737f2d463bd5b5419d2357f3b4fa7763189f7af6f3e55efc0eb73cd

  • SSDEEP

    24576:P8SKy7nWMvyCyChKWoOKSJv3Fq911IphddcGQXVjiMBRa4kSvF:1nW2yCyCNoWvV81cy1lioazSv

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

tjwpn04kn.localto.net:2247

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    hytg

  • mouse_option

    false

  • mutex

    Rmc-JD0XH1

  • 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.

  • Remcos family
  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • 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 15 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PCGB2GtVYuBR0mw.exe
    "C:\Users\Admin\AppData\Local\Temp\PCGB2GtVYuBR0mw.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:4212
    • 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\PCGB2GtVYuBR0mw.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2128
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SUbPwEbpBhA.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SUbPwEbpBhA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC7A5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1864
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:2392
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1856
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\nnybpsjaxiemymxawvsblury"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4964
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\phduqktclqwraalmnfeunhlhwobq"
          3⤵
            PID:424
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\phduqktclqwraalmnfeunhlhwobq"
            3⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:1392
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\zjrfqdevzyoelhhqxqzwylgyfukzlau"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5032

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\hytg\logs.dat

        Filesize

        144B

        MD5

        66863654c673c34cd99c6b767cc39950

        SHA1

        12cf880114e1dc4d8afdbe296b979ef1371e9d5a

        SHA256

        5a794eb88ab27177710d95f7518c3196b007819a5dad387c15204178586c322a

        SHA512

        0b8d19210adeefc50919680c9ff369675e748a504e3e77ceabbf150cec8ed7d713108fff074d3a3e6fd08d4796da28acf35ba331e8dfa0d96edd808d02236db9

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        968cb9309758126772781b83adb8a28f

        SHA1

        8da30e71accf186b2ba11da1797cf67f8f78b47c

        SHA256

        92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

        SHA512

        4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        18KB

        MD5

        7c627e50385a21cc226c5d46fa8811d2

        SHA1

        7055d675d047a29c1d89fffd954a1553d83f2971

        SHA256

        1fc625a5c44c631d29ba364c2b4709b23891f057d4a7d3ac0cc1c4e61d76ec1f

        SHA512

        22cece12bb8ac741fc9a553b92bda6bc33ad72334d0654232fa659edfd516882a8f547a417d3c6a7feb9e3b0735fb88dbc8ba62dfedd1b497dbad9baadffc0fa

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_osrsgb5s.4ka.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\nnybpsjaxiemymxawvsblury

        Filesize

        4KB

        MD5

        2fbd443c784ba69b877ad51b7f90c781

        SHA1

        72b348683771b4d8d26320877dae610a1cdaa2a4

        SHA256

        b1fc6c37cc1b8a4e1cd1b485a2ca068f6d7bad07baa25b3f81b515874c11ea28

        SHA512

        08e1aa983a9d29f1839a1a9e85fb1bff572ddadbfa37e733f84f9391a2aa6acb94262ee264b7ecd3a9c80099c0e3d0e614410df002518d886fe3e056b7ec0cac

      • C:\Users\Admin\AppData\Local\Temp\tmpC7A5.tmp

        Filesize

        1KB

        MD5

        140c3cb6df5d76a12f87025c8d5290f4

        SHA1

        1e7a007632e2526c8f10b54c7dd064436cf31248

        SHA256

        b5c07a4da0a8913cb9dbacf4936175ef874b93c5a1f1ac282dee7c0b5df3691d

        SHA512

        9deb729cbe99638b7f1cf029178b1f24355b010468216463ef1a68c29f8cc26524b8b42f7bf1f31c9774a2d9a67a106f1a48e73ee385f8a2a446116874eaec5c

      • memory/1392-111-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1392-115-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1392-113-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/1856-98-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-49-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-87-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-88-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-148-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-149-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-127-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/1856-56-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-128-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/1856-129-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-132-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-133-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-140-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-105-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-46-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-47-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-52-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-124-0x0000000010000000-0x0000000010019000-memory.dmp

        Filesize

        100KB

      • memory/1856-99-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-104-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-141-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/1856-102-0x0000000000400000-0x0000000000480000-memory.dmp

        Filesize

        512KB

      • memory/2128-70-0x000000006F260000-0x000000006F2AC000-memory.dmp

        Filesize

        304KB

      • memory/2128-20-0x0000000005860000-0x0000000005882000-memory.dmp

        Filesize

        136KB

      • memory/2128-86-0x0000000007D20000-0x0000000007D34000-memory.dmp

        Filesize

        80KB

      • memory/2128-18-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2128-16-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2128-97-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2128-25-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/2128-90-0x0000000007E00000-0x0000000007E08000-memory.dmp

        Filesize

        32KB

      • memory/2128-89-0x0000000007E20000-0x0000000007E3A000-memory.dmp

        Filesize

        104KB

      • memory/2128-17-0x0000000005940000-0x0000000005F68000-memory.dmp

        Filesize

        6.2MB

      • memory/2128-15-0x0000000002EA0000-0x0000000002ED6000-memory.dmp

        Filesize

        216KB

      • memory/2128-84-0x0000000007CE0000-0x0000000007CF1000-memory.dmp

        Filesize

        68KB

      • memory/2128-85-0x0000000007D10000-0x0000000007D1E000-memory.dmp

        Filesize

        56KB

      • memory/3752-21-0x00000000057A0000-0x0000000005806000-memory.dmp

        Filesize

        408KB

      • memory/3752-83-0x0000000007A70000-0x0000000007B06000-memory.dmp

        Filesize

        600KB

      • memory/3752-82-0x0000000007860000-0x000000000786A000-memory.dmp

        Filesize

        40KB

      • memory/3752-71-0x0000000007E30000-0x00000000084AA000-memory.dmp

        Filesize

        6.5MB

      • memory/3752-81-0x00000000077F0000-0x000000000780A000-memory.dmp

        Filesize

        104KB

      • memory/3752-69-0x00000000074C0000-0x0000000007563000-memory.dmp

        Filesize

        652KB

      • memory/3752-57-0x0000000006A80000-0x0000000006AB2000-memory.dmp

        Filesize

        200KB

      • memory/3752-68-0x0000000006A60000-0x0000000006A7E000-memory.dmp

        Filesize

        120KB

      • memory/3752-96-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3752-58-0x000000006F260000-0x000000006F2AC000-memory.dmp

        Filesize

        304KB

      • memory/3752-55-0x0000000006860000-0x00000000068AC000-memory.dmp

        Filesize

        304KB

      • memory/3752-19-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3752-53-0x00000000064C0000-0x00000000064DE000-memory.dmp

        Filesize

        120KB

      • memory/3752-37-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3752-26-0x0000000005EB0000-0x0000000006204000-memory.dmp

        Filesize

        3.3MB

      • memory/3752-23-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/3752-22-0x0000000005E40000-0x0000000005EA6000-memory.dmp

        Filesize

        408KB

      • memory/4212-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

        Filesize

        4KB

      • memory/4212-5-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4212-1-0x0000000000A50000-0x0000000000B86000-memory.dmp

        Filesize

        1.2MB

      • memory/4212-2-0x0000000005B80000-0x0000000006124000-memory.dmp

        Filesize

        5.6MB

      • memory/4212-3-0x00000000055D0000-0x0000000005662000-memory.dmp

        Filesize

        584KB

      • memory/4212-4-0x0000000005570000-0x000000000557A000-memory.dmp

        Filesize

        40KB

      • memory/4212-6-0x0000000005800000-0x000000000589C000-memory.dmp

        Filesize

        624KB

      • memory/4212-54-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4212-10-0x000000000A8D0000-0x000000000A994000-memory.dmp

        Filesize

        784KB

      • memory/4212-9-0x00000000748F0000-0x00000000750A0000-memory.dmp

        Filesize

        7.7MB

      • memory/4212-8-0x00000000748FE000-0x00000000748FF000-memory.dmp

        Filesize

        4KB

      • memory/4212-7-0x0000000005B20000-0x0000000005B3E000-memory.dmp

        Filesize

        120KB

      • memory/4964-112-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4964-110-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/4964-114-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/5032-121-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/5032-120-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/5032-116-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB