Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 03:26

General

  • Target

    d0ff0914a4014573716701a665b7950e49594452a6a7418a049553f8c7c1be73.exe

  • Size

    3.1MB

  • MD5

    f611f4dd12e51ca7a946f308ebd5e04c

  • SHA1

    2f7d049ec2b3ae6a8113b499d92ebc117eed890c

  • SHA256

    d0ff0914a4014573716701a665b7950e49594452a6a7418a049553f8c7c1be73

  • SHA512

    7057884406612bff108f1e315efacf83a99f1ec725b4496e737a57938b67edf5f23476b8f99395ec9f8ba355a68779fd5a2668b9caf0ca32b8862529eb413b83

  • SSDEEP

    49152:rvuz92YpaQI6oPZlhP3ReybewozV+vJH4RoGdeJYTHHB72eh2NT:rv092YpaQI6oPZlhP3YybewozV+e

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

SGVP

C2

192.168.1.9:4782

150.129.206.176:4782

Ai-Sgvp-33452.portmap.host:33452

Mutex

a27420c6-f346-4b84-b7bd-6b3eab5a43cb

Attributes
  • encryption_key

    09BBDA8FF0524296F02F8F81158F33C0AA74D487

  • install_name

    User Application Data.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windowns Client Startup

  • subdirectory

    Quasar

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 5 IoCs
  • Executes dropped EXE 3 IoCs
  • Drops file in System32 directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 39 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:\Users\Admin\AppData\Local\Temp\d0ff0914a4014573716701a665b7950e49594452a6a7418a049553f8c7c1be73.exe
    "C:\Users\Admin\AppData\Local\Temp\d0ff0914a4014573716701a665b7950e49594452a6a7418a049553f8c7c1be73.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\system32\schtasks.exe
      "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Windows\system32\Quasar\User Application Data.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2076
    • C:\Windows\system32\Quasar\User Application Data.exe
      "C:\Windows\system32\Quasar\User Application Data.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2804
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Windows\system32\Quasar\User Application Data.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2788
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\VMiJN5uAFyTN.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1572
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:2272
          • C:\Windows\system32\PING.EXE
            ping -n 10 localhost
            4⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:2116
          • C:\Windows\system32\Quasar\User Application Data.exe
            "C:\Windows\system32\Quasar\User Application Data.exe"
            4⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2320
            • C:\Windows\system32\schtasks.exe
              "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Windows\system32\Quasar\User Application Data.exe" /rl HIGHEST /f
              5⤵
              • Scheduled Task/Job: Scheduled Task
              PID:2976
            • C:\Windows\system32\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\ayhSlgdLigbu.bat" "
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1592
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:2192
                • C:\Windows\system32\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • System Network Configuration Discovery: Internet Connection Discovery
                  • Runs ping.exe
                  PID:1876
                • C:\Windows\system32\Quasar\User Application Data.exe
                  "C:\Windows\system32\Quasar\User Application Data.exe"
                  6⤵
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of SetWindowsHookEx
                  • Suspicious use of WriteProcessMemory
                  PID:1060
                  • C:\Windows\system32\schtasks.exe
                    "schtasks" /create /tn "Windowns Client Startup" /sc ONLOGON /tr "C:\Windows\system32\Quasar\User Application Data.exe" /rl HIGHEST /f
                    7⤵
                    • Scheduled Task/Job: Scheduled Task
                    PID:2168

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\VMiJN5uAFyTN.bat

        Filesize

        211B

        MD5

        85049ad6adde1ed63aa0f8066379c379

        SHA1

        89cc522ada86bc743825453c4eb40e63ba90a571

        SHA256

        bc6b97efc9c39268e78ce1e666a2f0f2d6a40208dca6d8b2df78e36edad85629

        SHA512

        c53d8a9d24595e61884a72420e283bc7092ad457232a5c4948326a86a801b2c1f212f7bfd4f9fd70f9b15f7dc585b978d8c896e06d7320d591a1e545e58399c2

      • C:\Users\Admin\AppData\Local\Temp\ayhSlgdLigbu.bat

        Filesize

        211B

        MD5

        2f7f371a0f76d70604aebcc02c41c21f

        SHA1

        1b72030e74fb908998f5ce5ca3a9725f267d4197

        SHA256

        b3fe71c6ade97da37fa23941ee3aa59cc820b53ce0077d75bdcff43212ab6543

        SHA512

        8fd63a5229a60b7b14b4092f26253257ee59a273b146ee3ff3e8c04cbfdb8c3de590825792527ee2195cf6fa6708b5ddb4fed4d63a439a3689d7e402def758be

      • C:\Windows\System32\Quasar\User Application Data.exe

        Filesize

        3.1MB

        MD5

        f611f4dd12e51ca7a946f308ebd5e04c

        SHA1

        2f7d049ec2b3ae6a8113b499d92ebc117eed890c

        SHA256

        d0ff0914a4014573716701a665b7950e49594452a6a7418a049553f8c7c1be73

        SHA512

        7057884406612bff108f1e315efacf83a99f1ec725b4496e737a57938b67edf5f23476b8f99395ec9f8ba355a68779fd5a2668b9caf0ca32b8862529eb413b83

      • memory/1060-35-0x0000000000130000-0x0000000000454000-memory.dmp

        Filesize

        3.1MB

      • memory/2320-24-0x00000000011A0000-0x00000000014C4000-memory.dmp

        Filesize

        3.1MB

      • memory/2744-0-0x000007FEF5AF3000-0x000007FEF5AF4000-memory.dmp

        Filesize

        4KB

      • memory/2744-8-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2744-2-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2744-1-0x0000000001160000-0x0000000001484000-memory.dmp

        Filesize

        3.1MB

      • memory/2804-10-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2804-9-0x0000000000C40000-0x0000000000F64000-memory.dmp

        Filesize

        3.1MB

      • memory/2804-11-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2804-12-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB

      • memory/2804-21-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp

        Filesize

        9.9MB