Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 12:07

General

  • Target

    854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe

  • Size

    3.1MB

  • MD5

    051bfba0c640694d241f6b3621e241b6

  • SHA1

    a5269b7485203914af50cb932d952c10440878c9

  • SHA256

    854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09

  • SHA512

    bdfea5dfca423c4d66de1c9f435a1c0403b8615a0b7627fff665876fa2da48e8914cc2961ca9e66b7d32d2bc4004354e5e932297a479fcc90d495327d14577dc

  • SSDEEP

    49152:AvKgo2QSaNpzyPllgamb0CZof/JDj5RbR4jRoGdMOAuTHHB72eh2NT:Avjo2QSaNpzyPllgamYCZof/JDj5wFc

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

2464c7bf-a165-4397-85fe-def5290750b0

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 2 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 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 33 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\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe
    "C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2160
    • 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:2612
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\bm98KahXWxhT.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2344
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1052
        • C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe
          "C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe"
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:888
          • 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
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1340
          • C:\Windows\system32\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\s3OEJs7Dovm2.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1884
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:2212
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:2376
              • C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe
                "C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe"
                5⤵
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:1760
                • 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
                  6⤵
                  • Scheduled Task/Job: Scheduled Task
                  PID:2500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\bm98KahXWxhT.bat

        Filesize

        261B

        MD5

        893494ee6651dc30fd9a6d80b3bde3b0

        SHA1

        4223e878b98fa0b592947ef861897d7cfd54b700

        SHA256

        5892ee64f6c9254d3cdd0c5a63803e081b5263c93f486631d527c8a6793e025d

        SHA512

        8d53377bd050dba2f851ef812ffaf64395e642ee3ee5176129b40c771622a59f8ad1d747a4938649b68c51fd98e106409467d0a0e1361db050c95d3601136d53

      • C:\Users\Admin\AppData\Local\Temp\s3OEJs7Dovm2.bat

        Filesize

        261B

        MD5

        db3709cb7f0ef5152a0d7454ff8587fe

        SHA1

        43dd01640091892986c83fad529acc81007208c4

        SHA256

        eb01d7555dc29c1286dd391d1d97e9c99006c53c3c51a463e902c6041620dc7f

        SHA512

        d6f4f9a6ebfe2e399055a887c7c2f7c8171d6bc7e7ec21a678393f62d64e67bd9665f8e4da0ee298e1ea874736241d3d56186a1c98cd984d30416ffc6df2c26d

      • memory/1760-24-0x0000000000CE0000-0x0000000001004000-memory.dmp

        Filesize

        3.1MB

      • memory/2160-0-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

        Filesize

        4KB

      • memory/2160-1-0x0000000000C10000-0x0000000000F34000-memory.dmp

        Filesize

        3.1MB

      • memory/2160-2-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

        Filesize

        9.9MB

      • memory/2160-3-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

        Filesize

        4KB

      • memory/2160-4-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

        Filesize

        9.9MB

      • memory/2160-13-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

        Filesize

        9.9MB