Analysis

  • max time kernel
    148s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 12:04

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 3 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:2256
    • 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:2716
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\5cZRDXu19SdL.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2900
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:2596
        • 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:2200
          • 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:1576
          • C:\Windows\system32\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\zXfoeIBMb8ak.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1168
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:2208
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:2420
              • 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:2220
                • 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:2580

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\5cZRDXu19SdL.bat

        Filesize

        261B

        MD5

        4e1a3c2f475c53259fea181dfcf96464

        SHA1

        8d25f31f9e78d30b114a74ec04d87dc65a07999c

        SHA256

        2d7da8cc1f84e607b97934662a481ea579449cd25c809b0e83a726d06a651bcf

        SHA512

        e9b71bca8abd0c7fd4a83aa58038065e3fda31535d702245ea376886562abfcc021fba89684d30c4afbb22e86aa395d60089cd8f58a4c9820be337046d4cad61

      • C:\Users\Admin\AppData\Local\Temp\zXfoeIBMb8ak.bat

        Filesize

        261B

        MD5

        87673a8f968fbe56dbbb0a532ca4cd03

        SHA1

        fd31db082480da904a5177337445f464758b0ae3

        SHA256

        c4df8b92a8db8972f8490aea91e423031f259ebc11c8763dea355e2796e0215f

        SHA512

        0a099bc57ec446fa1d397d136360d0bc3fa49ee9eaa6275dac8f73b4b7d4f33ae1e0ce39cbf4cd9beada9397b7eeaa71da9327885e95be88c4e5ef27e0a87031

      • memory/2200-15-0x00000000013C0000-0x00000000016E4000-memory.dmp

        Filesize

        3.1MB

      • memory/2220-25-0x0000000000070000-0x0000000000394000-memory.dmp

        Filesize

        3.1MB

      • memory/2256-0-0x000007FEF5163000-0x000007FEF5164000-memory.dmp

        Filesize

        4KB

      • memory/2256-1-0x00000000011D0000-0x00000000014F4000-memory.dmp

        Filesize

        3.1MB

      • memory/2256-2-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

        Filesize

        9.9MB

      • memory/2256-3-0x000007FEF5163000-0x000007FEF5164000-memory.dmp

        Filesize

        4KB

      • memory/2256-4-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

        Filesize

        9.9MB

      • memory/2256-14-0x000007FEF5160000-0x000007FEF5B4C000-memory.dmp

        Filesize

        9.9MB