Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 22 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⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:344
    • 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:1868
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2m5hotXUC0ep.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2964
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:4540
        • C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe
          "C:\Users\Admin\AppData\Local\Temp\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe"
          3⤵
          • Checks computer location settings
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3256
          • 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:2916
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\C1DF27rk34Kn.bat" "
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3704
            • C:\Windows\system32\chcp.com
              chcp 65001
              5⤵
                PID:4496
              • C:\Windows\system32\PING.EXE
                ping -n 10 localhost
                5⤵
                • System Network Configuration Discovery: Internet Connection Discovery
                • Runs ping.exe
                PID:4368
              • 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:4272
                • 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:2340

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\854fc659414fc88605337694eb6b6f4f177389c9cbb69ca0b0e705f555ebbb09.exe.log

        Filesize

        2KB

        MD5

        8f0271a63446aef01cf2bfc7b7c7976b

        SHA1

        b70dad968e1dda14b55ad361b7fd4ef9ab6c06d7

        SHA256

        da740d78ae00b72cb3710d1a1256dc6431550965d20afaa65e5d5860a4748e8c

        SHA512

        78a403c69f1284b7dd41527019f3eede3512a5e4d439d846eca83557b741ca37bcf56c412f3e577b9dd4cfa5a6d6210961215f14cb271b143f6eb94f69389cf5

      • C:\Users\Admin\AppData\Local\Temp\2m5hotXUC0ep.bat

        Filesize

        261B

        MD5

        d631caf98cb6961828d11e3b0b9d3391

        SHA1

        89e3727503359644b16d3686d2c0c82fd0462b6b

        SHA256

        0a79ab522e5b68a1064e7897acc4cde1f2b2500a57c2eabeb14fb532f085afee

        SHA512

        670346f6625b5338bd3485b0b3d193b2297a2f4dee38540772c786bf2f471da6a5de0035b7ed51926c549198b01f4836a6ede2c04406ef7400999ba65e3980b2

      • C:\Users\Admin\AppData\Local\Temp\C1DF27rk34Kn.bat

        Filesize

        261B

        MD5

        1f4412731e3daa6f6fd2d545c535305a

        SHA1

        6e96a0bd70fed2c22b26fba2d888a8a153ab2446

        SHA256

        54c984654129fa6976bd33267a15d0722fa0f4cb9bc70b9d340a05991f8aac69

        SHA512

        05965f83e990021ffbfe1e477468fd1ee9c3d5f722ea5ff8971c46b1eb39f3f5a74d7c364d3a58bd5f14b371e5e5137b976c1c20e54e36762ef34a73582f4dca

      • memory/344-0-0x00007FFBA8E03000-0x00007FFBA8E05000-memory.dmp

        Filesize

        8KB

      • memory/344-1-0x00000000005D0000-0x00000000008F4000-memory.dmp

        Filesize

        3.1MB

      • memory/344-2-0x00007FFBA8E00000-0x00007FFBA98C1000-memory.dmp

        Filesize

        10.8MB

      • memory/344-3-0x000000001D4D0000-0x000000001D520000-memory.dmp

        Filesize

        320KB

      • memory/344-4-0x000000001D5E0000-0x000000001D692000-memory.dmp

        Filesize

        712KB

      • memory/344-5-0x00007FFBA8E03000-0x00007FFBA8E05000-memory.dmp

        Filesize

        8KB

      • memory/344-6-0x00007FFBA8E00000-0x00007FFBA98C1000-memory.dmp

        Filesize

        10.8MB

      • memory/344-12-0x00007FFBA8E00000-0x00007FFBA98C1000-memory.dmp

        Filesize

        10.8MB