Analysis

  • max time kernel
    123s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/08/2023, 06:00

General

  • Target

    myproject.exe

  • Size

    1.9MB

  • MD5

    5d8857dfbf92c11e3d816e146a90574b

  • SHA1

    3bb590eba78454a49a81c1cd93b6111119defde1

  • SHA256

    9d3b91e313cc1183cbc94c36a1aa0b50e5a2e2178293240e935d5626c4994db2

  • SHA512

    c13dded3e6bc325e56db61e10cca634ca3e1ca0d04bb37cb3847530cd4d0b154b6dbc7bab12a7254590520f769f2c986ab7dadc65864e877f1932b05d342897a

  • SSDEEP

    49152:yq8O+4JhekmDCjyrZ9e1TsZbdJmkPzewFaxQXotaL:yqT+4JhvmDCurZ8FUlyPxQXota

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

CLppso

C2

5.249.163.32:4782

Mutex

edaac5e2-2388-4258-a93c-28e31ebe3f2a

Attributes
  • encryption_key

    124612CCBEAD0D1753510D04E4F680D28EF88CDD

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\myproject.exe
    "C:\Users\Admin\AppData\Local\Temp\myproject.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:3344
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1208-1223-0x0000000074900000-0x00000000750B0000-memory.dmp

            Filesize

            7.7MB

          • memory/1208-1222-0x0000000000400000-0x0000000000724000-memory.dmp

            Filesize

            3.1MB

          • memory/1208-1225-0x0000000004FF0000-0x0000000005000000-memory.dmp

            Filesize

            64KB

          • memory/1208-1226-0x00000000069D0000-0x0000000006FE8000-memory.dmp

            Filesize

            6.1MB

          • memory/1208-1227-0x0000000006560000-0x00000000065B0000-memory.dmp

            Filesize

            320KB

          • memory/1208-1235-0x0000000004FF0000-0x0000000005000000-memory.dmp

            Filesize

            64KB

          • memory/1208-1234-0x0000000074900000-0x00000000750B0000-memory.dmp

            Filesize

            7.7MB

          • memory/1208-1233-0x00000000078A0000-0x0000000007906000-memory.dmp

            Filesize

            408KB

          • memory/1208-1232-0x00000000077F0000-0x000000000782C000-memory.dmp

            Filesize

            240KB

          • memory/1208-1231-0x0000000007790000-0x00000000077A2000-memory.dmp

            Filesize

            72KB

          • memory/1208-1228-0x00000000067C0000-0x0000000006872000-memory.dmp

            Filesize

            712KB

          • memory/3080-169-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-181-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-143-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-145-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-147-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-149-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-151-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-153-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-155-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-157-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-159-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-161-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-163-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-165-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-167-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-141-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-171-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-173-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-175-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-177-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-179-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-140-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-183-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-185-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-187-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-189-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-191-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-193-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-195-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-197-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-199-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-201-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-203-0x0000000007190000-0x0000000007364000-memory.dmp

            Filesize

            1.8MB

          • memory/3080-722-0x0000000074900000-0x00000000750B0000-memory.dmp

            Filesize

            7.7MB

          • memory/3080-139-0x0000000005B20000-0x0000000005B2A000-memory.dmp

            Filesize

            40KB

          • memory/3080-138-0x0000000005B60000-0x0000000005B70000-memory.dmp

            Filesize

            64KB

          • memory/3080-137-0x0000000005BA0000-0x0000000005C32000-memory.dmp

            Filesize

            584KB

          • memory/3080-136-0x0000000006150000-0x00000000066F4000-memory.dmp

            Filesize

            5.6MB

          • memory/3080-135-0x0000000000F50000-0x000000000113E000-memory.dmp

            Filesize

            1.9MB

          • memory/3080-134-0x0000000074900000-0x00000000750B0000-memory.dmp

            Filesize

            7.7MB

          • memory/3080-800-0x0000000005B60000-0x0000000005B70000-memory.dmp

            Filesize

            64KB

          • memory/3080-1218-0x0000000005F40000-0x0000000005F41000-memory.dmp

            Filesize

            4KB

          • memory/3080-1224-0x0000000074900000-0x00000000750B0000-memory.dmp

            Filesize

            7.7MB