Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 13 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:2472
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:1624
      • 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:748

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/748-1150-0x0000000074570000-0x0000000074C5E000-memory.dmp

            Filesize

            6.9MB

          • memory/748-1154-0x0000000004BE0000-0x0000000004C20000-memory.dmp

            Filesize

            256KB

          • memory/748-1153-0x0000000074570000-0x0000000074C5E000-memory.dmp

            Filesize

            6.9MB

          • memory/748-1152-0x0000000004BE0000-0x0000000004C20000-memory.dmp

            Filesize

            256KB

          • memory/748-1151-0x0000000000400000-0x0000000000724000-memory.dmp

            Filesize

            3.1MB

          • memory/2472-96-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-102-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-62-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-64-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-66-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-68-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-70-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-72-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-74-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-76-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-78-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-80-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-82-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-84-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-86-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-88-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-90-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-100-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-94-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-54-0x0000000000C50000-0x0000000000E3E000-memory.dmp

            Filesize

            1.9MB

          • memory/2472-60-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-98-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-92-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-106-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-104-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-108-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-110-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-112-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-114-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-116-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-118-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-120-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-162-0x00000000745F0000-0x0000000074CDE000-memory.dmp

            Filesize

            6.9MB

          • memory/2472-390-0x0000000004D70000-0x0000000004DB0000-memory.dmp

            Filesize

            256KB

          • memory/2472-1135-0x0000000000430000-0x0000000000431000-memory.dmp

            Filesize

            4KB

          • memory/2472-1136-0x0000000005730000-0x0000000005884000-memory.dmp

            Filesize

            1.3MB

          • memory/2472-1137-0x00000000009D0000-0x0000000000A1C000-memory.dmp

            Filesize

            304KB

          • memory/2472-1146-0x00000000745F0000-0x0000000074CDE000-memory.dmp

            Filesize

            6.9MB

          • memory/2472-57-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-58-0x0000000005160000-0x0000000005334000-memory.dmp

            Filesize

            1.8MB

          • memory/2472-56-0x0000000005160000-0x000000000533A000-memory.dmp

            Filesize

            1.9MB

          • memory/2472-55-0x0000000004D70000-0x0000000004DB0000-memory.dmp

            Filesize

            256KB

          • memory/2472-53-0x00000000745F0000-0x0000000074CDE000-memory.dmp

            Filesize

            6.9MB