Analysis

  • max time kernel
    142s
  • max time network
    154s
  • 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, 06:20

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 14 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:4164
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:3212
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        2⤵
          PID:4500
        • 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:824

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/824-1221-0x0000000000400000-0x0000000000724000-memory.dmp

              Filesize

              3.1MB

            • memory/824-1222-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB

            • memory/824-1223-0x0000000005920000-0x0000000005930000-memory.dmp

              Filesize

              64KB

            • memory/824-1225-0x0000000007020000-0x0000000007638000-memory.dmp

              Filesize

              6.1MB

            • memory/824-1226-0x0000000006BB0000-0x0000000006C00000-memory.dmp

              Filesize

              320KB

            • memory/824-1234-0x0000000005920000-0x0000000005930000-memory.dmp

              Filesize

              64KB

            • memory/824-1233-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB

            • memory/824-1232-0x0000000007EF0000-0x0000000007F56000-memory.dmp

              Filesize

              408KB

            • memory/824-1231-0x0000000007E40000-0x0000000007E7C000-memory.dmp

              Filesize

              240KB

            • memory/824-1230-0x0000000007DE0000-0x0000000007DF2000-memory.dmp

              Filesize

              72KB

            • memory/824-1227-0x0000000006E10000-0x0000000006EC2000-memory.dmp

              Filesize

              712KB

            • memory/4164-168-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-180-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-142-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-144-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-146-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-148-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-150-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-152-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-154-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-156-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-158-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-160-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-162-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-164-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-166-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-139-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-170-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-172-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-174-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-176-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-178-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-140-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-182-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-184-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-186-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-188-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-190-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-194-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-192-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-196-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-198-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-200-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-202-0x0000000007020000-0x00000000071F4000-memory.dmp

              Filesize

              1.8MB

            • memory/4164-694-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB

            • memory/4164-773-0x0000000005900000-0x0000000005910000-memory.dmp

              Filesize

              64KB

            • memory/4164-138-0x0000000005970000-0x000000000597A000-memory.dmp

              Filesize

              40KB

            • memory/4164-137-0x0000000005900000-0x0000000005910000-memory.dmp

              Filesize

              64KB

            • memory/4164-136-0x0000000005990000-0x0000000005A22000-memory.dmp

              Filesize

              584KB

            • memory/4164-135-0x0000000006000000-0x00000000065A4000-memory.dmp

              Filesize

              5.6MB

            • memory/4164-134-0x0000000000D90000-0x0000000000F7E000-memory.dmp

              Filesize

              1.9MB

            • memory/4164-133-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB

            • memory/4164-1217-0x0000000005C10000-0x0000000005C11000-memory.dmp

              Filesize

              4KB

            • memory/4164-1224-0x0000000074B60000-0x0000000075310000-memory.dmp

              Filesize

              7.7MB