Analysis

  • max time kernel
    157s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 23:10

General

  • Target

    b635d774f728b3307a344310255dc6a7a08cc5f848e2118d57bd70dbb840f327.exe

  • Size

    114KB

  • MD5

    bdfbfce31f405741b0117398654af64c

  • SHA1

    3f4241a546d5d062e571ecfb31aa657c89a90fd0

  • SHA256

    b635d774f728b3307a344310255dc6a7a08cc5f848e2118d57bd70dbb840f327

  • SHA512

    27108c63a3f6e5f2d323cfecd3146613f1569af397ac26042e86bf71ab5ff218730245c7602a80f9f957e047d2525a1198d1be145483b881a0e170cf98cf52d6

  • SSDEEP

    3072:uZ8w8JDKsEyvZivfJWF2Hs4e1r6vvHS2CNSp2V3dsxXeR9P0f:m84sEycvfJWF2Hs4e1OyxUaNIOOf

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

124.248.66.140:4449

Mutex

hcryvzljbqgbuyprudy

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b635d774f728b3307a344310255dc6a7a08cc5f848e2118d57bd70dbb840f327.exe
    "C:\Users\Admin\AppData\Local\Temp\b635d774f728b3307a344310255dc6a7a08cc5f848e2118d57bd70dbb840f327.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:3944

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/3944-0-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/3944-1-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/3944-4-0x0000000002D30000-0x0000000002D4C000-memory.dmp

          Filesize

          112KB

        • memory/3944-6-0x00000000735F0000-0x0000000073DA0000-memory.dmp

          Filesize

          7.7MB

        • memory/3944-8-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-9-0x0000000005350000-0x0000000005368000-memory.dmp

          Filesize

          96KB

        • memory/3944-10-0x00000000735F0000-0x0000000073DA0000-memory.dmp

          Filesize

          7.7MB

        • memory/3944-11-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-13-0x00000000053A0000-0x0000000005944000-memory.dmp

          Filesize

          5.6MB

        • memory/3944-15-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-16-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-18-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-20-0x0000000077191000-0x0000000077192000-memory.dmp

          Filesize

          4KB

        • memory/3944-21-0x0000000005F50000-0x0000000005FE2000-memory.dmp

          Filesize

          584KB

        • memory/3944-22-0x0000000006080000-0x000000000608A000-memory.dmp

          Filesize

          40KB

        • memory/3944-23-0x0000000006410000-0x00000000064AC000-memory.dmp

          Filesize

          624KB

        • memory/3944-24-0x00000000064D0000-0x0000000006536000-memory.dmp

          Filesize

          408KB

        • memory/3944-29-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB

        • memory/3944-32-0x0000000005340000-0x0000000005350000-memory.dmp

          Filesize

          64KB