Analysis

  • max time kernel
    47s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/07/2023, 02:54

General

  • Target
    ApolloGTA.exe
  • Size 327KB
  • Sample230731-dd2eqadc6y
  • SHA256 fd1bc3d660b9170202057aeb0d425600fb58b8af70e8117648f3cd619025fcfe
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • asyncrat

Botnet
  • Default

C2
  • 127.0.0.1:3232

  • 104.194.156.4:3232

Mutex
  • שתΗ8贼qKXΑ弗比9קwRzHHD7

Attributes
  • delay

    1

  • install

    true

  • install_file

    windef.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Async RAT payload 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 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\ApolloGTA.exe
    "C:\Users\Admin\AppData\Local\Temp\ApolloGTA.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5092
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windef" /tr '"C:\Users\Admin\AppData\Roaming\windef.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4808
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "windef" /tr '"C:\Users\Admin\AppData\Roaming\windef.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2292
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B96.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4816
      • C:\Users\Admin\AppData\Roaming\windef.exe
        "C:\Users\Admin\AppData\Roaming\windef.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2096

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        tmp8B96.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp8B96.tmp.bat
        • Size 150B
        • SHA256 dffe58c8c7bd764f172d34670e4ef4c41b41b310dae467a193a28c01559f2fc8
        • MD5 SHA1 SHA512

        windef.exe

        • Path C:\Users\Admin\AppData\Roaming\windef.exe
        • Size 327KB
        • SHA256 fd1bc3d660b9170202057aeb0d425600fb58b8af70e8117648f3cd619025fcfe
        • MD5 SHA1 SHA512 SSDEEP

        windef.exe

        • Path C:\Users\Admin\AppData\Roaming\windef.exe
        • Size 327KB
        • SHA256 fd1bc3d660b9170202057aeb0d425600fb58b8af70e8117648f3cd619025fcfe
        • MD5 SHA1 SHA512 SSDEEP

        memory/2096-151-0x000000001B200000-0x000000001B210000-memory.dmp

        memory/2096-150-0x00007FF879D70000-0x00007FF87A831000-memory.dmp

        memory/2096-149-0x000000001B200000-0x000000001B210000-memory.dmp

        memory/2096-148-0x00007FF879D70000-0x00007FF87A831000-memory.dmp

        memory/5092-140-0x00007FF8983D0000-0x00007FF8985C5000-memory.dmp

        memory/5092-143-0x00007FF8983D0000-0x00007FF8985C5000-memory.dmp

        memory/5092-142-0x00007FF87A0C0000-0x00007FF87AB81000-memory.dmp

        memory/5092-141-0x00007FF883780000-0x00007FF883799000-memory.dmp

        memory/5092-133-0x0000000000600000-0x0000000000658000-memory.dmp

        memory/5092-135-0x000000001B1B0000-0x000000001B1C0000-memory.dmp

        memory/5092-134-0x00007FF87A0C0000-0x00007FF87AB81000-memory.dmp