Analysis

  • max time kernel
    85s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-03-2024 02:59

General

  • Target

    TelegramRAT.exe

  • Size

    143KB

  • MD5

    c19a5df467e2b60b230ebcf5045a3318

  • SHA1

    a0772479a4acdc3ed21ae103adc22594fb4630f7

  • SHA256

    03493eea453e28386671f1c458cd5956e41c988e95ea9df371c68ea6b92d1fec

  • SHA512

    ad82cf0fa1cb1151161e7bbecc147a3bf959cd3fc9bd25a538c7e805d2885bb82e5e71f6454e7a6fcdd5468fc8538e684a163a78f3e11d594c7fe64c41578440

  • SSDEEP

    3072:IKoQM7ZNlgOzv0zonwLhMzIf5HOHWHBAF0rkFAbA+UBQW4VCrAZ51Gdm:127ZNlgWFWHmO4FAbt1K

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot7040511851:AAEjBKSxADGWlNtLxaKpotGtf53NUQ1UgAo/sendMessage?chat_id=6226815698

Signatures

  • Contains code to disable Windows Defender 2 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • ToxicEye

    ToxicEye is a trojan written in C#.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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\TelegramRAT.exe
    "C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4976
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2036
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp6E2B.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp6E2B.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 4976"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:3412
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:2612
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:3816
        • C:\Users\CyberEye\rat.exe
          "rat.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:220
          • C:\Windows\System32\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"
            4⤵
            • Creates scheduled task(s)
            PID:4456

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6E2B.tmp.bat

      Filesize

      188B

      MD5

      0c10abf6a996eb38921b24bd539d3c15

      SHA1

      a8be39850d860dfbe355f90239aaa2e103ff1e62

      SHA256

      c3daa502e0b2e0643a1cad374dd84d7adfe885cdbe2300ae5aae342f41a29cb9

      SHA512

      0220d63af9f5bc9074d97ed0c9e38d49b5228a1ecef616bf67b5ba2a85a73e1cd16b932963fdcd5ceca92a10c5b9013cd8ec02d64be7d0e7c7e358226d352fb6

    • C:\Users\CyberEye\rat.exe

      Filesize

      143KB

      MD5

      c19a5df467e2b60b230ebcf5045a3318

      SHA1

      a0772479a4acdc3ed21ae103adc22594fb4630f7

      SHA256

      03493eea453e28386671f1c458cd5956e41c988e95ea9df371c68ea6b92d1fec

      SHA512

      ad82cf0fa1cb1151161e7bbecc147a3bf959cd3fc9bd25a538c7e805d2885bb82e5e71f6454e7a6fcdd5468fc8538e684a163a78f3e11d594c7fe64c41578440

    • memory/220-15-0x000001B553A00000-0x000001B553A0A000-memory.dmp

      Filesize

      40KB

    • memory/220-14-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/220-47-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/220-46-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/220-11-0x00007FFFA11D0000-0x00007FFFA1C91000-memory.dmp

      Filesize

      10.8MB

    • memory/220-12-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/220-45-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/220-44-0x00007FFFA11D0000-0x00007FFFA1C91000-memory.dmp

      Filesize

      10.8MB

    • memory/220-17-0x000001B5539C0000-0x000001B5539D2000-memory.dmp

      Filesize

      72KB

    • memory/220-20-0x000001B553860000-0x000001B553870000-memory.dmp

      Filesize

      64KB

    • memory/4976-6-0x00007FFFA11D0000-0x00007FFFA1C91000-memory.dmp

      Filesize

      10.8MB

    • memory/4976-0-0x000001CF350B0000-0x000001CF350DA000-memory.dmp

      Filesize

      168KB

    • memory/4976-1-0x00007FFFA11D0000-0x00007FFFA1C91000-memory.dmp

      Filesize

      10.8MB

    • memory/4976-2-0x000001CF36DD0000-0x000001CF36DE0000-memory.dmp

      Filesize

      64KB