Analysis

  • max time kernel
    97s
  • max time network
    102s
  • 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 02:50

General

  • Target

    TelegramRAT.exe

  • Size

    142KB

  • MD5

    6d8b4e6092594fbdbe2c388270a5e005

  • SHA1

    7c7b30444c1d6e6964c9ff8c2b508f63ec0dc257

  • SHA256

    ba8d40a2a20d44a25041fb635bc86e596a41d42d695614f0ff01c0529e820fec

  • SHA512

    a932e9bf57eda27f1274cdfe83e772501a809f59a9df228fbfce207c8f409998bea3a92436ee3ba9c936fed30593faa5f61fc0d16e21c9f1963b73cc9d66bf88

  • SSDEEP

    3072:2KhQM7EchJ+L7y7lU+QHlYIYLfbgb1ZiPrk3I0rbAe0hQW4VCrAZ71+i:D17EchJ+L2m1ZG4XbN1

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 58 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:2268
    • 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:4208
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4768
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 2268"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:4132
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:1576
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:2572
        • 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:2860
          • 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:3364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp950C.tmp.bat

      Filesize

      188B

      MD5

      d249d260c313820a9c4dc347ee0604fc

      SHA1

      3824b12edc3048c77a6ba88135356be1def65fed

      SHA256

      e6bf510747568f46055648b49316c9959e3a8a4e9804ea0ba24a14b874cddb77

      SHA512

      8fa13a7d23eb678925811d408f6eb627623a4413f1ab6c5334f74e4b42dac05e8a5097243a448d0cf508cbfe29fe28639101ad46354200466f04d61eb5c218bf

    • C:\Users\CyberEye\rat.exe

      Filesize

      142KB

      MD5

      6d8b4e6092594fbdbe2c388270a5e005

      SHA1

      7c7b30444c1d6e6964c9ff8c2b508f63ec0dc257

      SHA256

      ba8d40a2a20d44a25041fb635bc86e596a41d42d695614f0ff01c0529e820fec

      SHA512

      a932e9bf57eda27f1274cdfe83e772501a809f59a9df228fbfce207c8f409998bea3a92436ee3ba9c936fed30593faa5f61fc0d16e21c9f1963b73cc9d66bf88

    • memory/2268-0-0x00000217A1E30000-0x00000217A1E5A000-memory.dmp

      Filesize

      168KB

    • memory/2268-1-0x00007FF8298B0000-0x00007FF82A371000-memory.dmp

      Filesize

      10.8MB

    • memory/2268-2-0x00000217BC660000-0x00000217BC670000-memory.dmp

      Filesize

      64KB

    • memory/2268-7-0x00007FF8298B0000-0x00007FF82A371000-memory.dmp

      Filesize

      10.8MB

    • memory/2860-14-0x000001D74C540000-0x000001D74C54A000-memory.dmp

      Filesize

      40KB

    • memory/2860-12-0x000001D74BF20000-0x000001D74BF30000-memory.dmp

      Filesize

      64KB

    • memory/2860-11-0x00007FF829580000-0x00007FF82A041000-memory.dmp

      Filesize

      10.8MB

    • memory/2860-16-0x000001D74C550000-0x000001D74C562000-memory.dmp

      Filesize

      72KB

    • memory/2860-37-0x000001D74D3C0000-0x000001D74D46A000-memory.dmp

      Filesize

      680KB

    • memory/2860-38-0x000001D74D510000-0x000001D74D586000-memory.dmp

      Filesize

      472KB

    • memory/2860-44-0x00007FF829580000-0x00007FF82A041000-memory.dmp

      Filesize

      10.8MB

    • memory/2860-45-0x000001D74BF20000-0x000001D74BF30000-memory.dmp

      Filesize

      64KB

    • memory/2860-46-0x000001D74BF20000-0x000001D74BF30000-memory.dmp

      Filesize

      64KB

    • memory/2860-47-0x000001D74BF20000-0x000001D74BF30000-memory.dmp

      Filesize

      64KB