Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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 01:20

General

  • Target

    file.exe

  • Size

    147KB

  • MD5

    27d11d6ddc6f80eed3b4fbd411b82014

  • SHA1

    2c5f9eb7c3f8bf0b9cb9f05bc192ab37cb9384d8

  • SHA256

    d56b2acb792a0e9e636c40190064525352293bbabd04d31a89978c0c167f50aa

  • SHA512

    e4cda09a174769cfbb665c51410bbe9d40a0896148ad600bfd78195f90d793e96b0a2d149c709491af60381533c3c91b816f04875433849e22e1eda4d9484eff

  • SSDEEP

    3072:lVHeqbQCpPCJc2L/BDLzEPzKcOP9aWvqXp087OsWVOQ28EwDx30kAmQiL:lVH3u7xsPzKhP9NSXJ7OLwV8EwVXQ

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 3 IoCs

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

  • Executes dropped EXE 2 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe
      "C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5008
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:4504
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5767.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp5767.tmp.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4584
        • C:\Windows\system32\tasklist.exe
          Tasklist /fi "PID eq 5008"
          4⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:1952
        • C:\Windows\system32\find.exe
          find ":"
          4⤵
            PID:3684
          • C:\Windows\system32\timeout.exe
            Timeout /T 1 /Nobreak
            4⤵
            • Delays execution with timeout.exe
            PID:4676
          • C:\Users\CyberEye\rat.exe
            "rat.exe"
            4⤵
            • Checks computer location settings
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1188
            • 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"
              5⤵
              • Creates scheduled task(s)
              PID:4560

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\TelegramRAT.exe

      Filesize

      143KB

      MD5

      74f22ec8451a5d788ee312e2b637519c

      SHA1

      a7bd09f6f3d7f9b3ec33b5d4c2787223459d1fc0

      SHA256

      48614dc3fd49968db9c35b840a6609f397f2f1813daa7c56b659036edf82f2e2

      SHA512

      5b356e4811c58bcede2c3a5a0614e40049ef2a68c63c76fa78f612441d1ca9e1200f7a0544ffbca66ab4e0668fd0ec196bf0cdbff60ff7097c5f476b1675492b

    • C:\Users\Admin\AppData\Local\Temp\tmp5767.tmp.bat

      Filesize

      188B

      MD5

      6a93845937599f23fa5c02fcfce7e327

      SHA1

      e9e0111aa4fb1243e0bd930623a4e8d027690004

      SHA256

      10bbefcb0365ebd2704177894f0c0ab3b68e4a348e981a435a77e5fc7bb7b2c2

      SHA512

      a0d6afed6eee0361e98c3ef86b2a2fe14fbef349d9d26150f28a40379993bdc77d5cc9ae171b313b45b2cb42d2d3a65c3ab930cdeb6d535b760ba8b70d03e93a

    • memory/1188-22-0x00007FFA4CF60000-0x00007FFA4DA21000-memory.dmp

      Filesize

      10.8MB

    • memory/1188-23-0x000002372FA60000-0x000002372FA70000-memory.dmp

      Filesize

      64KB

    • memory/1188-25-0x0000023749FF0000-0x0000023749FFA000-memory.dmp

      Filesize

      40KB

    • memory/1188-27-0x000002374A220000-0x000002374A232000-memory.dmp

      Filesize

      72KB

    • memory/1188-53-0x00007FFA4CF60000-0x00007FFA4DA21000-memory.dmp

      Filesize

      10.8MB

    • memory/1188-54-0x000002372FA60000-0x000002372FA70000-memory.dmp

      Filesize

      64KB

    • memory/5008-11-0x000002C22F9C0000-0x000002C22F9EA000-memory.dmp

      Filesize

      168KB

    • memory/5008-12-0x00007FFA4D5C0000-0x00007FFA4E081000-memory.dmp

      Filesize

      10.8MB

    • memory/5008-13-0x000002C24A130000-0x000002C24A140000-memory.dmp

      Filesize

      64KB

    • memory/5008-17-0x00007FFA4D5C0000-0x00007FFA4E081000-memory.dmp

      Filesize

      10.8MB