Analysis

  • max time kernel
    10s
  • max time network
    71s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2023 09:11

General

  • Target

    fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94.exe

  • Size

    105KB

  • MD5

    da9cc4e4135e5ab525f11c3b3f664096

  • SHA1

    4afbc8b795da9f9b067c7df51200c360853aac47

  • SHA256

    fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94

  • SHA512

    cf6f782ebded8ae27119b606c3edc972f063c49e444cfab4d78ed356bc2f5089abecc93cc0d0d3d3356f01237857b7bf21d262fc5899867e69bca193d8894676

  • SSDEEP

    3072:leIL1GcZLw7PUq7QLjPscKO7b1UQWPUCrYZod5:rFw7PUq7Q8C7bf

Score
10/10

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot1540181760:AAEnIs2M31DEIo0eweKbO3grGRLd0kFkByk/sendMessage?chat_id=1314803697

Signatures

  • ToxicEye

    ToxicEye is a trojan written in C#.

  • Checks computer location settings 2 TTPs 2 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 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94.exe
    "C:\Users\Admin\AppData\Local\Temp\fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\ToxicEye\rat.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1460
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp7E19.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp7E19.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4216
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 636"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:732
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:3800
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:3468
        • C:\Users\ToxicEye\rat.exe
          "rat.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4776
          • C:\Windows\System32\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\ToxicEye\rat.exe"
            4⤵
            • Creates scheduled task(s)
            PID:3568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp7E19.tmp.bat

      Filesize

      240B

      MD5

      a783cf7c9195d4d071897134a942dc1c

      SHA1

      699e4c79118a97140eaa13a16302916044f003a9

      SHA256

      2fda2f6f5c7df0d6b3ea014b9b49adaf206ee332c95fbd7df7f4be09c34e4a89

      SHA512

      8199daf11d1204c6a77b2249873a46bafd66d91d4153b24a8f1dab39be06b6fff3b1be316426a796f383ef324c2305cb0719fb24057c094478761e6e7796efe1

    • C:\Users\ToxicEye\rat.exe

      Filesize

      105KB

      MD5

      da9cc4e4135e5ab525f11c3b3f664096

      SHA1

      4afbc8b795da9f9b067c7df51200c360853aac47

      SHA256

      fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94

      SHA512

      cf6f782ebded8ae27119b606c3edc972f063c49e444cfab4d78ed356bc2f5089abecc93cc0d0d3d3356f01237857b7bf21d262fc5899867e69bca193d8894676

    • C:\Users\ToxicEye\rat.exe

      Filesize

      105KB

      MD5

      da9cc4e4135e5ab525f11c3b3f664096

      SHA1

      4afbc8b795da9f9b067c7df51200c360853aac47

      SHA256

      fba0c53c2c8474675d779172a6acb413f7a81ade4f983616e08b117a55555c94

      SHA512

      cf6f782ebded8ae27119b606c3edc972f063c49e444cfab4d78ed356bc2f5089abecc93cc0d0d3d3356f01237857b7bf21d262fc5899867e69bca193d8894676

    • memory/636-0-0x0000015D78270000-0x0000015D78290000-memory.dmp

      Filesize

      128KB

    • memory/636-1-0x00007FF97C290000-0x00007FF97CD51000-memory.dmp

      Filesize

      10.8MB

    • memory/636-2-0x0000015D7AAA0000-0x0000015D7AAB0000-memory.dmp

      Filesize

      64KB

    • memory/636-6-0x00007FF97C290000-0x00007FF97CD51000-memory.dmp

      Filesize

      10.8MB

    • memory/4776-11-0x00007FF97C610000-0x00007FF97D0D1000-memory.dmp

      Filesize

      10.8MB

    • memory/4776-12-0x00000229B7580000-0x00000229B7590000-memory.dmp

      Filesize

      64KB

    • memory/4776-13-0x00000229B7580000-0x00000229B7590000-memory.dmp

      Filesize

      64KB