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Overview

overview

10

Static

static

10

Chrome Update.exe

windows10-ltsc 2021-x64

Analysis

  • max time kernel
    6s
  • max time network
    7s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    05/01/2025, 13:15

Sharing

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Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    Chrome Update.exe

  • Size

    111KB

  • MD5

    5dce69d8563e7d4a8f82e5be8b2f1a62

  • SHA1

    1458edbb836f33749682b557ab8095afd3bcc0cf

  • SHA256

    ad14b62650cdbe1118aa5a601682b4d8bea1a432db985fb3e96de1c9fc1e5e1c

  • SHA512

    e3845e4ab3e0f6df8075850c0c8a4c97caaf71d1bdc969d82749f3a567818d854fb4bcce9f75693eb8cd8e0280334a7c2f0da81e6f5756ca8e1cff7e55ce474f

  • SSDEEP

    1536:7+bQeCwEXM91qQIwiG39Wr1m8ndbhHqI6JQWqzCrAZuulvsp:Cb1ClXbG30ro8dbZqHJQWqzCrAZuu+p

Score
10/10
toxiceyediscoveryrattrojan

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot7742822790:AAHkizf3bilCkIqp8NNVcbWObKSVKo8Xifo/sendMessage?chat_id=7053620590

Signatures

  • ToxicEye

    ToxicEye is a trojan written in C#.

    rattrojantoxiceye
  • Toxiceye family
    toxiceye
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
    discovery
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\Chrome Update.exe
    "C:\Users\Admin\AppData\Local\Temp\Chrome Update.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1772
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp6D31.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp6D31.tmp.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\system32\tasklist.exe
        Tasklist /fi "PID eq 3276"
        3⤵
        • Enumerates processes with tasklist
        • Suspicious use of AdjustPrivilegeToken
        PID:1572
      • C:\Windows\system32\find.exe
        find ":"
        3⤵
          PID:3596
        • C:\Windows\system32\timeout.exe
          Timeout /T 1 /Nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:4352
        • C:\Users\Update\Update.exe
          "Update.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:3204
          • C:\Windows\System32\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Update\Update.exe"
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:4640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp6D31.tmp.bat
      Filesize

      191B

      MD5

      e2bb35f5e0708373d4c75e0ea7d99caa

      SHA1

      955d720d40f86e7518acb3c23051d6da68ef7b10

      SHA256

      69857dd7a4813d158fb2b34891468a928168b3b885b40725218720b994dc3333

      SHA512

      761b0c2251d98acf6d05ac8672c04bebc84ad3a60f434eaa756d8888b4824070814cc1e2851d368965ba21ae63dca06eac11dd53665a611e94f198e3ec77b91e

      Download Submit

    • C:\Users\Update\Update.exe
      Filesize

      111KB

      MD5

      5dce69d8563e7d4a8f82e5be8b2f1a62

      SHA1

      1458edbb836f33749682b557ab8095afd3bcc0cf

      SHA256

      ad14b62650cdbe1118aa5a601682b4d8bea1a432db985fb3e96de1c9fc1e5e1c

      SHA512

      e3845e4ab3e0f6df8075850c0c8a4c97caaf71d1bdc969d82749f3a567818d854fb4bcce9f75693eb8cd8e0280334a7c2f0da81e6f5756ca8e1cff7e55ce474f

      Download Submit

    • memory/3276-0-0x00007FFEB3523000-0x00007FFEB3525000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3276-1-0x000001A6DE5A0000-0x000001A6DE5C2000-memory.dmp

      Filesize

      136KB

      Download

    • memory/3276-2-0x00007FFEB3520000-0x00007FFEB3FE2000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3276-5-0x00007FFEB3520000-0x00007FFEB3FE2000-memory.dmp

      Filesize

      10.8MB

      Download