Analysis

  • max time kernel
    36s
  • max time network
    38s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2024 21:12

Errors

Reason
Machine shutdown

General

  • Target

    J9cvjahsghfAP2s.exe

  • Size

    16.3MB

  • MD5

    0392831eef744779930426841e250ec0

  • SHA1

    f9d7d82a92bdc7c8598d393edae73ca1b6ed015e

  • SHA256

    a65b1b62f767ef61e1711c0a83157c1e1d01e0c2eace65e616c837fc1e44dbe7

  • SHA512

    dbd9e9020ba51db9a71cd435894581e3f1260436cf7690783df00917bce815a2bec45c85592c16eb5aa75937c6cbcd1959f4d95de510cc3174945d3186f74b42

  • SSDEEP

    393216:914I2ZOl6M5PdlNYHeWcHXe0xE6TNJWAikay8d+Lc0xk3S1vk:b4I2bM9dlN+XsXesESJWZd+LFki1

Malware Config

Extracted

Family

toxiceye

C2

https://api.telegram.org/bot7642478923:AAEwlRnbjjNP8kHPrxLhm3a8vkSUNuUfWL0/sendMessage?chat_id=7824954161

Signatures

  • ToxicEye

    ToxicEye is a trojan written in C#.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Obfuscated Files or Information: Command Obfuscation 1 TTPs

    Adversaries may obfuscate content during command execution to impede detection.

  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 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\J9cvjahsghfAP2s.exe
    "C:\Users\Admin\AppData\Local\Temp\J9cvjahsghfAP2s.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGEAZwByACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHEAcABrACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHIAYwBkACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAG4AdABiACMAPgA="
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • 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:1656
      • 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"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3520
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpF56C.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmpF56C.tmp.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4504
        • C:\Windows\system32\tasklist.exe
          Tasklist /fi "PID eq 1656"
          4⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:824
        • C:\Windows\system32\find.exe
          find ":"
          4⤵
            PID:4116
          • C:\Windows\system32\timeout.exe
            Timeout /T 1 /Nobreak
            4⤵
            • Delays execution with timeout.exe
            PID:4980
          • C:\Users\ToxicEye\rat.exe
            "rat.exe"
            4⤵
            • 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:1896
            • 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"
              5⤵
              • Scheduled Task/Job: Scheduled Task
              PID:3640
      • C:\Users\Admin\AppData\Local\Temp\GcYPoQg2gjwx.exe
        "C:\Users\Admin\AppData\Local\Temp\GcYPoQg2gjwx.exe"
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3516
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\SysWOW64\cmd.exe"
          3⤵
            PID:1988
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\SysWOW64\cmd.exe"
            3⤵
              PID:624

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\GcYPoQg2gjwx.exe

          Filesize

          16.2MB

          MD5

          a2cfaecd80aaa319d36ed1c87fc68dce

          SHA1

          d0478f4274090e27fef08869682f7d181bdfdeba

          SHA256

          cab0c3b7a76fe7356253ed309512908ad769068ad57e61a7ee9ea78586750d81

          SHA512

          3233b9c768b7314eebda5b31dce4d4e0160f58b0b750402fcb848c585a74e2d923992952ce20384dc821b788a5acafa6b8e46030d9bdde9328df480391db2fb2

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

          Filesize

          111KB

          MD5

          cfcf85d457ace60923e67ce7f14adadf

          SHA1

          76f9220c256579361542cddde951d6cbb86ca163

          SHA256

          0a2ea2ae3535420da3b3504d3dc9f45067e55c81c3d4e2d483173e05db0fdd3f

          SHA512

          d2554907ea6f236bfefce0c09dcf1a90a171455038b1bc671eeac787938fea1ed7783954550489d6b0375fd9a2a0c794f728c1d81d79fe6600080de4739ab984

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_da4ydxz4.s3i.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmpF56C.tmp.bat

          Filesize

          188B

          MD5

          b1dd8e657c3625a18353b86a16300805

          SHA1

          07fe0a6951dd3f253a9760a127f72b0b351fcb0a

          SHA256

          623da7799cae5dc00b4927d5145705036a11765e502c6a2d5552be36e87af571

          SHA512

          827216d8587ab9f2f79119b2eb50b95cc453ea51cd609d9774fd663a0f300f5bae77ab418279c4922340c84dd2d62f16040e978cd027b8ca4b2830b64f664669

        • memory/1656-12-0x00007FFA90343000-0x00007FFA90345000-memory.dmp

          Filesize

          8KB

        • memory/1656-16-0x0000017102170000-0x0000017102192000-memory.dmp

          Filesize

          136KB

        • memory/1656-22-0x000001711C610000-0x000001711C620000-memory.dmp

          Filesize

          64KB

        • memory/1896-622-0x000001B1A8A80000-0x000001B1A8AF6000-memory.dmp

          Filesize

          472KB

        • memory/1896-621-0x000001B1A8950000-0x000001B1A89FA000-memory.dmp

          Filesize

          680KB

        • memory/1896-623-0x000001B1A82B0000-0x000001B1A82CE000-memory.dmp

          Filesize

          120KB

        • memory/3516-65-0x0000000000520000-0x0000000000521000-memory.dmp

          Filesize

          4KB

        • memory/3516-618-0x0000000140000000-0x0000000142343000-memory.dmp

          Filesize

          35.3MB

        • memory/3516-27-0x0000000140000000-0x0000000142343000-memory.dmp

          Filesize

          35.3MB

        • memory/3516-33-0x0000000140000000-0x0000000142343000-memory.dmp

          Filesize

          35.3MB

        • memory/3516-28-0x0000000140000000-0x0000000142343000-memory.dmp

          Filesize

          35.3MB

        • memory/3516-29-0x0000000140000000-0x0000000142343000-memory.dmp

          Filesize

          35.3MB

        • memory/4388-45-0x0000000004BC0000-0x0000000004C0C000-memory.dmp

          Filesize

          304KB

        • memory/4388-353-0x00000000072A0000-0x00000000072AA000-memory.dmp

          Filesize

          40KB

        • memory/4388-30-0x0000000004EB0000-0x0000000004ED2000-memory.dmp

          Filesize

          136KB

        • memory/4388-44-0x0000000005E60000-0x0000000005E7E000-memory.dmp

          Filesize

          120KB

        • memory/4388-32-0x0000000005820000-0x0000000005886000-memory.dmp

          Filesize

          408KB

        • memory/4388-31-0x0000000005150000-0x00000000051B6000-memory.dmp

          Filesize

          408KB

        • memory/4388-50-0x0000000006DE0000-0x0000000006E12000-memory.dmp

          Filesize

          200KB

        • memory/4388-51-0x0000000070500000-0x000000007054C000-memory.dmp

          Filesize

          304KB

        • memory/4388-61-0x0000000006DC0000-0x0000000006DDE000-memory.dmp

          Filesize

          120KB

        • memory/4388-62-0x0000000007030000-0x00000000070D3000-memory.dmp

          Filesize

          652KB

        • memory/4388-63-0x0000000007870000-0x0000000007EEA000-memory.dmp

          Filesize

          6.5MB

        • memory/4388-64-0x0000000007230000-0x000000000724A000-memory.dmp

          Filesize

          104KB

        • memory/4388-26-0x00000000051F0000-0x0000000005818000-memory.dmp

          Filesize

          6.2MB

        • memory/4388-34-0x0000000005890000-0x0000000005BE4000-memory.dmp

          Filesize

          3.3MB

        • memory/4388-421-0x00000000074C0000-0x0000000007556000-memory.dmp

          Filesize

          600KB

        • memory/4388-449-0x0000000007430000-0x0000000007441000-memory.dmp

          Filesize

          68KB

        • memory/4388-609-0x0000000007470000-0x000000000747E000-memory.dmp

          Filesize

          56KB

        • memory/4388-610-0x0000000007480000-0x0000000007494000-memory.dmp

          Filesize

          80KB

        • memory/4388-611-0x0000000007560000-0x000000000757A000-memory.dmp

          Filesize

          104KB

        • memory/4388-612-0x00000000074B0000-0x00000000074B8000-memory.dmp

          Filesize

          32KB

        • memory/4388-613-0x000000007338E000-0x000000007338F000-memory.dmp

          Filesize

          4KB

        • memory/4388-21-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

          Filesize

          64KB

        • memory/4388-20-0x0000000002580000-0x00000000025B6000-memory.dmp

          Filesize

          216KB

        • memory/4388-19-0x0000000004BB0000-0x0000000004BC0000-memory.dmp

          Filesize

          64KB

        • memory/4388-11-0x000000007338E000-0x000000007338F000-memory.dmp

          Filesize

          4KB