Overview

overview

8

Static

static

3

koid.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    77s
  • max time network
    86s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-06-2024 12:04

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General

  • Target

    koid.exe

  • Size

    1.7MB

  • MD5

    937bd53a5f505b8e9b00416590ad8d92

  • SHA1

    5abece11f9d282ec009bf441f132676344f1ede2

  • SHA256

    662d56478c8fa24fb43b71cba64af8d941ddb90659c2412144b46137e2cc4c36

  • SHA512

    2027fe14eff8cc0edd67be7f159e0710d79376aef11a70d4c0ad94d501667fd178780fb3a8f0c4481d2da32a3f6fd698e45cef297aee628cda1ae164e0434dd5

  • SSDEEP

    49152:MXi87ZaoNcK9mVrSPYO1M+BrgdhwmzJnU:yvycBr

Score
8/10
persistence

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 4 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies registry class 27 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\koid.exe
    "C:\Users\Admin\AppData\Local\Temp\koid.exe"
    1⤵
      PID:2176
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1912
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:3104
      • C:\Windows\system32\sihost.exe
        sihost.exe
        1⤵
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2300
        • C:\Windows\explorer.exe
          explorer.exe /LOADSAVEDWINDOWS
          2⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          PID:3128
      • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
        1⤵
        • Modifies registry class
        PID:4812
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:4352
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:3652
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:2528
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
          PID:3940
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
            PID:928
          • C:\Windows\explorer.exe
            explorer.exe
            1⤵
              PID:3540

            Network

            MITRE ATT&CK Enterprise v15

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            Downloads

            • C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133632723301424183.txt
              Filesize

              75KB

              MD5

              79ea60e4feeffe4483ba2d0ea61852fb

              SHA1

              7d5921a1b6240cc717ad4f4478bbcfc42f3af8e8

              SHA256

              1e85f6cd486b20682b1a6af9f34e7993a558f3b5dccd1e80a55178847e794923

              SHA512

              4d0866c2b63af9570fa20bca628a6e67b3704d7ab5a8a1311fb614f38b54444cc6630390092282f075751cae38000a17e4bf1cb992a8900b0c72965c0b24dbf4

              Download Submit

            • memory/1912-7-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-6-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-12-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-11-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-10-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-9-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-2-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-0-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-8-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/1912-1-0x0000020FC4F80000-0x0000020FC4F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/3940-30-0x0000000002F80000-0x0000000002F81000-memory.dmp

              Filesize

              4KB

              Download

            • memory/4812-31-0x000001F8DC800000-0x000001F8DC900000-memory.dmp

              Filesize

              1024KB

              Download

            • memory/4812-36-0x000001F8DD320000-0x000001F8DD340000-memory.dmp

              Filesize

              128KB

              Download

            • memory/4812-58-0x000001F8DD6F0000-0x000001F8DD710000-memory.dmp

              Filesize

              128KB

              Download

            • memory/4812-44-0x000001F8DD2E0000-0x000001F8DD300000-memory.dmp

              Filesize

              128KB

              Download