Analysis

  • max time kernel
    133s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 17:02

General

  • Target
    1641e6bef06dd094ccc1ecb7c6b17ee0_NeikiAnalytics.exe
  • Size 63KB
  • Sample240526-vkf6ssde2v
  • SHA256 53c9aaa80daf28d00963a073e9e159488f66806c62347f7dc06a29261b1ed455
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Disables use of System Restore points 1 TTPs
  • Executes dropped EXE 7 IoCs
  • Modifies system executable filetype association 2 TTPs 13 IoCs
  • UPX packed file 18 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies Control Panel 4 IoCs
  • Modifies registry class 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1641e6bef06dd094ccc1ecb7c6b17ee0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\1641e6bef06dd094ccc1ecb7c6b17ee0_NeikiAnalytics.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Disables RegEdit via registry modification
    • Modifies system executable filetype association
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4556
    • C:\Windows\xk.exe
      C:\Windows\xk.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1064
    • C:\Windows\SysWOW64\IExplorer.exe
      C:\Windows\system32\IExplorer.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4724
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:436
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4268
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2948
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4548
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4636

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        SERVICES.EXE

        • Path C:\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE
        • Size 63KB
        • SHA256 ec408c781015fffc5fb381f95b76c29b08a3a123c528608021d1baeec024d928
        • MD5 SHA1 SHA512 SSDEEP

        SMSS.EXE

        • Path C:\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE
        • Size 63KB
        • SHA256 fdd99ac61ba71640aa7037ff6f755c935af51c28b6cc215b8505035c18d4f7fc
        • MD5 SHA1 SHA512 SSDEEP

        WINLOGON.EXE

        • Path C:\Users\Admin\AppData\Local\WINDOWS\WINLOGON.EXE
        • Size 63KB
        • SHA256 a12f0a145411a42479deea08e992f3655b3d65acc9bd00de6ff8878cc40549ec
        • MD5 SHA1 SHA512 SSDEEP

        winlogon.exe

        • Path C:\Users\Admin\AppData\Local\winlogon.exe
        • Size 63KB
        • SHA256 53c9aaa80daf28d00963a073e9e159488f66806c62347f7dc06a29261b1ed455
        • MD5 SHA1 SHA512 SSDEEP

        CSRSS.EXE

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE
        • Size 63KB
        • SHA256 cdf99324e40f8b724393a7f0fa6df69260b06ef1df3d495f4b87bb0d8a4d2d7c
        • MD5 SHA1 SHA512 SSDEEP

        LSASS.EXE

        • Path C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE
        • Size 63KB
        • SHA256 10f2748996e3fe18b4c40dce559cc66f5b453ff6cfe674c11f36871472d971cd
        • MD5 SHA1 SHA512 SSDEEP

        IExplorer.exe

        • Path C:\Windows\SysWOW64\IExplorer.exe
        • Size 63KB
        • SHA256 2b98f3454d6bab37e7ce41e0e737441b914a15881d7341da8ee73fbb213efa20
        • MD5 SHA1 SHA512 SSDEEP

        xk.exe

        • Path C:\Windows\xk.exe
        • Size 63KB
        • SHA256 c49d134c7ccd117f06dcee15ca3c8737af58941d7d1b161ccbfb948772b19f16
        • MD5 SHA1 SHA512 SSDEEP

        memory/436-123-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/1064-110-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/2948-138-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4268-130-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4548-141-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4548-146-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4556-0-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4556-153-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4636-152-0x0000000000400000-0x000000000042F000-memory.dmp

        memory/4724-117-0x0000000000400000-0x000000000042F000-memory.dmp