Analysis

  • max time kernel
    63s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 09:50

General

  • Target
    2026-05-28_fa5e3b560ffcf3ee268ad534574145a8_elex_stop.exe
  • Size 2.6MB
  • Sample260528-lt69xact6m
  • SHA256 506d08698291975c96e9c11eb762f7ed1a855c01a17b615742cc1dae8fdf75dc
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    smtp.mail.me.com

  • Port

    587

  • Password

    RICHARD205lord

Signatures

  • Family: KnightLogger

    KnightLogger is a Windows stealer written in C#.

  • Custom signature
    Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 2 IoCs
  • Custom signature
    Detects executables packed with MEW 3 IoCs
  • Custom signature
    Detects executables referencing many email and collaboration clients. Observed in information steale 2 IoCs
  • Custom signature
    UPX dump on OEP (original entry point) 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 8 IoCs

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

  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 3 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • NTFS ADS 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 25 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-28_fa5e3b560ffcf3ee268ad534574145a8_elex_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-28_fa5e3b560ffcf3ee268ad534574145a8_elex_stop.exe"
    1⤵
    • Adds Run key to start application
    • Subvert Trust Controls: Mark-of-the-Web Bypass
    • System Location Discovery: System Language Discovery
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5344
    • C:\ProgramData\jhdfkldfhndfkjdfnbfklfnf.exe
      C:\ProgramData\jhdfkldfhndfkjdfnbfklfnf.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2784
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        0
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4740
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe -f "C:\Users\Admin\AppData\Local\Temp\tmp230F.tmp"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4060
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe -f "C:\Users\Admin\AppData\Local\Temp\tmp23EA.tmp"
          4⤵
          • Accesses Microsoft Outlook accounts
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4368
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe -f "C:\Users\Admin\AppData\Local\Temp\tmp2524.tmp"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1820
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:884
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2368
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4908
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:3192
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5388
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5536
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:5396
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5412
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5376
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5724
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:6076
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4356
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3780
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3964
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2944
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2496
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5816
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2016
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1152
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5784
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3328
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1940
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1596
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2516
      • C:\Windows\SysWOW64\schtasks.exe
        C:\Windows\SysWOW64\schtasks.exe /create /sc minute /mo 1 /tn "winmgr119.exe" /tr "C:\ProgramData\winmgr119.exe" /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5932
  • C:\ProgramData\winmgr119.exe
    C:\ProgramData\winmgr119.exe
    1⤵
    • Executes dropped EXE
    • Subvert Trust Controls: Mark-of-the-Web Bypass
    • System Location Discovery: System Language Discovery
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    PID:2380
  • C:\ProgramData\winmgr119.exe
    C:\ProgramData\winmgr119.exe
    1⤵
      PID:2628

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          jhdfkldfhndfkjdfnbfklfnf.exe

          • Path C:\ProgramData\jhdfkldfhndfkjdfnbfklfnf.exe
          • Size 2.6MB
          • SHA256 57ac8dc80ae22a8ca77e3e3a1d831ceeeb64809ae9dbf7ccbcd64fe5ce90e4c4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          2c945db753d341ef9b0f02d75d493749

          • Path C:\ProgramData\khaxFMfI\2c945db753d341ef9b0f02d75d493749
          • Size 8B
          • SHA256 acc5de3409d4775f9428b08407883ae8401515aeec96bfde44cb131136d82523
          • MD5 SHA1 SHA512

          winmgr119.exe

          • Path C:\ProgramData\winmgr119.exe
          • Size 2.6MB
          • SHA256 d40961e8aba45c4846072cb58d454f87b3946b26174796cfef5f1ba89ff07651
          • MD5 SHA1 SHA512 SSDEEP TLSH

          tmp230F.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp230F.tmp
          • Size 399B
          • SHA256 b32fa68b79c5a7ceaa89e8e537efe33a963c499666202611329944bd2c09318e
          • MD5 SHA1 SHA512 TLSH

          tmp23EA.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp23EA.tmp
          • Size 400B
          • SHA256 ef54f46b9f1e342fc12e035ae94f57c61ea4e8be4e116f0a1c6f86310f400f49
          • MD5 SHA1 SHA512 TLSH

          tmp2524.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmp2524.tmp
          • Size 391B
          • SHA256 681bcee53cf679ac674e700136f9229b9184fe60ed6410dbd7a33d462ed13ae2
          • MD5 SHA1 SHA512 TLSH

          memory/1820-38-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/1820-36-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/1820-35-0x0000000000400000-0x000000000043C000-memory.dmp

          memory/4060-17-0x0000000000400000-0x000000000048E000-memory.dmp

          memory/4060-23-0x0000000000400000-0x000000000048E000-memory.dmp

          memory/4060-19-0x0000000000400000-0x000000000048E000-memory.dmp

          memory/4060-18-0x0000000000400000-0x000000000048E000-memory.dmp

          memory/4368-27-0x0000000000400000-0x0000000000491000-memory.dmp

          memory/4368-28-0x0000000000400000-0x0000000000491000-memory.dmp

          memory/4368-29-0x0000000000400000-0x0000000000491000-memory.dmp

          memory/4368-31-0x0000000000400000-0x0000000000491000-memory.dmp

          memory/4740-10-0x0000000073510000-0x0000000073AC1000-memory.dmp

          memory/4740-9-0x0000000073511000-0x0000000073512000-memory.dmp

          memory/4740-42-0x0000000073510000-0x0000000073AC1000-memory.dmp

          memory/4740-8-0x0000000000B40000-0x0000000000C0A000-memory.dmp