Analysis

  • max time kernel
    131s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 04:04

General

  • Target
    616378dda0b89507badd4b9fe931f840_NeikiAnalytics.exe
  • Size 2.0MB
  • Sample240526-em75asec8s
  • SHA256 4da05bfdb0ac4d1beff6054c7b21f319baa27c49f0b3609d0af27109a308e3b6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
  • Process spawned unexpected child process 18 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 12 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 18 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 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\616378dda0b89507badd4b9fe931f840_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\616378dda0b89507badd4b9fe931f840_NeikiAnalytics.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3032
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IFszAWFu0C.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:2936
        • C:\Program Files (x86)\Windows Portable Devices\SppExtComObj.exe
          "C:\Program Files (x86)\Windows Portable Devices\SppExtComObj.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:556
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2292
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4964
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\Gadgets\dllhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2732
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4176
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2428
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 14 /tr "'C:\Recovery\WindowsRE\dwm.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2500
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Windows\PrintDialog\Assets\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3700
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\PrintDialog\Assets\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3560
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Windows\PrintDialog\Assets\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:696
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:5004
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:4772
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3860
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Windows\schemas\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3160
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\schemas\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2668
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Windows\schemas\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3868
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Portable Devices\SppExtComObj.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3040
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\SppExtComObj.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:3368
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Portable Devices\SppExtComObj.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Creates scheduled task(s)
      PID:2640

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          IFszAWFu0C.bat

          • Path C:\Users\Admin\AppData\Local\Temp\IFszAWFu0C.bat
          • Size 229B
          • SHA256 d88d57cdf87b8af8ef861bd8cd4d34cd3b18303ab6a8b8dda125593d8c205ab2
          • MD5 SHA1 SHA512

          sppsvc.exe

          • Path C:\Windows\schemas\sppsvc.exe
          • Size 2.0MB
          • SHA256 4da05bfdb0ac4d1beff6054c7b21f319baa27c49f0b3609d0af27109a308e3b6
          • MD5 SHA1 SHA512 SSDEEP

          memory/3032-8-0x000000001B5E0000-0x000000001B636000-memory.dmp

          memory/3032-9-0x000000001B630000-0x000000001B63C000-memory.dmp

          memory/3032-4-0x000000001BA50000-0x000000001BAA0000-memory.dmp

          memory/3032-6-0x000000001B460000-0x000000001B470000-memory.dmp

          memory/3032-5-0x0000000002A70000-0x0000000002A78000-memory.dmp

          memory/3032-7-0x000000001B5C0000-0x000000001B5D6000-memory.dmp

          memory/3032-0-0x0000000000670000-0x000000000087C000-memory.dmp

          memory/3032-3-0x0000000002A50000-0x0000000002A6C000-memory.dmp

          memory/3032-10-0x000000001BAA0000-0x000000001BAAC000-memory.dmp

          memory/3032-11-0x000000001BAB0000-0x000000001BABC000-memory.dmp

          memory/3032-12-0x000000001BAC0000-0x000000001BACE000-memory.dmp

          memory/3032-13-0x000000001BAD0000-0x000000001BADE000-memory.dmp

          memory/3032-14-0x000000001BAE0000-0x000000001BAEA000-memory.dmp

          memory/3032-2-0x00007FFF63EE0000-0x00007FFF649A1000-memory.dmp

          memory/3032-111-0x00007FFF63EE0000-0x00007FFF649A1000-memory.dmp

          memory/3032-1-0x00007FFF63EE3000-0x00007FFF63EE5000-memory.dmp