Analysis

  • max time kernel
    113s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/06/2024, 09:37

General

  • Target
    4b12a402f63ef655e760c03c95576140_NeikiAnalytics.exe
  • Size 2.7MB
  • Sample240607-llyb2afd74
  • SHA256 5b7d81321b2dc656f170a1085300beef5e939068d5e85daa6445a59b9375af28
  • 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.

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 4 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 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\4b12a402f63ef655e760c03c95576140_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\4b12a402f63ef655e760c03c95576140_NeikiAnalytics.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • 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
    • System policy modification
    PID:2148
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4784
    • C:\Recovery\WindowsRE\sysmon.exe
      "C:\Recovery\WindowsRE\sysmon.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:2364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3852
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1004
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3160
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3024
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3312
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\RuntimeBroker.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1032
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\odt\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1648
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\odt\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:952
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\odt\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4088
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Windows\RemotePackages\RemoteDesktops\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:440
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteDesktops\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1784
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Windows\RemotePackages\RemoteDesktops\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 5 /tr "'C:\Program Files\MsEdgeCrashpad\attachments\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1732
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Program Files\MsEdgeCrashpad\attachments\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3372
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 14 /tr "'C:\Program Files\MsEdgeCrashpad\attachments\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 12 /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4476
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4628
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4184
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5104

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          msedge.exe

          • Path C:\Program Files\MsEdgeCrashpad\attachments\msedge.exe
          • Size 2.7MB
          • SHA256 5b7d81321b2dc656f170a1085300beef5e939068d5e85daa6445a59b9375af28
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_lss2pfhx.an2.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lss2pfhx.an2.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          memory/2148-14-0x0000000002FF0000-0x0000000002FF8000-memory.dmp

          memory/2148-17-0x0000000003020000-0x0000000003028000-memory.dmp

          memory/2148-4-0x00000000018E0000-0x00000000018FC000-memory.dmp

          memory/2148-7-0x0000000002FB0000-0x0000000002FC0000-memory.dmp

          memory/2148-6-0x00000000018C0000-0x00000000018C8000-memory.dmp

          memory/2148-11-0x0000000002FA0000-0x0000000002FB0000-memory.dmp

          memory/2148-10-0x0000000002FE0000-0x0000000002FE8000-memory.dmp

          memory/2148-9-0x0000000002F90000-0x0000000002F98000-memory.dmp

          memory/2148-8-0x0000000002F70000-0x0000000002F86000-memory.dmp

          memory/2148-5-0x000000001C120000-0x000000001C170000-memory.dmp

          memory/2148-12-0x0000000002FD0000-0x0000000002FDA000-memory.dmp

          memory/2148-13-0x000000001C170000-0x000000001C1C6000-memory.dmp

          memory/2148-15-0x0000000003000000-0x0000000003008000-memory.dmp

          memory/2148-16-0x0000000003010000-0x000000000301C000-memory.dmp

          memory/2148-0-0x00007FFC22ED3000-0x00007FFC22ED5000-memory.dmp

          memory/2148-18-0x000000001C1C0000-0x000000001C1CC000-memory.dmp

          memory/2148-3-0x00000000018B0000-0x00000000018B8000-memory.dmp

          memory/2148-21-0x000000001C3F0000-0x000000001C3F8000-memory.dmp

          memory/2148-19-0x000000001C1D0000-0x000000001C1DC000-memory.dmp

          memory/2148-22-0x000000001C400000-0x000000001C40C000-memory.dmp

          memory/2148-23-0x000000001C410000-0x000000001C41C000-memory.dmp

          memory/2148-20-0x000000001C3E0000-0x000000001C3E8000-memory.dmp

          memory/2148-24-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/2148-27-0x000000001C470000-0x000000001C47C000-memory.dmp

          memory/2148-26-0x000000001C570000-0x000000001C57A000-memory.dmp

          memory/2148-25-0x000000001C460000-0x000000001C468000-memory.dmp

          memory/2148-28-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/2148-29-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/2148-32-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/2148-2-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/2148-1-0x0000000000BA0000-0x0000000000E60000-memory.dmp

          memory/2148-155-0x00007FFC22ED0000-0x00007FFC23991000-memory.dmp

          memory/4784-143-0x000001D663730000-0x000001D663752000-memory.dmp