Analysis

  • max time kernel
    161s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 20:34

General

  • Target
    82__GT7568.PDF.exe
  • Size 1.8MB
  • Sample240408-zceefsed8v
  • SHA256 d47545c45a81a2d812ff5d4c9510cb935764dd94df0edb0c3c3d80666536d342
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect ZGRat V1 29 IoCs
  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • ModiLoader Second Stage 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\82__GT7568.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\82__GT7568.PDF.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:260
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\YfpuolqbO.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
        3⤵
          PID:5008
        • C:\Windows\SysWOW64\xcopy.exe
          xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
          3⤵
          • Enumerates system info in registry
          PID:4684
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
          3⤵
            PID:1624
          • C:\Windows\SysWOW64\xcopy.exe
            xcopy "Aaa.bat" "C:\Windows \System32\" /K /D /H /Y
            3⤵
            • Enumerates system info in registry
            PID:1844
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" ECHO F"
            3⤵
              PID:4056
            • C:\Windows\SysWOW64\xcopy.exe
              xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
              3⤵
              • Enumerates system info in registry
              PID:1636
            • C:\Windows \System32\easinvoker.exe
              "C:\Windows \System32\easinvoker.exe"
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:4940
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c ""C:\windows \system32\aaa.bat""
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:4052
                • C:\Windows\system32\cmd.exe
                  cmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                  5⤵
                  • Suspicious use of WriteProcessMemory
                  PID:412
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                    powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
                    6⤵
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2380
          • C:\Windows\SysWOW64\extrac32.exe
            C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\82__GT7568.PDF.exe C:\\Users\\Public\\Libraries\\Yfpuolqb.PIF
            2⤵
              PID:620
            • C:\Users\Public\Libraries\bqloupfY.pif
              C:\Users\Public\Libraries\bqloupfY.pif
              2⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:4400
          • 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=3720 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
            1⤵
              PID:3804

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  __PSScriptPolicyTest_fn0spih3.1np.ps1

                  • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fn0spih3.1np.ps1
                  • Size 60B
                  • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                  • MD5 SHA1 SHA512

                  YfpuolqbO.bat

                  • Path C:\Users\Public\Libraries\YfpuolqbO.bat
                  • Size 29KB
                  • SHA256 abac4a967800f5da708572ec42441ec373cd52459a83a8a382d6b8579482789d
                  • MD5 SHA1 SHA512 SSDEEP

                  aaa.bat

                  • Path C:\Users\Public\Libraries\aaa.bat
                  • Size 18KB
                  • SHA256 cd05094e213643d624996b98e14aa5f7a2363f63530fe0c99523f6948effe756
                  • MD5 SHA1 SHA512 SSDEEP

                  bqloupfY.pif

                  • Path C:\Users\Public\Libraries\bqloupfY.pif
                  • Size 66KB
                  • SHA256 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
                  • MD5 SHA1 SHA512 SSDEEP

                  easinvoker.exe

                  • Path C:\Users\Public\Libraries\easinvoker.exe
                  • Size 128KB
                  • SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
                  • MD5 SHA1 SHA512 SSDEEP

                  netutils.dll

                  • Path C:\Users\Public\Libraries\netutils.dll
                  • Size 112KB
                  • SHA256 7c6b2128913876dcb70603f2c00618d2e9057f381766565baf2a37100b85f1fd
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/260-7-0x0000000000400000-0x00000000005D5000-memory.dmp

                  memory/260-5-0x0000000002F00000-0x0000000003F00000-memory.dmp

                  memory/260-4-0x0000000002F00000-0x0000000003F00000-memory.dmp

                  memory/260-30-0x00000000007B0000-0x00000000007B1000-memory.dmp

                  memory/260-1-0x0000000000400000-0x00000000005D5000-memory.dmp

                  memory/260-0-0x00000000007B0000-0x00000000007B1000-memory.dmp

                  memory/2380-40-0x000002106AE80000-0x000002106AEA2000-memory.dmp

                  memory/2380-43-0x0000021068DD0000-0x0000021068DE0000-memory.dmp

                  memory/2380-44-0x0000021068DD0000-0x0000021068DE0000-memory.dmp

                  memory/2380-42-0x0000021068DD0000-0x0000021068DE0000-memory.dmp

                  memory/2380-41-0x00007FF892AD0000-0x00007FF893591000-memory.dmp

                  memory/2380-47-0x00007FF892AD0000-0x00007FF893591000-memory.dmp

                  memory/4400-73-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-93-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-60-0x0000000000400000-0x0000000001400000-memory.dmp

                  memory/4400-61-0x0000000000400000-0x0000000001400000-memory.dmp

                  memory/4400-62-0x0000000034470000-0x00000000344CA000-memory.dmp

                  memory/4400-63-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4400-64-0x0000000034530000-0x0000000034AD4000-memory.dmp

                  memory/4400-65-0x0000000034B20000-0x0000000034B78000-memory.dmp

                  memory/4400-67-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4400-66-0x0000000074C40000-0x00000000753F0000-memory.dmp

                  memory/4400-68-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-71-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-69-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-75-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-55-0x0000000000400000-0x0000000001400000-memory.dmp

                  memory/4400-77-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-79-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-81-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-83-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-85-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-87-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-89-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-91-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-58-0x0000000000400000-0x0000000001400000-memory.dmp

                  memory/4400-97-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-101-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-105-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-107-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-103-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-109-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-111-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-99-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-95-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-113-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-115-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-119-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-117-0x0000000034B20000-0x0000000034B73000-memory.dmp

                  memory/4400-1121-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4400-1122-0x0000000034C80000-0x0000000034CE6000-memory.dmp

                  memory/4400-1124-0x0000000035CC0000-0x0000000035D10000-memory.dmp

                  memory/4400-1125-0x0000000035D10000-0x0000000035DAC000-memory.dmp

                  memory/4400-1126-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4400-1129-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4400-1128-0x0000000074C40000-0x00000000753F0000-memory.dmp

                  memory/4400-1130-0x0000000035E30000-0x0000000035EC2000-memory.dmp

                  memory/4400-1131-0x0000000035F40000-0x0000000035F4A000-memory.dmp

                  memory/4400-1132-0x0000000034520000-0x0000000034530000-memory.dmp

                  memory/4940-27-0x00000000613C0000-0x00000000613E3000-memory.dmp