Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2024, 14:06

General

  • Target
    9A495517949AA4F4112EDA7460B6903C.exe
  • Size 1.9MB
  • Sample240302-reeh8sed64
  • SHA256 137f811a64808946b6f03fa54450fa9a4fe77eacfb7afa39f0a1a7a1ce659a60
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect ZGRat V1 3 IoCs
  • 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.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Disables Task Manager via registry modification
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 12 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 2 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 key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 34 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\9A495517949AA4F4112EDA7460B6903C.exe
    "C:\Users\Admin\AppData\Local\Temp\9A495517949AA4F4112EDA7460B6903C.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\PortProvider\DzCwpCkJdr4koY7MC7MVjsek9PHrJLIJ9gAk8e9Xk.vbe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3008
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Roaming\PortProvider\BUCYdXdBqjiHoqAbv0mbdlZThQaACdO5DnnKmo2kaGCknouSO.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Windows\SysWOW64\reg.exe
          reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          4⤵
          • Modifies registry key
          PID:2500
        • C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe
          "C:\Users\Admin\AppData\Roaming\PortProvider/blockprovidercomponentreview.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2576
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\wv1wpcra\wv1wpcra.cmdline"
            5⤵
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:2736
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES75DB.tmp" "c:\Windows\System32\CSC8AA882C2C2724CB6A18F4C25C1B227C.TMP"
              6⤵
                PID:836
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\fjuDwulKea.bat"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2436
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:1464
                • C:\Windows\system32\w32tm.exe
                  w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                  6⤵
                    PID:888
                  • C:\Users\Admin\NetHood\lsm.exe
                    "C:\Users\Admin\NetHood\lsm.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious behavior: GetForegroundWindowSpam
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2076
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\cmd.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2892
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2948
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Reference Assemblies\Microsoft\cmd.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2612
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\NetHood\lsm.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2488
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Users\Admin\NetHood\lsm.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1508
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "lsml" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\NetHood\lsm.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:112
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 8 /tr "'C:\Recovery\ed850442-d104-11ee-9c57-c695cbc44580\conhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2708
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Recovery\ed850442-d104-11ee-9c57-c695cbc44580\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1504
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 13 /tr "'C:\Recovery\ed850442-d104-11ee-9c57-c695cbc44580\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1028
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 14 /tr "'C:\Windows\LiveKernelReports\conhost.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2024
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhost" /sc ONLOGON /tr "'C:\Windows\LiveKernelReports\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2244
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "conhostc" /sc MINUTE /mo 11 /tr "'C:\Windows\LiveKernelReports\conhost.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2232
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreviewb" /sc MINUTE /mo 5 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\blockprovidercomponentreview.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1864
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreview" /sc ONLOGON /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\blockprovidercomponentreview.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2252
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreviewb" /sc MINUTE /mo 12 /tr "'C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\blockprovidercomponentreview.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1996
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreviewb" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:268
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreview" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1412
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreviewb" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1396

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              RES75DB.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RES75DB.tmp
              • Size 1KB
              • SHA256 e40bd935abefed326771199c52e8a48ebc6a776e8408da015aba022032327d55
              • MD5 SHA1 SHA512

              fjuDwulKea.bat

              • Path C:\Users\Admin\AppData\Local\Temp\fjuDwulKea.bat
              • Size 206B
              • SHA256 fb82472e068af02e8c82a8ab4a669ea1ee421e0af1fd4cf03ce3bfd71eb2be64
              • MD5 SHA1 SHA512

              BUCYdXdBqjiHoqAbv0mbdlZThQaACdO5DnnKmo2kaGCknouSO.bat

              • Path C:\Users\Admin\AppData\Roaming\PortProvider\BUCYdXdBqjiHoqAbv0mbdlZThQaACdO5DnnKmo2kaGCknouSO.bat
              • Size 199B
              • SHA256 fcd1252465f440248ccf4375f9f27c79d44a9f096e732ce39e63a6b7260c6bc8
              • MD5 SHA1 SHA512

              DzCwpCkJdr4koY7MC7MVjsek9PHrJLIJ9gAk8e9Xk.vbe

              • Path C:\Users\Admin\AppData\Roaming\PortProvider\DzCwpCkJdr4koY7MC7MVjsek9PHrJLIJ9gAk8e9Xk.vbe
              • Size 247B
              • SHA256 69bfc93ec86b53320016e735c354f7f06666d30598c05fb40d0589b29a9b88ee
              • MD5 SHA1 SHA512

              wv1wpcra.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\wv1wpcra\wv1wpcra.0.cs
              • Size 393B
              • SHA256 41859d5a4235e2fdd8896da8b520044a6525b7cb7e971cb71491cd653b82658e
              • MD5 SHA1 SHA512

              wv1wpcra.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\wv1wpcra\wv1wpcra.cmdline
              • Size 235B
              • SHA256 f5c921c4c8214ab0cd917016ca358d3f6aa631c917bd6c3195a1ced9ad355c44
              • MD5 SHA1 SHA512

              CSC8AA882C2C2724CB6A18F4C25C1B227C.TMP

              • Path \??\c:\Windows\System32\CSC8AA882C2C2724CB6A18F4C25C1B227C.TMP
              • Size 1KB
              • SHA256 67e68135a985b6d3a0d63df5c6795567cbc1d5b8f124d65662e463af4da65823
              • MD5 SHA1 SHA512

              blockprovidercomponentreview.exe

              • Path \Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe
              • Size 1.6MB
              • SHA256 1fee0ec11b24c8382c5e53e7bbb469f9226d06e84600d3d6ef8c890b3aa09438
              • MD5 SHA1 SHA512 SSDEEP

              memory/2076-58-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-62-0x000007FEF4F80000-0x000007FEF596C000-memory.dmp

              memory/2076-67-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-66-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-65-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-64-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-63-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-61-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2076-60-0x0000000077240000-0x0000000077241000-memory.dmp

              memory/2076-55-0x000007FEF4F80000-0x000007FEF596C000-memory.dmp

              memory/2076-54-0x0000000000AB0000-0x0000000000C52000-memory.dmp

              memory/2076-57-0x00000000002C0000-0x00000000002C1000-memory.dmp

              memory/2076-56-0x000000001A8D0000-0x000000001A950000-memory.dmp

              memory/2576-13-0x00000000003A0000-0x0000000000542000-memory.dmp

              memory/2576-14-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

              memory/2576-50-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

              memory/2576-20-0x0000000077240000-0x0000000077241000-memory.dmp

              memory/2576-15-0x000000001B490000-0x000000001B510000-memory.dmp

              memory/2576-16-0x00000000002C0000-0x00000000002C1000-memory.dmp

              memory/2576-17-0x000000001B490000-0x000000001B510000-memory.dmp

              memory/2576-19-0x0000000000310000-0x000000000031E000-memory.dmp

              memory/2576-21-0x000000001B490000-0x000000001B510000-memory.dmp