Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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 2 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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 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 9 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 2 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 49 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 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⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\PortProvider\DzCwpCkJdr4koY7MC7MVjsek9PHrJLIJ9gAk8e9Xk.vbe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\PortProvider\BUCYdXdBqjiHoqAbv0mbdlZThQaACdO5DnnKmo2kaGCknouSO.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • 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:3472
        • C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe
          "C:\Users\Admin\AppData\Roaming\PortProvider/blockprovidercomponentreview.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4916
          • 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\ocfbjyh3\ocfbjyh3.cmdline"
            5⤵
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:4160
            • 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\RESA41F.tmp" "c:\Windows\System32\CSCD14B69D2343B4D1FAA71A5EFDE1F3C3.TMP"
              6⤵
                PID:3524
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\yXvG37C0SW.bat"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2612
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:3660
                • C:\Windows\system32\w32tm.exe
                  w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
                  6⤵
                    PID:216
                  • C:\Program Files\Windows Defender\uk-UA\unsecapp.exe
                    "C:\Program Files\Windows Defender\uk-UA\unsecapp.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious behavior: GetForegroundWindowSpam
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3080
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Defender\uk-UA\unsecapp.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1948
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Program Files\Windows Defender\uk-UA\unsecapp.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4592
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Defender\uk-UA\unsecapp.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2040
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Setup Files\spoolsv.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:2888
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Setup Files\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1252
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Adobe\Acrobat Reader DC\Setup Files\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4744
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 8 /tr "'C:\odt\Registry.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1824
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "Registry" /sc ONLOGON /tr "'C:\odt\Registry.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3128
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "RegistryR" /sc MINUTE /mo 8 /tr "'C:\odt\Registry.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4892
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Photo Viewer\spoolsv.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:1888
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Photo Viewer\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:692
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Photo Viewer\spoolsv.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:4792
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 9 /tr "'C:\Program Files\Java\jdk-1.8\lib\OfficeClickToRun.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:5020
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Java\jdk-1.8\lib\OfficeClickToRun.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3116
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 8 /tr "'C:\Program Files\Java\jdk-1.8\lib\OfficeClickToRun.exe'" /rl HIGHEST /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:5072
        • C:\Windows\system32\schtasks.exe
          schtasks.exe /create /tn "blockprovidercomponentreviewb" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\AppData\Roaming\PortProvider\blockprovidercomponentreview.exe'" /f
          1⤵
          • Process spawned unexpected child process
          • Creates scheduled task(s)
          PID:3488
        • 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:1588
        • 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:4064

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              RESA41F.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESA41F.tmp
              • Size 1KB
              • SHA256 ab1835b362febe5b2de018234b21ed7e6d4cfb9c40ef1003c6057293125f6a8f
              • MD5 SHA1 SHA512

              yXvG37C0SW.bat

              • Path C:\Users\Admin\AppData\Local\Temp\yXvG37C0SW.bat
              • Size 228B
              • SHA256 b0fec9f306cb745a196c51a9cdd8597d9b99f53c0685a8621102740640a4f59f
              • 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

              blockprovidercomponentreview.exe

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

              ocfbjyh3.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\ocfbjyh3\ocfbjyh3.0.cs
              • Size 384B
              • SHA256 f1cf6974a160770c8a78a1fefa89f7ec6c953c9998841b4ebb8fb8cbc7fd7b04
              • MD5 SHA1 SHA512

              ocfbjyh3.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\ocfbjyh3\ocfbjyh3.cmdline
              • Size 235B
              • SHA256 964cba368d26b002494d61be512923e006e47e21ac87a02a269fc34234f39021
              • MD5 SHA1 SHA512

              CSCD14B69D2343B4D1FAA71A5EFDE1F3C3.TMP

              • Path \??\c:\Windows\System32\CSCD14B69D2343B4D1FAA71A5EFDE1F3C3.TMP
              • Size 1KB
              • SHA256 a20d42bbecd683556a645d5a4978e85a9dd36fde0fd646399f15fdc38b1cc43b
              • MD5 SHA1 SHA512

              memory/3080-70-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-72-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-65-0x00007FFED1A70000-0x00007FFED2531000-memory.dmp

              memory/3080-64-0x00000000023B0000-0x00000000023B8000-memory.dmp

              memory/3080-67-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-69-0x00007FFEEED30000-0x00007FFEEEDEE000-memory.dmp

              memory/3080-60-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-66-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-63-0x00007FFEEECC0000-0x00007FFEEECC1000-memory.dmp

              memory/3080-62-0x00007FFEEED30000-0x00007FFEEEDEE000-memory.dmp

              memory/3080-75-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-57-0x00007FFED1A70000-0x00007FFED2531000-memory.dmp

              memory/3080-58-0x000000001B010000-0x000000001B020000-memory.dmp

              memory/3080-59-0x0000000000B90000-0x0000000000B91000-memory.dmp

              memory/4916-19-0x00007FFEEECC0000-0x00007FFEEECC1000-memory.dmp

              memory/4916-52-0x00007FFED1A70000-0x00007FFED2531000-memory.dmp

              memory/4916-51-0x00007FFEEED30000-0x00007FFEEEDEE000-memory.dmp

              memory/4916-21-0x00007FFEEED30000-0x00007FFEEEDEE000-memory.dmp

              memory/4916-20-0x000000001BCD0000-0x000000001BCE0000-memory.dmp

              memory/4916-18-0x000000001B9B0000-0x000000001B9BE000-memory.dmp

              memory/4916-16-0x00007FFEEED30000-0x00007FFEEEDEE000-memory.dmp

              memory/4916-15-0x000000001BCD0000-0x000000001BCE0000-memory.dmp

              memory/4916-14-0x00000000014A0000-0x00000000014A1000-memory.dmp

              memory/4916-13-0x00007FFED1A70000-0x00007FFED2531000-memory.dmp

              memory/4916-12-0x0000000000D50000-0x0000000000EF2000-memory.dmp