Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    29/12/2024, 22:10

General

  • Target
    JaffaCakes118_ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4.exe
  • Size 4.1MB
  • Sample241229-13ch8ayjht
  • SHA256 ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba family
  • Glupteba payload 20 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies boot configuration data using bcdedit 14 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Possible attempt to disable PatchGuard 2 TTPs

    Rootkits can use kernel patching to embed themselves in an operating system.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 13 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMon driver. 1 IoCs

    Roottkits write to WinMon to hide PIDs from being detected.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 3 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 62 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\JaffaCakes118_ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3004
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • Modifies data under HKEY_USERS
          PID:3056
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Manipulates WinMon driver.
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies system certificate store
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2692
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1804
        • C:\Windows\system32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1632
          • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
            "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies system certificate store
            • Suspicious use of WriteProcessMemory
            PID:2224
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -create {71A3C7FC-F751-4982-AEC1-E958357E6813} -d "Windows Fast Mode" -application OSLOADER
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2540
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} device partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2976
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} osdevice partition=C:
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1592
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} systemroot \Windows
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2152
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} path \Windows\system32\osloader.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:444
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} kernel ntkrnlmp.exe
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2768
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} recoveryenabled 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2360
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nx OptIn
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:1064
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} nointegritychecks 1
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2552
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -set {71A3C7FC-F751-4982-AEC1-E958357E6813} inherit {bootloadersettings}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3060
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -displayorder {71A3C7FC-F751-4982-AEC1-E958357E6813} -addlast
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3048
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -timeout 0
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:2828
            • C:\Windows\system32\bcdedit.exe
              C:\Windows\system32\bcdedit.exe -default {71A3C7FC-F751-4982-AEC1-E958357E6813}
              5⤵
              • Modifies boot configuration data using bcdedit
              PID:3000
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:2620
          • C:\Windows\system32\bcdedit.exe
            C:\Windows\Sysnative\bcdedit.exe /v
            4⤵
            • Modifies boot configuration data using bcdedit
            PID:3004
          • C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
            4⤵
            • Executes dropped EXE
            PID:3008
          • C:\Windows\system32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2276
    • C:\Windows\system32\makecab.exe
      "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20241229221011.log C:\Windows\Logs\CBS\CbsPersist_20241229221011.cab
      1⤵
      • Drops file in Windows directory
      PID:1500

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          download.error

          • Path C:\Users\Admin\AppData\Local\Temp\Symbols\ntkrnlmp.pdb\AAF33CF37E194E98957768CF9C02DE8E2\download.error
          • Size 8.3MB
          • SHA256 3a72dbedc490773f90e241c8b3b839383a63ce36426a4f330a0f754b14b4d23e
          • MD5 SHA1 SHA512 SSDEEP

          download.error

          • Path C:\Users\Admin\AppData\Local\Temp\Symbols\winload_prod.pdb\768283CA443847FB8822F9DB1F36ECC51\download.error
          • Size 492KB
          • SHA256 feb122b7916a1e62a7a6ae8d25ea48a2efc86f6e6384f5526e18ffbfc5f5ff71
          • MD5 SHA1 SHA512 SSDEEP

          injector.exe

          • Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          • Size 281KB
          • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
          • MD5 SHA1 SHA512 SSDEEP

          osloader.exe

          • Path C:\Users\Admin\AppData\Local\Temp\osloader.exe
          • Size 591KB
          • SHA256 b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4
          • MD5 SHA1 SHA512 SSDEEP

          dsefix.exe

          • Path \Users\Admin\AppData\Local\Temp\csrss\dsefix.exe
          • Size 94KB
          • SHA256 414035cc96d8bcc87ed173852a839ffbb45882a98c7a6f7b821e1668891deef0
          • MD5 SHA1 SHA512 SSDEEP

          patch.exe

          • Path \Users\Admin\AppData\Local\Temp\csrss\patch.exe
          • Size 1.7MB
          • SHA256 f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3
          • MD5 SHA1 SHA512 SSDEEP

          dbghelp.dll

          • Path \Users\Admin\AppData\Local\Temp\dbghelp.dll
          • Size 1.5MB
          • SHA256 6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026
          • MD5 SHA1 SHA512 SSDEEP

          ntkrnlmp.exe

          • Path \Users\Admin\AppData\Local\Temp\ntkrnlmp.exe
          • Size 5.3MB
          • SHA256 c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1
          • MD5 SHA1 SHA512 SSDEEP

          symsrv.dll

          • Path \Users\Admin\AppData\Local\Temp\symsrv.dll
          • Size 163KB
          • SHA256 e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f
          • MD5 SHA1 SHA512 SSDEEP

          csrss.exe

          • Path \Windows\rss\csrss.exe
          • Size 4.1MB
          • SHA256 ce783f58d78f69218cbcdcf3db34ebdca2e7519a8fcb950b007dc0e78dc188d4
          • MD5 SHA1 SHA512 SSDEEP

          memory/2132-7-0x0000000004EB0000-0x0000000005727000-memory.dmp

          memory/2132-1-0x00000000033A0000-0x0000000003789000-memory.dmp

          memory/2132-0-0x00000000033A0000-0x0000000003789000-memory.dmp

          memory/2132-2-0x0000000004EB0000-0x0000000005727000-memory.dmp

          memory/2132-5-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2132-8-0x0000000000400000-0x0000000000C91000-memory.dmp

          memory/2132-6-0x00000000033A0000-0x0000000003789000-memory.dmp

          memory/2132-3-0x0000000000400000-0x0000000000C91000-memory.dmp

          memory/2224-39-0x00000000004F0000-0x0000000000AD8000-memory.dmp

          memory/2224-25-0x0000000000450000-0x0000000000A38000-memory.dmp

          memory/2224-67-0x0000000000450000-0x0000000000A38000-memory.dmp

          memory/2692-70-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-88-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-45-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-71-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-72-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-73-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-77-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-112-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-17-0x00000000031E0000-0x00000000035C9000-memory.dmp

          memory/2692-69-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-68-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-111-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-108-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-109-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2692-110-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2760-18-0x0000000000400000-0x0000000002FFC000-memory.dmp

          memory/2760-4-0x0000000003070000-0x0000000003459000-memory.dmp