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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/12/2024, 09:54

General

  • Target

    JaffaCakes118_96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3.exe

  • Size

    4.3MB

  • MD5

    9c56f2993833e6d3a0c8c8a6dedad972

  • SHA1

    28f76e07d1316f7d1bfcf21aa3e5f5179e4eb0cd

  • SHA256

    96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3

  • SHA512

    218d87272643bd28073959262a88f93fe7c7e91b29d865c0808d628fa886ec59fff7ae3ab6a5bd44a283a93bfd3dd6bc9f574c3ccbad635e4de95231e73ef238

  • SSDEEP

    98304:dm5LrwyVff9feDG+hL8Nz2IvspsbafKpb2qXyBm4LRd:YLtf132Ivusbaf1qXyBmE

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

  • Glupteba family
  • Glupteba payload 20 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Metasploit family
  • Modifies Windows Firewall 2 TTPs 1 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.

  • 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 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.

  • Program crash 1 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 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_96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5044
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3.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:3084
      • 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:2628
        • 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:3836
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /301-301
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4816
        • 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:2808
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5020
          • 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:1264
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 928
          3⤵
          • Program crash
          PID:1948
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3084 -ip 3084
      1⤵
        PID:3520

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        281KB

        MD5

        d98e33b66343e7c96158444127a117f6

        SHA1

        bb716c5509a2bf345c6c1152f6e3e1452d39d50d

        SHA256

        5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

        SHA512

        705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

      • C:\Windows\rss\csrss.exe

        Filesize

        4.3MB

        MD5

        9c56f2993833e6d3a0c8c8a6dedad972

        SHA1

        28f76e07d1316f7d1bfcf21aa3e5f5179e4eb0cd

        SHA256

        96678f473c49cdf5da7ed66454ffdde97e1fdce1564a4c57b9114f3948e0b1b3

        SHA512

        218d87272643bd28073959262a88f93fe7c7e91b29d865c0808d628fa886ec59fff7ae3ab6a5bd44a283a93bfd3dd6bc9f574c3ccbad635e4de95231e73ef238

      • memory/3084-12-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-25-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-22-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-32-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-31-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-30-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-14-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-29-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-20-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-21-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-28-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-23-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-24-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-27-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/4816-26-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB

      • memory/5044-1-0x0000000004D20000-0x0000000005130000-memory.dmp

        Filesize

        4.1MB

      • memory/5044-6-0x0000000000400000-0x0000000000CBD000-memory.dmp

        Filesize

        8.7MB

      • memory/5044-2-0x0000000005130000-0x00000000059D2000-memory.dmp

        Filesize

        8.6MB

      • memory/5044-3-0x0000000000400000-0x0000000000CBD000-memory.dmp

        Filesize

        8.7MB

      • memory/5044-5-0x0000000005130000-0x00000000059D2000-memory.dmp

        Filesize

        8.6MB

      • memory/5044-4-0x0000000000400000-0x0000000002F41000-memory.dmp

        Filesize

        43.3MB