Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 01:56

General

  • Target

    JaffaCakes118_039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988.exe

  • Size

    4.3MB

  • MD5

    9a1ac4a62009a36f6592a7c8006933f9

  • SHA1

    cfa0c78c5dc89c810ddac677bbde8d5314de678b

  • SHA256

    039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988

  • SHA512

    61304eac2e3ca2112263223a4749a6d225ba8eafaec421f37b5bafa3a4e1c9dd8c1ba641e8a0213df0f7184149be3288e5ec7c6a2c6061d269af1603736ae59d

  • SSDEEP

    98304:UE4nMfESqq+Wwe1bkrDRTIEx8yjXUJenaFJmtutM8OyViShf:UE4Ysq/wXtTnHwcnWJmn2

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 22 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.

  • 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 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
  • 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_039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2324
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988.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:344
      • 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:2868
        • 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:1712
      • 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:2496
        • 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:4396
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2516
          • 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:2908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 344 -s 884
          3⤵
          • Program crash
          PID:4052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 856
        2⤵
        • Program crash
        PID:220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2324 -ip 2324
      1⤵
        PID:1360
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 344 -ip 344
        1⤵
          PID:3564

        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

          9a1ac4a62009a36f6592a7c8006933f9

          SHA1

          cfa0c78c5dc89c810ddac677bbde8d5314de678b

          SHA256

          039a1147cef5b0d433e78b186bc72d250a64ebe9633061a4db15c0f5cd4a8988

          SHA512

          61304eac2e3ca2112263223a4749a6d225ba8eafaec421f37b5bafa3a4e1c9dd8c1ba641e8a0213df0f7184149be3288e5ec7c6a2c6061d269af1603736ae59d

        • memory/344-8-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/344-9-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/344-10-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/344-16-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2324-5-0x00000000047A0000-0x0000000005042000-memory.dmp

          Filesize

          8.6MB

        • memory/2324-4-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2324-6-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2324-1-0x0000000004380000-0x0000000004798000-memory.dmp

          Filesize

          4.1MB

        • memory/2324-3-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2324-2-0x00000000047A0000-0x0000000005042000-memory.dmp

          Filesize

          8.6MB

        • memory/2496-34-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-30-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-27-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-26-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-25-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-28-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-29-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-36-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-31-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-32-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-33-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-24-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-35-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB

        • memory/2496-18-0x0000000000400000-0x00000000023CF000-memory.dmp

          Filesize

          31.8MB