Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 07:39

General

  • Target

    JaffaCakes118_25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03.exe

  • Size

    4.2MB

  • MD5

    dc5d3b218f7fee996ca86f9e5a5f1c1f

  • SHA1

    03b398469e9a71505da1a3a35caa5f66b0a10c4c

  • SHA256

    25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03

  • SHA512

    d7e5bbfd1233983bc718021742ae2accf9e3db8117aac14d42805fd973fd76f1469e779bb26a4a85d9d2166fa0500e70cf0be7ebfd8717ced8fb824c87b569d9

  • SSDEEP

    98304:Ze7Z0pX1eUm2qo4OmS3UYU1DzN7tHGqqbnr9wNWVaRk:Ze7eBrPmk+1VtmqqVGWOk

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 21 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.

  • 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_25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2096
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03.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:1260
      • 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:4912
        • 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:936
      • 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:3324
        • 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:3208
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1244
          • 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:3096

    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

      4.2MB

      MD5

      dc5d3b218f7fee996ca86f9e5a5f1c1f

      SHA1

      03b398469e9a71505da1a3a35caa5f66b0a10c4c

      SHA256

      25d043347a819f2992f2256a2dbd344ef2ae3f973e1533b197d808b9d0028a03

      SHA512

      d7e5bbfd1233983bc718021742ae2accf9e3db8117aac14d42805fd973fd76f1469e779bb26a4a85d9d2166fa0500e70cf0be7ebfd8717ced8fb824c87b569d9

    • memory/1260-6-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/1260-7-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/1260-8-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/1260-14-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/2096-4-0x0000000002E90000-0x000000000329F000-memory.dmp

      Filesize

      4.1MB

    • memory/2096-5-0x00000000032A0000-0x0000000003B42000-memory.dmp

      Filesize

      8.6MB

    • memory/2096-3-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/2096-0-0x0000000002E90000-0x000000000329F000-memory.dmp

      Filesize

      4.1MB

    • memory/2096-2-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/2096-1-0x00000000032A0000-0x0000000003B42000-memory.dmp

      Filesize

      8.6MB

    • memory/3324-31-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-27-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-24-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-23-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-22-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-25-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-26-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-33-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-28-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-29-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-30-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-21-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-32-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB

    • memory/3324-15-0x0000000000400000-0x0000000000CBD000-memory.dmp

      Filesize

      8.7MB