Overview

overview

10

Static

static

1

JaffaCakes...ba.exe

windows7-x64

10

JaffaCakes...ba.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • 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 18:57

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General

  • Target

    JaffaCakes118_120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba.exe

  • Size

    4.1MB

  • MD5

    e762011443b09ed2eae72841497f51ce

  • SHA1

    20bc3383a7697d501bb8a1fdc8c95a3f0f1798b6

  • SHA256

    120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba

  • SHA512

    d026cc2e028b3e6f1e01c209b43afac0ed466eccb1b959b6df8987d7e8adfb2b201a4b1d97946153dfedd197136a7aca90e1138a275f1cb0a7c10a7732abb24f

  • SSDEEP

    98304:XRHlIzsOces3UE6F4P9urb4KlmHQR5harZhAnOx:hSIeskE6yPwoczPar7rx

Score
10/10
gluptebadiscoverydropperevasionloaderpersistenceprivilege_escalationrootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 20 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

    rootkitevasion
  • 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.

    persistenceprivilege_escalation
  • 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.

    discovery
  • Modifies data under HKEY_USERS 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

    persistenceexecution
  • 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1244
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba.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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4156
      • 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:1880
        • 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:3372
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2316
        • 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:4740
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4860
          • 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:3596
          • 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:3632
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4156 -s 660
          3⤵
          • Program crash
          PID:2512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4156 -ip 4156
      1⤵
        PID:3576

      Network

      MITRE ATT&CK Enterprise v15

      Reconnaissance

      Resource Development

      Initial Access

      Execution

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Event Triggered Execution

      1
      T1546

      Netsh Helper DLL

      1
      T1546.007

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Event Triggered Execution

      1
      T1546

      Netsh Helper DLL

      1
      T1546.007

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Defense Evasion

      Impair Defenses

      1
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Modify Registry

      1
      T1112

      Credential Access

      Discovery

      Query Registry

      2
      T1012

      System Information Discovery

      1
      T1082

      System Location Discovery

      1
      T1614

      System Language Discovery

      1
      T1614.001

      Lateral Movement

      Collection

      Command and Control

      Exfiltration

      Impact

      Replay Monitor

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      Downloads

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

        281KB

        MD5

        d98e33b66343e7c96158444127a117f6

        SHA1

        bb716c5509a2bf345c6c1152f6e3e1452d39d50d

        SHA256

        5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

        SHA512

        705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

        Download Submit

      • C:\Windows\rss\csrss.exe
        Filesize

        4.1MB

        MD5

        e762011443b09ed2eae72841497f51ce

        SHA1

        20bc3383a7697d501bb8a1fdc8c95a3f0f1798b6

        SHA256

        120bd43e4577de672d3443bfc5c9353bd3c041385b8f6b17f93144b900a78aba

        SHA512

        d026cc2e028b3e6f1e01c209b43afac0ed466eccb1b959b6df8987d7e8adfb2b201a4b1d97946153dfedd197136a7aca90e1138a275f1cb0a7c10a7732abb24f

        Download Submit

      • memory/1244-2-0x00000000050E0000-0x0000000005957000-memory.dmp

        Filesize

        8.5MB

        Download

      • memory/1244-3-0x0000000000400000-0x0000000000C91000-memory.dmp

        Filesize

        8.6MB

        Download

      • memory/1244-6-0x00000000050E0000-0x0000000005957000-memory.dmp

        Filesize

        8.5MB

        Download

      • memory/1244-4-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/1244-7-0x0000000000400000-0x0000000000C91000-memory.dmp

        Filesize

        8.6MB

        Download

      • memory/1244-1-0x0000000003440000-0x0000000003837000-memory.dmp

        Filesize

        4.0MB

        Download

      • memory/2316-28-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-25-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-20-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-21-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-22-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-23-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-24-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-33-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-26-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-27-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-32-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-29-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-30-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/2316-31-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/4156-8-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download

      • memory/4156-14-0x0000000000400000-0x0000000002FFC000-memory.dmp

        Filesize

        44.0MB

        Download