Overview

overview

10

Static

static

1

JaffaCakes...7f.exe

windows7-x64

10

JaffaCakes...7f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    141s
  • 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, 00:35

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    JaffaCakes118_2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f.exe
  • Size 4.3MB
  • Sample241230-axd7rasjar
  • SHA256 2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
gluptebametasploitbackdoordiscoverydropperevasionloaderpersistenceprivilege_escalationrootkittrojan

Malware Config

Extracted

Family

  • metasploit

Version

  • windows/single_exec

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 21 IoCs
  • MetaSploit

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

    trojanbackdoormetasploit
  • Metasploit family
    metasploit
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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
  • 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.

    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
  • 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 1 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_2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1384
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f.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:5088
      • 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:1884
        • 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:860
      • 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:5068
        • 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:4224
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1276
          • 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:3308

    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

          Web Service

          1
          T1102

          Exfiltration

          Impact

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          injector.exe
          • Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
          • Size 281KB
          • SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          csrss.exe
          • Path C:\Windows\rss\csrss.exe
          • Size 4.3MB
          • SHA256 2d5a63de6f78ddc5b2ff6136f9eefdc37ec62e3971391b9030203e52be8c7b7f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          memory/1384-2-0x0000000004310000-0x0000000004BB2000-memory.dmp
          Download

          memory/1384-3-0x0000000000400000-0x0000000000CBD000-memory.dmp
          Download

          memory/1384-4-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/1384-6-0x0000000000400000-0x0000000000CBD000-memory.dmp
          Download

          memory/1384-5-0x0000000004310000-0x0000000004BB2000-memory.dmp
          Download

          memory/1384-1-0x0000000003EF0000-0x0000000004304000-memory.dmp
          Download

          memory/5068-28-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-27-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-34-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-17-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-33-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-23-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-24-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-25-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-26-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-32-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-31-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-29-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5068-30-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5088-8-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5088-10-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5088-9-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download

          memory/5088-14-0x0000000000400000-0x0000000001FFF000-memory.dmp
          Download