Overview

overview

10

Static

static

1

JaffaCakes...cc.exe

windows7-x64

10

JaffaCakes...cc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/12/2024, 19:33

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General

  • Target

    JaffaCakes118_ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc.exe

  • Size

    4.0MB

  • MD5

    5746aa0b23854f087b5d9afe8727c03b

  • SHA1

    494eacd7482616ce7542915b32f86d4d7378dd80

  • SHA256

    ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc

  • SHA512

    46fcf53a3c267bc325b8dc07eae80488379ce5d95c59cb1b256d877d3690b5032da88576623509b7d034e619194c8aa12add3e36016e0e78fb43f225e1711d29

  • SSDEEP

    98304:W/ac2q4sVl0Nx/mpVaU0ZY/A+B8imyys33/B8DJDtkXxu1dfclXb:W/aQ4sV+z+3iY/Hmyyopg6sLU1

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
  • 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 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_ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2216
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc.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:1776
      • 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:4548
        • 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:1528
      • 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
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2056
        • 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:3476
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4616
          • 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:4668
          • 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:4276

    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

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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

            4.0MB

            MD5

            5746aa0b23854f087b5d9afe8727c03b

            SHA1

            494eacd7482616ce7542915b32f86d4d7378dd80

            SHA256

            ea95234e9a60313007d7b9bcbd83ff90515ac9059a3106967b931fce83bfebcc

            SHA512

            46fcf53a3c267bc325b8dc07eae80488379ce5d95c59cb1b256d877d3690b5032da88576623509b7d034e619194c8aa12add3e36016e0e78fb43f225e1711d29

            Download Submit

          • memory/1776-8-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/1776-13-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/1776-9-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-23-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-25-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-34-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-33-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-32-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-21-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-22-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-31-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-24-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-30-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-26-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-27-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-28-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2056-29-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2216-6-0x0000000003060000-0x00000000038D6000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/2216-1-0x0000000002C70000-0x000000000305C000-memory.dmp

            Filesize

            3.9MB

            Download

          • memory/2216-2-0x0000000003060000-0x00000000038D6000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/2216-3-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2216-5-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download