Overview

overview

10

Static

static

1

JaffaCakes...76.exe

windows7-x64

10

JaffaCakes...76.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 18:46

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General

  • Target

    JaffaCakes118_8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676.exe

  • Size

    4.1MB

  • MD5

    9e09ff63f1a65134d3ceb8ea05ad1769

  • SHA1

    dde7592b1c56727148564ccdbe33a71e68638d26

  • SHA256

    8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676

  • SHA512

    d10fea6871fa9ad6f4675ceacd54119aca5195f75e8231be35d0cea415a558979ea2ec32170bf95629992735499a618831060f249dbd4dbfffe299348d9877ed

  • SSDEEP

    98304:d6yiaia84ghKzQTPsciMDoXk/t1v6LofGEXYEpXV/HMfR9V6fNn:kyr8piEsU/t1iqHPSZ9V6fR

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
  • 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_8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2684
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676.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:2496
      • 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:2768
        • 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:4712
      • 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:2508
        • 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:2400
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3552
          • 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:2460
          • 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:704

    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

            9e09ff63f1a65134d3ceb8ea05ad1769

            SHA1

            dde7592b1c56727148564ccdbe33a71e68638d26

            SHA256

            8d888345b9d773aec279883b0fab48fd14332fa65164bd6e8d64a4b7770f3676

            SHA512

            d10fea6871fa9ad6f4675ceacd54119aca5195f75e8231be35d0cea415a558979ea2ec32170bf95629992735499a618831060f249dbd4dbfffe299348d9877ed

            Download Submit

          • memory/2496-8-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2496-15-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2496-9-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2496-7-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-22-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-25-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-34-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-33-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-32-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-21-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-31-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-23-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-24-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-30-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-26-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-27-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-28-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2508-29-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2684-6-0x0000000002D90000-0x0000000003607000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/2684-1-0x00000000029A0000-0x0000000002D8A000-memory.dmp

            Filesize

            3.9MB

            Download

          • memory/2684-2-0x0000000002D90000-0x0000000003607000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/2684-3-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download

          • memory/2684-4-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

            Download