Overview

overview

10

Static

static

1

JaffaCakes...c2.exe

windows7-x64

10

JaffaCakes...c2.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 16:32

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General

  • Target

    JaffaCakes118_015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2.exe

  • Size

    4.1MB

  • MD5

    54e1cef7097a29358822b85a3c35dd62

  • SHA1

    cdf79dbac4c973ba549f6c175649b87d5e2cef72

  • SHA256

    015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2

  • SHA512

    210cd78b88a350f3c6b862fed1685fc6dc5260e1565af6398a8cf1113402edf36ba259e6d7278f7a39ff18b6711c8fdc54c81af9b4889641ee34a8674fa1f141

  • SSDEEP

    98304:O1wLH1Zk4Yt7+HcJJlysx1qxoewIoOJZS0JwyGwoSzP8c4Uk:OurkUHCJlysXzewIot0Jw1Ltcxk

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 11 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
  • Program crash 2 IoCs
  • 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_015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3948
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2.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: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:2196
        • 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:2304
      • 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:4572
        • 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:4436
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4748
          • 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:4416
          • 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:1364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 880
          3⤵
          • Program crash
          PID:3896
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3948 -s 936
        2⤵
        • Program crash
        PID:744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3948 -ip 3948
      1⤵
        PID:532
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1324 -ip 1324
        1⤵
          PID:2792

        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

          54e1cef7097a29358822b85a3c35dd62

          SHA1

          cdf79dbac4c973ba549f6c175649b87d5e2cef72

          SHA256

          015d610259b21e10007c9e8ed6792f870e2038362e287edf840240f240b32dc2

          SHA512

          210cd78b88a350f3c6b862fed1685fc6dc5260e1565af6398a8cf1113402edf36ba259e6d7278f7a39ff18b6711c8fdc54c81af9b4889641ee34a8674fa1f141

          Download Submit

        • memory/1324-8-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/1324-7-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/1324-14-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/3948-4-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/3948-5-0x0000000002F40000-0x00000000037B6000-memory.dmp

          Filesize

          8.5MB

          Download

        • memory/3948-1-0x0000000002B40000-0x0000000002F37000-memory.dmp

          Filesize

          4.0MB

          Download

        • memory/3948-3-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/3948-2-0x0000000002F40000-0x00000000037B6000-memory.dmp

          Filesize

          8.5MB

          Download

        • memory/4572-21-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/4572-22-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/4572-23-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/4572-24-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/4572-25-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download