Overview

overview

10

Static

static

1

JaffaCakes...ef.exe

windows7-x64

10

JaffaCakes...ef.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-12-2024 00:10

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General

  • Target

    JaffaCakes118_2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef.exe

  • Size

    4.1MB

  • MD5

    94756556c369e76c3b0a7ad3fef6a12e

  • SHA1

    bcc4dba9766b924751e24a36ed9dd204ea4c6aaa

  • SHA256

    2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef

  • SHA512

    797eecd596949adb8cddb828d6718ad78a4dedb26e83b78dc0c03f7d31c18c949141ca5a4821fb49f3188c4b75ffc19e4b8514c3dabee792057680c15f041ef4

  • SSDEEP

    98304:K3Akjec3CT7GnqEMmTx8Gw/s/DmhJFa/nEZL:GRe6ldMmT2G+s/DmXFa/nEV

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 19 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
  • 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_2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2428
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef.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:1216
      • 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:3124
        • 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:216
      • 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:2412
        • 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:2352
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:404
          • 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:992
          • 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:3196
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1216 -s 772
          3⤵
          • Program crash
          PID:920
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 672
        2⤵
        • Program crash
        PID:3876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2428 -ip 2428
      1⤵
        PID:2936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1216 -ip 1216
        1⤵
          PID:2168

        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

          4.1MB

          MD5

          94756556c369e76c3b0a7ad3fef6a12e

          SHA1

          bcc4dba9766b924751e24a36ed9dd204ea4c6aaa

          SHA256

          2a678b75ac395f81d1344c3621ec081784fba1a7ffbd76036f81a0dfce0969ef

          SHA512

          797eecd596949adb8cddb828d6718ad78a4dedb26e83b78dc0c03f7d31c18c949141ca5a4821fb49f3188c4b75ffc19e4b8514c3dabee792057680c15f041ef4

          Download Submit

        • memory/1216-8-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/1216-14-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-25-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-27-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-32-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-31-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-30-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-29-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-20-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-21-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-22-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-23-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-24-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-28-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2412-26-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2428-6-0x0000000005030000-0x00000000058A7000-memory.dmp

          Filesize

          8.5MB

          Download

        • memory/2428-1-0x0000000003290000-0x0000000003683000-memory.dmp

          Filesize

          3.9MB

          Download

        • memory/2428-2-0x0000000005030000-0x00000000058A7000-memory.dmp

          Filesize

          8.5MB

          Download

        • memory/2428-3-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download

        • memory/2428-5-0x0000000000400000-0x0000000002FFB000-memory.dmp

          Filesize

          44.0MB

          Download

        • memory/2428-7-0x0000000000400000-0x0000000000C91000-memory.dmp

          Filesize

          8.6MB

          Download