Overview

overview

10

Static

static

1

JaffaCakes...3b.exe

windows7-x64

10

JaffaCakes...3b.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
    25-12-2024 19:50

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General

  • Target

    JaffaCakes118_f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b.exe

  • Size

    4.3MB

  • MD5

    95e026cf7eb6c4a23dd5c6a8c827c365

  • SHA1

    da758754c09423272f7f9b8e0e85a70b9bb9ccb2

  • SHA256

    f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b

  • SHA512

    ed842eb84bdc742a490058b854d0259e7454519bb83db0569652e79435341fd7dbf1ce11333d64c4bdad3b35192cd7932d98435fae10a78b8749779e89c6b5eb

  • SSDEEP

    49152:VSKr0OuyyalJlVpxkOXerIymogdY7T/cSwEfdBCVR9Dx9DdM982FKwwTb4eQETnj:VDmmVIR0+g6bdBUDL5M97eELCMNuIOL

Score
10/10
gluptebametasploitbackdoordiscoverydropperevasionloaderpersistenceprivilege_escalationrootkittrojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba family
    glupteba
  • Glupteba payload 20 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    trojanbackdoormetasploit
  • Metasploit family
    metasploit
  • Modifies Windows Firewall 2 TTPs 1 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
  • 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 1 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 1 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_f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4736
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b.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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1800
      • 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:1712
        • 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:4280
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /301-301
        3⤵
        • Executes dropped EXE
        • 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:1764
        • 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:3992
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4592
          • 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:4816
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 924
          3⤵
          • Program crash
          PID:3840
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1800 -ip 1800
      1⤵
        PID:3544

      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

        4.3MB

        MD5

        95e026cf7eb6c4a23dd5c6a8c827c365

        SHA1

        da758754c09423272f7f9b8e0e85a70b9bb9ccb2

        SHA256

        f5f4db2983c788cbceceba03093e82b000f5cdcf36accc873ac69d195068263b

        SHA512

        ed842eb84bdc742a490058b854d0259e7454519bb83db0569652e79435341fd7dbf1ce11333d64c4bdad3b35192cd7932d98435fae10a78b8749779e89c6b5eb

        Download Submit

      • memory/1764-29-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-34-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-24-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-23-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-28-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-33-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-27-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-16-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-25-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-22-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-30-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-32-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-31-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1764-26-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1800-14-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/1800-8-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download

      • memory/4736-6-0x0000000000400000-0x0000000000CBD000-memory.dmp

        Filesize

        8.7MB

        Download

      • memory/4736-1-0x0000000004D90000-0x00000000051A3000-memory.dmp

        Filesize

        4.1MB

        Download

      • memory/4736-2-0x00000000051B0000-0x0000000005A52000-memory.dmp

        Filesize

        8.6MB

        Download

      • memory/4736-5-0x00000000051B0000-0x0000000005A52000-memory.dmp

        Filesize

        8.6MB

        Download

      • memory/4736-3-0x0000000000400000-0x0000000000CBD000-memory.dmp

        Filesize

        8.7MB

        Download

      • memory/4736-4-0x0000000000400000-0x0000000002F47000-memory.dmp

        Filesize

        43.3MB

        Download