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Overview

overview

10

Static

static

1

JaffaCakes...41.exe

windows7-x64

10

JaffaCakes...41.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • 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
    22/12/2024, 20:21

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General

  • Target

    JaffaCakes118_f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941.exe

  • Size

    4.4MB

  • MD5

    41fd80fae426de0023bdd5db53a816b6

  • SHA1

    a348dc176ee199f56169c5a6854136350b2df8fd

  • SHA256

    f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941

  • SHA512

    81fd10da0ba1d6e20816a426fea07bffcfef7d5121f9260298d144d0901756357e3b404a1d875d3c0dc41b098adc98d85959a405c236d514af4ad3111f0745d1

  • SSDEEP

    98304:f4T4ULDslOq137YXJS8oxVLIHIg+M0F/Y7/G6nqH9vw1/:f40UXslVUJK3EHIg+3A4vw/

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
  • 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
  • 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
  • GoLang User-Agent 4 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • 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 4 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_f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2112
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941.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
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3116
      • 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:1444
        • 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:4528
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /51-51
        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:4064
        • 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:3620
        • 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:4948

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

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

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

    4.4MB

    MD5

    41fd80fae426de0023bdd5db53a816b6

    SHA1

    a348dc176ee199f56169c5a6854136350b2df8fd

    SHA256

    f61c08da7ac40b6b337b368cfe021ec71cb5ae8902073fc7f7f6d4b458e6d941

    SHA512

    81fd10da0ba1d6e20816a426fea07bffcfef7d5121f9260298d144d0901756357e3b404a1d875d3c0dc41b098adc98d85959a405c236d514af4ad3111f0745d1

    Download Submit

  • memory/2112-2-0x00000000037A0000-0x00000000040C7000-memory.dmp

    Filesize

    9.2MB

    Download

  • memory/2112-3-0x0000000000400000-0x0000000000D42000-memory.dmp

    Filesize

    9.3MB

    Download

  • memory/2112-6-0x00000000037A0000-0x00000000040C7000-memory.dmp

    Filesize

    9.2MB

    Download

  • memory/2112-7-0x0000000000400000-0x0000000000D42000-memory.dmp

    Filesize

    9.3MB

    Download

  • memory/2112-4-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/2112-1-0x0000000003350000-0x0000000003795000-memory.dmp

    Filesize

    4.3MB

    Download

  • memory/3116-8-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/3116-12-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-22-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-27-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-15-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-23-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-24-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-25-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-26-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-21-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-28-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-29-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-30-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-31-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-32-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download

  • memory/4064-33-0x0000000000400000-0x0000000002F73000-memory.dmp

    Filesize

    43.4MB

    Download