Overview

overview

10

Static

static

3

a61e41bf23...18.exe

windows7-x64

10

a61e41bf23...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    18/08/2024, 08:45

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General

  • Target

    a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe

  • Size

    148KB

  • MD5

    a61e41bf23d358c06b49ed609769b908

  • SHA1

    d217a18a4f87562d2bc9e944a4c4c76284b06c3b

  • SHA256

    0ec1d093cfdeffaef6247a6afaf4bc0429a1d9e2ea3319390cff7b1915f9b73c

  • SHA512

    2053197f329b53bcef1be7ac9175926ba57a5cc9c40a010eefab036fa8203df14bf4c9acfdddf058eb9d259bd73919544b93c5345249e2d9e0ec91fb3838fdfb

  • SSDEEP

    3072:LoixrduqW9Goin4lZoD9d16zVfMZ2KKNRdTaB:0W5jOA96xrRd

Score
10/10
metasploitbackdoordiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

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

    trojanbackdoormetasploit
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 3 TTPs 8 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
    evasion
  • Modifies Windows Firewall 2 TTPs 5 IoCs
    evasion
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 5 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 15 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 7 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
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a61e41bf23d358c06b49ed609769b908_JaffaCakes118.exe"
    1⤵
    • Looks for VMWare Tools registry key
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1668
  • C:\Windows\Fonts\wmsncs.exe
    "C:\Windows\Fonts\wmsncs.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies firewall policy service
    • Modifies security service
    • Windows security bypass
    • Boot or Logon Autostart Execution: Active Setup
    • Looks for VMWare Tools registry key
    • Deletes itself
    • Executes dropped EXE
    • Windows security modification
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 1013 BS
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2756
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 8080 PORT1
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2764
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 8081 PORT2
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2596
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2444
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:2572

Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Active Setup

        1
        T1547.014

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Create or Modify System Process

        3
        T1543

        Windows Service

        3
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Privilege Escalation

        Boot or Logon Autostart Execution

        3
        T1547

        Active Setup

        1
        T1547.014

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Create or Modify System Process

        3
        T1543

        Windows Service

        3
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Defense Evasion

        Impair Defenses

        4
        T1562

        Disable or Modify System Firewall

        2
        T1562.004

        Disable or Modify Tools

        2
        T1562.001

        Modify Registry

        7
        T1112

        Virtualization/Sandbox Evasion

        1
        T1497

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        1
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Virtualization/Sandbox Evasion

        1
        T1497

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        • C:\Windows\Fonts\wmsncs.exe
          Filesize

          148KB

          MD5

          a61e41bf23d358c06b49ed609769b908

          SHA1

          d217a18a4f87562d2bc9e944a4c4c76284b06c3b

          SHA256

          0ec1d093cfdeffaef6247a6afaf4bc0429a1d9e2ea3319390cff7b1915f9b73c

          SHA512

          2053197f329b53bcef1be7ac9175926ba57a5cc9c40a010eefab036fa8203df14bf4c9acfdddf058eb9d259bd73919544b93c5345249e2d9e0ec91fb3838fdfb

          Download Submit

        • memory/1668-8-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/1668-0-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/1668-1-0x00000000001F0000-0x00000000001F2000-memory.dmp

          Filesize

          8KB

          Download

        • memory/2884-25-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-6-0x00000000002A0000-0x00000000002A2000-memory.dmp

          Filesize

          8KB

          Download

        • memory/2884-5-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-38-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-48-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-58-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-71-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-82-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-115-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-125-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download

        • memory/2884-158-0x0000000000400000-0x0000000000636000-memory.dmp

          Filesize

          2.2MB

          Download