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Thrip

Thrip is an espionage group that has targeted satellite communications, telecoms, and defense contractor companies in the U.S. and Southeast Asia. The group uses custom malware as well as "living off the land" techniques. [1]

ID: G0076
Version: 1.1
Created: 17 October 2018
Last Modified: 30 March 2020
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Enterprise Layer
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Techniques Used

Domain ID Name Use
Enterprise T1059 .001 Command and Scripting Interpreter: PowerShell

Thrip leveraged PowerShell to run commands to download payloads, traverse the compromised networks, and carry out reconnaissance.[1]
Enterprise T1048 .003 Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol

Thrip has used WinSCP to exfiltrate data from a targeted organization over FTP.[1]
Enterprise T1219 Remote Access Software

Thrip used a cloud-based remote access software called LogMeIn for their attacks.[1]

Software

ID Name References Techniques
S0261 Catchamas

[1]

 Application Window Discovery, Clipboard Data, Create or Modify System Process: Windows Service, Data Staged: Local Data Staging, Input Capture: Keylogging, Masquerading: Masquerade Task or Service, Modify Registry, Screen Capture, System Network Configuration Discovery
S0002 Mimikatz

[1]

 Access Token Manipulation: SID-History Injection, Account Manipulation, Boot or Logon Autostart Execution: Security Support Provider, Credentials from Password Stores: Credentials from Web Browsers, Credentials from Password Stores, OS Credential Dumping: LSASS Memory, OS Credential Dumping: DCSync, OS Credential Dumping: Security Account Manager, OS Credential Dumping: LSA Secrets, Rogue Domain Controller, Steal or Forge Kerberos Tickets: Silver Ticket, Steal or Forge Kerberos Tickets: Golden Ticket, Unsecured Credentials: Private Keys, Use Alternate Authentication Material: Pass the Hash, Use Alternate Authentication Material: Pass the Ticket
S0029 PsExec

Thrip used PsExec to move laterally between computers on the victim’s network.[1]

 Lateral Tool Transfer, Remote Services: SMB/Windows Admin Shares, System Services: Service Execution

References

  1. Security Response Attack Investigation Team. (2018, June 19). Thrip: Espionage Group Hits Satellite, Telecoms, and Defense Companies. Retrieved July 10, 2018.