Conti Recon And Initial Access
Stage a phishing email in user's Documents directory then open it. Next, stage and launch a malicious PDF in user's Downloads directory. The malicious PDF creates a C:\Conti directory to stage and launch a Jambi agent.

TTP Tuesday: Conti (Release 1)

Recon and Initial Access

Theme Overview

We are kicking off a new theme this week focusing on Conti ransomware. We have released some Conti TTPs previously, but plan to expand it to include an entire adversary attack from beginning to end. The Conti theme will contain the following kill-chains:

1. Recon and Initial Access (Current Release)
2. Local and Remote Discovery
3. Gain privileges and persist
4. Move to remote systems
5. Data collection and exfiltration
6. Deploy ransomware

Recon and Initial Access

Conti is considered Ransomware-as-a-Service (RaaS) and has an elaborate chain of events from initial access to execution of the ransomware. For this week, we are focusing on the initial access. Conti tends to use three methods to gain initial access; spearphishing, weak RDP credentials, and search engine promoted application installs. We are specifically focusing on spearphishing to gain initial access. In this chain, we use Pneuma agent as a stager then open both a phishing email and malicious PDF which will execute Jambi as our Conti agent moving forward.

Check it out on the Prelude chains website.

Watch a demonstration: Conti Recon & Initial Access

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Execute this chain

Download Operator (1.6.0)
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TTPs

Stage and execute Conti phishing email
Stage and launch Conti phishing payload
Stage and launch Jambi