Tactical Writeup: Uber Infrastructure Breach (Lapsus$ Emulation)

Document ID: SEC-CORP-RED-2026-001
Classification: ELITE RED TEAM REPORT
Operation Name: Project Lapsus-Uber
Objective: End-to-end compromise of corporate vault infrastructure.

1. Executive Summary

This engagement successfully emulated the Tactics, Techniques, and Procedures (TTPs) of the Lapsus$ threat group against a segmented corporate environment. The attack chain leveraged human-factor vulnerabilities (MFA Fatigue), identified technical misconfigurations in internal services (Samba), and ultimately achieved full privilege escalation via the corporate Privileged Access Management (PAM) solution, resulting in the compromise of the Uber-Vault and extraction of high-value data.

2. Attack Vectors & MITRE ATT&CK Mapping

Chain of Compromise Logic

graph TD
    A["Initial Recon (T1589)"] -->|vpn_key.js| B["VPN Entry (T1133)"]
    B -->|MFA Fatigue (T1621)| C["Internal Tunnel"]
    C -->|Network Service Scanning (T1046)| D["SMB Null Session (T1039)"]
    D -->|Credentials in Files (T1552.001)| E["Admin Identity"]
    E -->|Identity Provider Access (T1550)| F["PAM Portal Control"]
    F -->|Internal Proxy Abuse| G["Uber-Vault Compromise"]
    G -->|Data from Local System (T1005)| H["FLAG EXTRACTION"]

Tactic	Technique ID	Description
Initial Access	T1133	External Remote Services (VPN)
Credential Access	T1621	Multi-Factor Authentication Request Generation
Discovery	T1046	Network Service Scanning
Lateral Movement	T1550	Use Alternate Authentication Material
Exfiltration	T1041	Exfiltration Over C2 Channel

3. Technical Phase Analysis

Phase I: External Presence & Secret Discovery

The breach began with a reconnaissance of the external authentication portal.

Artifact Analysis: A hidden module, vpn_key.js, was identified. It contained the raw cryptographic keys for the corporate OpenVPN gateway.
Result: Transport layer established.

The VPN required a hardware-backed OTP. We leveraged the “Push Bombing” technique to overwhelm the administrator.

Strategy: Automated delivery of 10+ push notifications.
Human Vulnerability: The administrator approved the 11th request to stop the recurring alerts.
Compromised Session: Account pam@ubercorp.com and its time-sensitive OTP were harvested.

Phase III: The Pivot (Internal Pillage)

Inside the 10.0.10.0/24 subnet, we pivoted to the internal 192.168.5.0/24 range.

Vulnerability identified: Host 192.168.5.10 allowed unauthenticated SMB Null Sessions.
Data found: automate.ps1 contained hardcoded Base64-encoded administrative credentials for the PAM solution.
Extraction: Decoded Username: pam@ubercorp.com and Password: qBMT2sTNA23}A23}.

Phase IV: PAM Abuse & Infrastructure Takeover

The corporate PAM (Privileged Access Management) solution at 192.168.5.12 was accessed using the stolen credentials.

Escalation: The PAM portal provided authorized “Action” menus to manage backend servers.
Actionable Intelligence: We utilized the PAM web terminal to initiate a session directly into the Uber-Vault machine.
Bypassing Security: This method requires no secondary login for the vault itself, as the PAM provider injects the managed credentials.

4. Investigative Findings (Final Resolution)

Finding Category	Data Point
Critical Host (OS Vulnerabilities)	`192.168.5.100` (Ubuntu/OpenSSH)
SMB Misconfiguration	Anonymous Access (3 shares identified)
Leaked Infrastructure Domain	`ubercorp.com`
Reconstructed Admin Password	`qBMT2sTNA23}A23}`
Central Management IP (PAM)	`192.168.5.12`
Final Target Hostname	`Uber-Vault`
The Flag (ROOT Access)	`UB3rH@ck!S!mulat!on`

5. Tactical Risk Assessment & Impact

Threat Vector	Likelihood	Impact	Severity	Mitigation Priority
MFA Fatigue	High	High	CRITICAL	P1 (Immediate)
Hardcoded Secrets	Medium	Critical	CRITICAL	P1 (Immediate)
SMB Null Sessions	High	Low	MEDIUM	P2 (High)

Operational Impact: Successful exploitation allows for complete data exfiltration and persistent administrative access without triggering traditional perimeter defenses.

6. Strategic Hardening Recommendations

Technical Control: Transition from push notifications to Match-Number MFA or FIDO2/WebAuthn keys.
Architectural Control: Implement EAP-TLS for VPN access, relying on client certificates rather than shared keys.
Policy Control: Enforce a “Redline” secrets policy: prohibit any credentials (even obfuscated) in automation scripts.

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