Iranian-Nexus Cyberespionage Against Oman Government
Score: 9/10

Iranian-Nexus Cyberespionage Against Oman Government

An Iranian-nexus threat actor targeted 12 Omani government ministries using a custom C2 framework, ProxyShell exploits, and DotNetNuke vulnerabilities to exfiltrate judicial and citizen data.

Executive Summary

A major cyberespionage campaign attributed to Iranian-nexus threat actors has compromised at least 12 government ministries in Oman, with the Ministry of Justice and Legal Affairs (MJLA) serving as a primary target. The operation, characterized by the exposure of an open C2 directory, resulted in the theft of over 26,000 citizen records, judicial case data, and sensitive system registry hives. Evidence suggests the actors utilized a custom Python-based C2 framework and a suite of over 50 scripts targeting various platforms.

The attack chain involved exploiting known vulnerabilities, such as ProxyShell (CVE-2021-34473) and a DotNetNuke SSRF flaw (CVE-2025-32372), to deploy custom webshells like 'hc2.aspx' and 'health_check_t.aspx'. Once inside, the operators performed methodical database enumeration and credential harvesting, specifically targeting national identity records and administrative accounts. Infrastructure analysis revealed a 'dubai-#' cluster of VPS servers, some of which hosted spoofed Iranian diaspora media, further aligning the activity with Iranian state-sponsored interests.

This campaign underscores the persistent threat posed by regional adversaries to Middle Eastern government infrastructure. The loss of judicial and identity data presents a significant long-term risk to Omani national security and citizen privacy. Organizations in the region should immediately audit for DotNetNuke and Exchange vulnerabilities and monitor for the specific lateral movement and persistence techniques identified in this report.

Key Details

Threat Name

Iranian-Nexus Cyberespionage Against Oman Government

Affects

Microsoft Exchange Server, Royal Fleet of Oman mail server, Tax Authority of Oman mail server, DotNetNuke (DNN) before 9.13.8

Adversary

APT34 Other Adversaries and Aliases: MuddyWater

Malware/Tools

Chisel, GodPotato, hc2.aspx, health_check_t.aspx, new_beacon.ps1

Report Score

9out of 10
Quality Score
Excellent
IOC Quality9
TTP Details9
Detection Guidance7
Enterprise Relevance9
Clarity & Structure9
Technical Depth8

Sources