Threat Advisory

DoNot APT Uses Inveigh to Harvest Credentials in Pakistan Nuclear and Energy Sectors

Threat: Malware
Threat Actor Name: DoNot APT
Threat Actor Type: APT
Targeted Region: Pakistan
Alias: APT-C-35
Targeted Sector: Energy & Utilities, Critical Infrastructure
Criticality: High
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EXECUTIVE SUMMARY:

An exposed open directory revealed a collection of scripts and executables linked to APT DoNot, also tracked as APT-C-35, in a cyber espionage operation aimed at Pakistan’s nuclear, energy, and industrial-control sectors. The material references SCADA and Modbus-related terms and appears to have been staged on a remote server for use against an internal Windows environment. The initial access vector is not established in the available material, but the recovered collection indicates a focus on strategic-sector targets and the risk of credential theft, internal reconnaissance, and lateral movement.

Once a foothold was present, the toolkit performed environment checks, confirmed command-and-control reachability, and staged additional components in a local directory. Multiple reverse-shell paths ran in parallel, using PowerShell scripts and compiled Go binaries to maintain outbound connections, while a separate implant polled over HTTP and retrieved commands from response headers. Later builds added symbol stripping and encrypted transport. Credential capture relied on poisoning local name-resolution services to collect NetNTLM hashes, with configurations run in hidden child processes and with domain or workgroup variables altered to appear legitimate. Reconnaissance scripts mapped the network, enumerated a user profile, searched for nuclear and industrial-control keywords, and tested collected or hardcoded credentials against administrative shares on nearby hosts.[/subscribe_to_unlock_form]

EXECUTIVE SUMMARY:

An exposed open directory revealed a collection of scripts and executables linked to APT DoNot, also tracked as APT-C-35, in a cyber espionage operation aimed at Pakistan’s nuclear, energy, and industrial-control sectors. The material references SCADA and Modbus-related terms and appears to have been staged on a remote server for use against an internal Windows environment. The initial access vector is not established in the available material, but the recovered collection indicates a focus on strategic-sector targets and the risk of credential theft, internal reconnaissance, and lateral movement.

Once a foothold was present, the toolkit performed environment checks, confirmed command-and-control reachability, and staged additional components in a local directory. Multiple reverse-shell paths ran in parallel, using PowerShell scripts and compiled Go binaries to maintain outbound connections, while a separate implant polled over HTTP and retrieved commands from response headers. Later builds added symbol stripping and encrypted transport. Credential capture relied on poisoning local name-resolution services to collect NetNTLM hashes, with configurations run in hidden child processes and with domain or workgroup variables altered to appear legitimate. Reconnaissance scripts mapped the network, enumerated a user profile, searched for nuclear and industrial-control keywords, and tested collected or hardcoded credentials against administrative shares on nearby hosts.[emaillocker id="1283"]

The exposed material indicates an active, iterative operation rather than a static collection, with configurations and binaries changing over several days. The targeting language points to Pakistan’s nuclear, energy, and industrial-control environment, while the infrastructure and tradecraft links support a possible connection to APT DoNot, a group associated with South Asian government and defense interests. No confirmed victim count is established, but the strategic-sector focus raises the risk of espionage against critical infrastructure. Defenders should treat exposed staging infrastructure as a useful source of operational intent and prioritize detection of local name-resolution poisoning, hidden credential-harvesting processes, and repeated reverse-shell activity.

THREAT PROFILE:

Tactic Technique Id Technique Sub-technique
Execution T1059.001 Command and Scripting Interpreter PowerShell
Defense Evasion T1036 Masquerading -
Defense Evasion T1055 Process Injection -
Credential Access T1557.001 Adversary-in-the-Middle LLMNR/NBT-NS Poisoning
Credential Access T1552.001 Credentials in Files Credentials in Files
Discovery T1083 File and Directory Discovery -
Discovery T1082 System Information Discovery -
Discovery T1012 Query Registry -
Lateral Movement T1021.002 Remote Services SMB/Windows Admin Shares
Collection T1074.001 Data Staged Local Data Staging
Command and Control T1071.001 Application Layer Protocol Web Protocols
Command and Control T1105 Ingress Tool Transfer -

REFERENCES:

The following reports contain further technical details:

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