{
  "family": "malmaker",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\n\"Malmaker\" (often flagged as HackTool.Malmaker or Riskware.MalwareBuilder) is not a specific malware family, but a detection classification for software utilities explicitly designed to generate, compile, or obfuscate customized malware payloads. These \"builders\" are frequently sold on cybercrime forums (Malware-as-a-Service) and allow even unskilled attackers to rapidly generate sophisticated trojans, ransomware, or botnet agents tailored to evade specific antivirus signatures.\n\n<h3>Technical Architecture and Capabilities</h3>\nMalmaker utilities act as the \"compilers\" of the cybercrime ecosystem. They provide a graphical user interface (GUI) or a command-line interface that allows an attacker to configure a malware payload before generating the final executable.\n\nKey features of a Malmaker utility include:\n<ul>\n<li><strong>Payload Customization:</strong> The attacker can input their specific Command-and-Control (C2) IP address, configure persistence mechanisms (e.g., choose which registry key to modify), and select which features (like keylogging or screen capture) to enable in the generated trojan.</li>\n<li><strong>Built-in Obfuscation:</strong> Advanced builders include crypters and packers. These algorithms encrypt the core malicious code, ensuring the generated executable has a unique cryptographic hash and bypasses static antivirus signatures.</li>\n<li><strong>Icon and Extension Spoofing:</strong> The builder allows the attacker to disguise the final executable by applying the icon of a legitimate program (like MS Word or Adobe Reader) and utilizing techniques (like Right-to-Left Override) to spoof the file extension.</li>\n</ul>\n\n<h3>Threat Impact</h3>\nThe detection of a Malmaker utility on a corporate endpoint is a catastrophic security event. It definitively indicates that the compromised machine is being used by a threat actor (or a malicious insider) to actively develop and compile malware, likely to launch attacks against the internal network or to use the corporate infrastructure as a staging ground for external attacks.\n\n<h3>Incident Response and Advanced Analysis</h3>\n<ul>\n<li><strong>Immediate Network Isolation:</strong> Isolate the endpoint immediately. The presence of a builder implies the user has deep malicious intent or the machine is fully controlled by an external attacker.</li>\n<li><strong>Forensic Code Extraction:</strong> Do not simply delete the builder. Forensic analysts must extract the configuration files associated with the Malmaker utility to understand what specific malware payloads were being generated and to identify the C2 infrastructure the attacker was configuring.</li>\n<li><strong>Enterprise-Wide Sweeps:</strong> If a builder generated a custom trojan, that trojan was likely deployed within the environment. Use the IOCs extracted from the builder to perform a massive sweep of the entire network to locate the deployed payloads.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "HackTool.Malmaker",
    "Riskware.MalwareBuilder",
    "Trojan.Builder"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1587.001",
    "T1027",
    "T1566.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T16:59:16Z",
  "type": "HackTool / Malware Builder",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}