{
  "family": "jobcrypter",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\nJobCrypter is a destructive Ransomware family designed to extort financial payment from victims by encrypting their critical data. It is known for its relatively crude implementation but devastating impact, prioritizing rapid, widespread encryption of local and network-mapped drives to cause maximum operational disruption. It often disguises its initial payload as a job application, resume, or HR-related document.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nJobCrypter is typically distributed via highly targeted spear-phishing campaigns directed at Human Resources (HR) departments or hiring managers. The emails contain malicious attachments (often ZIP files containing disguised executables, or Word documents with malicious macros) masquerading as resumes (e.g., `resume_applicant_name.exe` or `CV.docm`).\n\nUpon execution, JobCrypter initiates a destructive attack sequence:\n<ul>\n<li><strong>Volume Shadow Copy Deletion:</strong> Before encryption begins, the ransomware executes commands (e.g., `vssadmin.exe Delete Shadows /All /Quiet`) to destroy local system backups and recovery points, ensuring the victim cannot easily restore their files.</li>\n<li><strong>Rapid Encryption:</strong> It scans the hard drive and any accessible network shares for specific file extensions (documents, databases, images). It encrypts these files using strong cryptography and typically appends a unique extension (e.g., `.jobcrypt`) to the affected files.</li>\n<li><strong>Ransom Note Generation:</strong> A text or HTML file is dropped onto the desktop and in encrypted directories. This note provides instructions on how to purchase cryptocurrency and contact the attackers (often via an anonymous email address) to obtain the decryption key.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nA JobCrypter infection is a critical security incident resulting in immediate and often catastrophic loss of data availability. The targeted nature of the phishing campaigns makes HR and recruitment teams highly susceptible. The destruction of local backups means that without secure, offline backups, organizations face massive data loss.\n\n<h3>Incident Response and Remediation</h3>\n<ul>\n<li><strong>Immediate Network Severance:</strong> The infected endpoint must be immediately disconnected from the corporate network, Wi-Fi, and any VPNs to prevent the ransomware from propagating to mapped network drives and cloud storage sync folders.</li>\n<li><strong>Preserve Memory (Do Not Reboot):</strong> If possible, capture a forensic image of the system's RAM before powering it down, as the decryption key might temporarily reside in volatile memory.</li>\n<li><strong>Eradication and Restoration:</strong> Paying the ransom is strongly discouraged. The only reliable remediation strategy is a complete bare-metal wipe of the infected systems and a full restoration from secure, air-gapped backups.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Ransom.JobCrypter",
    "Trojan-Ransom.Win32.JobCrypter",
    "Win32/Filecoder.JobCrypter"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1566.001",
    "T1486",
    "T1490"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T07:01:27Z",
  "type": "Ransomware",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}