Disclosure context

About IMNCrew

IMNCrew is a recently emerged ransomware group first observed in May 2025, operating with apparent financial motivations based on their targeting patterns and victim selection. The group's origin and affiliations remain unclear due to limited public documentation, though their geographic targeting suggests potential international operations with no confirmed ties to established ransomware families or known state-sponsored actors. Based on available intelligence, IMNCrew appears to employ traditional ransomware deployment methods targeting organizations across multiple sectors, though specific technical details regarding their initial access vectors, encryption implementations, or data exfiltration capabilities have not been publicly documented by major security researchers or government agencies. The group has compromised approximately 12 known victims primarily across the United States, Sweden, Canada, Mexico, and Indonesia, with notable focus on consumer services, healthcare, financial services, and technology sectors. IMNCrew appears to remain active as of their recent emergence, though comprehensive threat intelligence regarding their operations, infrastructure, and specific attack methodologies requires further documentation from established security research organizations. The group has been linked to 12 public disclosures across our corpus. First observed on a leak site on May 5, 2025; most recent post September 16, 2025. The operation is currently inactive.

Also tracked as: imn crew.

Timeline of this disclosure

May 5, 2025Derp.org listed by IMNCrewon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 396 disclosures indexed across all operators we track. Geographically, Derp.org is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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Derp.org

Claimed by IMNCrew · listed 1 year ago

12m

Age

since listed · data leaked

Status timeline

Listed
May 5, 2025
Data leaked

At a glance

Group: IMNCrew
Status: Data leaked
Country: United States
Sector: Consumer Services
Listed on leak site: May 5, 2025

What the group claims

We’re the Denver Employees Retirement Plan (DERP). Your partner in building, planning, and living a secure retirement future while serving the city you love. DERP was established January 1, 1963, to provide a defined benefit plan for eligible City and County of Denver employees in the Career Service, certain employees of the Denver Health and Hospital Authority, and DERP staff. We provide a monthly DERP Pension Benefit payment to more than 10,800 retirees and beneficiaries, and are an essential element of the future financial security for almost 10,000 active members.

Sources

Victim siteDerp.org
Leak posthttp://imncrewwfkbjkhr2oylerfm5qtbzfphhmpcfag43xc2kfgvluqtlgoid.onion

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.