DisclosureLens
GLOBALMalwareConstructionConstructionRansomwareSarcomaRansom DemandedActor NamedMedium

DMG Contractors

bd_23265163d185fc45 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Jun 4, 2025

To disclose

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for DMG Contractors

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Sarcoma on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: ConstructionDiscovered: 2025-06-04

Source: Ransomware.live

Post text · scraped from the leak site

DMG Contractors DMG Contractors, established in 1987, specializes in providing services exclusively for the multi-family industry, including capital improvements, major renovations, and insurance restoration projects across the United States. With over 25 years of experience, the company has developed a skilled workforce and efficient project management strategies to complete projects on time and within budget. Their services range from exterior renovations such as siding replacements and full exterior painting to interior renovations like kitchen and bathroom updates. DMG Contractors aims to meet the needs of apartment communities while minimizing disruption to residents and staff.Geo: USA - Leak size: 113 GB Archive - Contains: Files

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jun 4, 2025

Claim posted

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

Compliance clock

Not assessable

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
Leak SiteJun 4 · first · this page

Pattern: first filing Jun 4, last Jun 24 (IN) — a 20-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.

About this groupFirst seen 2024-07-09

sarcoma

According to ransomware.live, Sarcoma is a ransomware group that debuted in October 2024, immediately ranking among the top three most active groups globally and surpassing 116 documented victims by mid-2025, targeting mid-market companies across manufacturing, retail, healthcare, legal, and business services with roughly 50% of victims in the United States.

141 victims claimed globally141 tracked hereFull profile →