Ransomware Deep-Dive: CRAB (.crab) A complete resource for analysts, incident-response teams, and system administrators Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: .crab (lowercase; appended directly to the last file-name token). • Typical Renaming Convention: Original: 2024-Q2-Budget.xlsx After encryption: 2024-Q2-Budget.xlsx.crab • No ransom note inserted inside the filename — ransom…

===================================================== Raas Research Report – Ransomware: craa Version 1.0 – Last update: 2024-06-27 Technical Breakdown: 1. File Extension & Renaming Patterns • Confirmation of File Extension: craa (all lower-case, three letters). • Renaming Convention: – Every encrypted file receives the APPENDED suffix .craa (no dot-prefix before the original extension). – Files keep the rest of…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: cr1ptt0r Renaming Convention: Files are reshuffled into exactly eight hexadecimal characters (e.g., 4d7f82a9.bin, 0e3fa55b.bin). The original file name and extension are never appended—only the 8-byte hex token and the .cr1ptt0r suffix. Directory structure is otherwise preserved, making it very hard to map encrypted…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: cr1 Renaming Convention: Each encrypted file is renamed in the format original_filename.ext[random-8-hex].cr1. For example: Project_Q4.xlsx → Project_Q4.xlsx[3B9A7C5F].cr1 A simple README file Read_Me_Decrypt.txt is dropped into every folder containing the ransom demands. 2. Detection & Outbreak Timeline Approximate Start Date/Period: First public sightings began…

======================================================== [NOTE TO READER] This guide refers to CR020801 Ransomware, a standalone family (also tracked under Snatch and Snatch_Crypt aliases) that renames victims’ files to .cr020801 and is NOT to be confused with early .cr2 RAW photo files. Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .cr020801 Renaming Convention: Original name…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware consistently appends .cqxgpmknr to every encrypted file. Example: Quarterly_Report.xlsx.cqxgpmknr, Family_Photo.jpg.cqxgpmknr. Renaming Convention: The malware does not add any prefix or email addresses—only the six-lowercase-letter suffix—so a file originally named Document.docx becomes Document.docx.cqxgpmknr. Directory names remain unchanged. 2. Detection & Outbreak Timeline…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware cqscsfy appends the literal string “.cqscsfy” (without quotes) as a secondary extension placed immediately after the original filename and its native extension. Example: Quarterly_Financials.xlsx becomes Quarterly_Financials.xlsx.cqscsfy. Renaming Convention: Pattern: <original file name>.<original extension>.cqscsfy Subdirectory marker: Victims frequently find a new file…

cqquh Ransomware – Technical & Recovery Guide (for the file-extension {{ $json.extension }} == .cqquh) 📊 Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .cqquh (including the leading dot) is appended after the original file extension, e.g. Proposal.docx becomes Proposal.docx.cqquh. – Files found without .cqquh at the end are untouched by…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: “.CPYT” Renaming Convention: – Files are renamed in the pattern: <original_filename>.cPYt (the extension’s letters are mixed-case, usually lower-case .cPYt rather than .CPYT). – Folders are left untouched; the damage is file-level rather than folder-level. – Some strains also prepend a 12-character pseudorandom hex…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: cprt Every encrypted file receives the suffix .cprt (e.g., Report.xlsx.cprt, Database.bak.cprt). Renaming Convention: The ransomware performs an in-place rename—file-name and existing extension are preserved and only .cprt is appended. No base-64 identifiers or e-mail addresses are inserted, which makes visual identification faster but…