Ransomware Intelligence Report – Variant: “.cryptedpay” Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: Every successfully-encrypted file receives the suffix “.cryptedpay” (lowercase). • Renaming Convention: Original file → %FILE_NAME%.%EXT%.cryptedpay Example: QuarterlyReport.xlsx becomes QuarterlyReport.xlsx.cryptedpay. Path truncation bug: on systems with very long full-path names (>260 chars), the oldest-observed copies kept the…

Technical Breakdown File Extension & Renaming Patterns • Confirmation of File Extension: The variant appends the exactly-cased extension “cryptedopps” (8 characters, no dot separator) to every encrypted file. Example: Quarterly_Finance.xlsx becomes Quarterly_Finance.xlsxCryptedopps. • Renaming Convention: After encryption, the ransomware concatenates the word to the original filename, preserving the primary extension. It does not rearrange directory/basename…

RANSOMWARE DOSSIER: “cryptedponytestbuildxxxxxxxxxxxxxxx” Last Update: 2024-05-30 Classification: Probable PonyFork strain – experimental / test-stage ransomware TECHNICAL BREAKDOWN File Extension & Renaming Patterns • Confirmation: .crypted_pony_test_build_xxx_xxx_xxx_xxx_xxx (where xxx are random 5–7 character alphanumeric strings; observed examples: .cryptedponytestbuilda4g9b3x7d2e9m0xxxxxxxxx) • Renaming Convention: – Original filename pattern → [victim-file-name].crypted_pony_test_build_xxx… – Retains the base filename (no random prefix), only adds…

cryptedponytest_build* Ransomware Intelligence Report (variant of the CryptoMix / MIRCOP “Pony” ransomware family) Technical Breakdown 1. File Extension & Renaming Patterns Confirmed file extension added to every encrypted file: .cryptedponytestbuild (The trailing asterisk IS NOT part of the literal extension; it only signals that the variant appends an ever-increasing build number such as .cryptedponytestbuild001, .002,…

Crypted / Marztone Ransomware File Extension: .cryptedmarztoneb@tutanotade Threat Actor e-mail: [email protected] (secondary: may use @onionmail.org) TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns • Confirmed extension The malware appends the entire string “.cryptedmarztoneb@tutanotade” (lower-case) to every encrypted file, after preserving the original extension, e.g.: 2023-Q4-sales.xlsx.crypted_marztoneb@tutanota_de • Renaming convention Deletes local Volume Shadow Copies (vssadmin, wmic).…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: crypted_file (note the underscore; some victims drop the period and report simply “crypted_file”) is the exact file extension appended following the original extension. Example: QuarterlyReport.xlsx.crypted_file Renaming Convention: The malware preserves the full original filename and appends “.crypted_file” to the very end. Directory names…

Below is a practical, up-to-date dossier on the ransomware strain identified by the encrypted file extension pattern “.crypted_doebnank@*”. Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are appended with “.crypted_doebnank@*username*” – the final star-portion is a pseudorandom string that often contains the workstation name or a 6-digit UID (e.g.,report.xlsx.crypted_doebnank@DESKTOP-AB12`) Renaming…

CryptedBizarrio@pay4mein Ransomware Resource Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The malware appends .crypted_bizarrio@pay4me_in (lowercase) to every encrypted file. Typical before–after example: Annual_Report_2023.xlsx → Annual_Report_2023.xlsx.crypted_bizarrio@pay4me_in Renaming Convention: The ransomware retains the original file name in place, then concatenates the extension directly after the old extension. It does not prepend a…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: crypted034 Renaming Convention: • Original filename → <OriginalName>.crypted034 • Files in the same location receive a deterministic prefix if encryption is re-run, e.g., copy_of_<OriginalName>.crypted034 • Folders themselves are not renamed, but a ransom note (!_HOW_RECOVER_FILES_!.txt) is dropped in each directory and on the…

Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: The current wave of the ransomware family carried by Crypted000007 always appends .crypted000007 (lower-case, 14 characters) to every encrypted file. • Renaming Convention: Original file remains in place. A duplicate, encrypted copy is produced with the original file-name plus exactly .crypted000007. No…