General

  • Target

    2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk

  • Size

    170KB

  • Sample

    240413-egxflseb7y

  • MD5

    7f193964270dc3d207e4413890c95ab2

  • SHA1

    e3b1b6adf8292e91234a455397d6496b5d92e322

  • SHA256

    29824133432b929766e8287ad658b75ebfef08d62341c0bb338f239c6f114932

  • SHA512

    16210a0ee45b1ea20921ea967e44ad569427960c8299840398c8024c7ef88d18ff4aaf18a6331bbc620992e6ae77c221a72381d136b9f4b1070d4cb788e410d4

  • SSDEEP

    3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpni:2+rA/WSo1rl3ALrlHQpni

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note
Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at WayneEvenson@protonmail.com or WayneEvenson@tutanota.com BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe
Emails

WayneEvenson@protonmail.com

WayneEvenson@tutanota.com

Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Targets

    • Target

      2024-04-13_7f193964270dc3d207e4413890c95ab2_ryuk

    • Size

      170KB

    • MD5

      7f193964270dc3d207e4413890c95ab2

    • SHA1

      e3b1b6adf8292e91234a455397d6496b5d92e322

    • SHA256

      29824133432b929766e8287ad658b75ebfef08d62341c0bb338f239c6f114932

    • SHA512

      16210a0ee45b1ea20921ea967e44ad569427960c8299840398c8024c7ef88d18ff4aaf18a6331bbc620992e6ae77c221a72381d136b9f4b1070d4cb788e410d4

    • SSDEEP

      3072:2HeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpni:2+rA/WSo1rl3ALrlHQpni

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Detects command variations typically used by ransomware

    • Detects executables containing many references to VEEAM. Observed in ransomware

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks