General

  • Target

    23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.zip

  • Size

    196KB

  • Sample

    240306-qnlhgabg5x

  • MD5

    fbd71fcb4de29e47e6bbdd4e4cacd566

  • SHA1

    41ed948e07ff739df1ead048b891a5bdd171a972

  • SHA256

    cd3f26a82be54e61868a4faa7eb7f5db44edb3c9225cc80f84ce7eb36f787821

  • SHA512

    5574b4a45010c3f469bac4417a858f309a1d216ed9ce27f6018d8a1285d04841bb8461b32d235ae374e4859cd03d5cd7f5ae64e46313fb69e864ef60c22c371c

  • SSDEEP

    6144:wM4sqdXSJoJFe8zDX+9XVPB+QE3HYQD0YBqDfDz2Vr:/4skSJuRrmXVPQQCYQD0YBqDar

Malware Config

Extracted

Path

F:\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

      23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.exe

    • Size

      384KB

    • MD5

      5ac0f050f93f86e69026faea1fbb4450

    • SHA1

      9709774fde9ec740ad6fed8ed79903296ca9d571

    • SHA256

      23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2

    • SHA512

      b554487c4e26a85ec5179cdcc1d25b5bc494e8821a8899fbbf868c3cf41f70cc72db107613b3f6655d3ab70f4db94cce2589066bb354b1ed955098d3911b844d

    • SSDEEP

      6144:f5yaXtrA/WSo1rl3ALrlHQpn0BwK3SBDmhYfFQC:fTX6WSofcZ+KCIGD

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Deletes itself

    • Executes dropped EXE

    • 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

System Information Discovery

1
T1082

Tasks