Resubmissions

31-07-2023 12:37

230731-ptx8safd79 10

31-07-2023 12:37

230731-ptndksfd76 7

31-07-2023 11:43

230731-nvq1eseh69 10

General

  • Target

    yOMHr.exe

  • Size

    170KB

  • Sample

    230731-ptx8safd79

  • MD5

    31bd0f224e7e74eee2847f43aae23974

  • SHA1

    92e331e1e8ad30538f38dd7ba31386afafa14a58

  • SHA256

    8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d

  • SHA512

    a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249

  • SSDEEP

    3072:2qeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpn:2trA/WSo1rl3ALrlHQpn

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

      yOMHr.exe

    • Size

      170KB

    • MD5

      31bd0f224e7e74eee2847f43aae23974

    • SHA1

      92e331e1e8ad30538f38dd7ba31386afafa14a58

    • SHA256

      8b0a5fb13309623c3518473551cb1f55d38d8450129d4a3c16b476f7b2867d7d

    • SHA512

      a13f05a12b084ef425f542ff4be824bbccb5dbdfe085af8b7e19d81a6bcba4b8c1debcc38f6b57bc9265a4db21eed70852ece8cc62b3ef14c47fca3035a55249

    • SSDEEP

      3072:2qeriftL/WSo1vDb53j/8WGUzaqVh4LI8zQpn:2trA/WSo1rl3ALrlHQpn

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • 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

3
T1082

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

Tasks