Overview

overview

10

Static

static

9e8f01b3fb...39.exe

windows7_x64

10

9e8f01b3fb...39.exe

windows10-2004_x64

7

Sharing

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General

  • Target

    9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39

  • Size

    170KB

  • Sample

    220220-ekkwzshebr

  • MD5

    26f3ee3f591b0d3a267d8b1ac6ffd59c

  • SHA1

    e4f263ef3beb7e77ade5225c9d1e7d24bab668d0

  • SHA256

    9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39

  • SHA512

    aaae22bf758fbf8fe707ad0ee6d9e30421924461be1470d1232d8c20b404310070175f2f59db84f0d31220e5198c2290012fe18c25a005d02bcb6bf3921b10cb

Score
10/10
ryukpersistenceransomware

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 [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe
Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Targets

    • Target

      9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39

    • Size

      170KB

    • MD5

      26f3ee3f591b0d3a267d8b1ac6ffd59c

    • SHA1

      e4f263ef3beb7e77ade5225c9d1e7d24bab668d0

    • SHA256

      9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39

    • SHA512

      aaae22bf758fbf8fe707ad0ee6d9e30421924461be1470d1232d8c20b404310070175f2f59db84f0d31220e5198c2290012fe18c25a005d02bcb6bf3921b10cb

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks