Overview

overview

10

Static

static

26c71466a3...8b.exe

windows7_x64

10

26c71466a3...8b.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    26c71466a302ececebaa7cfa02bbd6bc6a55f5e1ca28355a2c60580504f8318b

  • Size

    170KB

  • Sample

    220220-k5cc8sagg8

  • MD5

    084fb1c28bb8e11759ecaf1564e917f2

  • SHA1

    f721d0bb029fc5da0dfa5c51d8d7a7679a4c0a63

  • SHA256

    26c71466a302ececebaa7cfa02bbd6bc6a55f5e1ca28355a2c60580504f8318b

  • SHA512

    29c37b893a2bc2a845d943278810ccf7a63ab5d4751aa1a037a6ed6badb6fa1395bfbfd1c58eb02ab0502185004693838896ce453b964685ad95bcbb1d252cbc

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 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

      26c71466a302ececebaa7cfa02bbd6bc6a55f5e1ca28355a2c60580504f8318b

    • Size

      170KB

    • MD5

      084fb1c28bb8e11759ecaf1564e917f2

    • SHA1

      f721d0bb029fc5da0dfa5c51d8d7a7679a4c0a63

    • SHA256

      26c71466a302ececebaa7cfa02bbd6bc6a55f5e1ca28355a2c60580504f8318b

    • SHA512

      29c37b893a2bc2a845d943278810ccf7a63ab5d4751aa1a037a6ed6badb6fa1395bfbfd1c58eb02ab0502185004693838896ce453b964685ad95bcbb1d252cbc

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • 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

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks