Overview

overview

10

Static

static

1d7647c565...9b.exe

windows7_x64

10

1d7647c565...9b.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    1d7647c565c6efb818aff1500104584d926c6fac3be19f56fd6106c17f5e2e9b

  • Size

    170KB

  • Sample

    220220-lkwf2sbad8

  • MD5

    87f52df87c03ef416af719d3b2210497

  • SHA1

    0f8047b08834f8a229992af67f1f6eb232d65941

  • SHA256

    1d7647c565c6efb818aff1500104584d926c6fac3be19f56fd6106c17f5e2e9b

  • SHA512

    01675e5440d7c32b592eb92b233ba236eab1dd2e72bc19d3054d88c84539a5b80674d67c2c655b9f9a9731ec380ed8c65db5a66af1f449f5f7d3e4e5aa62aa5c

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

      1d7647c565c6efb818aff1500104584d926c6fac3be19f56fd6106c17f5e2e9b

    • Size

      170KB

    • MD5

      87f52df87c03ef416af719d3b2210497

    • SHA1

      0f8047b08834f8a229992af67f1f6eb232d65941

    • SHA256

      1d7647c565c6efb818aff1500104584d926c6fac3be19f56fd6106c17f5e2e9b

    • SHA512

      01675e5440d7c32b592eb92b233ba236eab1dd2e72bc19d3054d88c84539a5b80674d67c2c655b9f9a9731ec380ed8c65db5a66af1f449f5f7d3e4e5aa62aa5c

    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