Overview

overview

10

Static

static

4992a62959...55.exe

windows7_x64

10

4992a62959...55.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    4992a629599d25933b55fee0b69198e80ecdcb3727a0b11b3d2891e6cd5da555

  • Size

    123KB

  • Sample

    220220-jj4d6aabg2

  • MD5

    55f9f395702221ef4943ad778f3db103

  • SHA1

    27a7e4a5a7035f31977bbc736547d904bd6569cf

  • SHA256

    4992a629599d25933b55fee0b69198e80ecdcb3727a0b11b3d2891e6cd5da555

  • SHA512

    7e0cf5cf151f6cfd4eca5d6d190e7610c202ab6ea61973f49332c1206c09c2980ac99b395deeee6bc59ee443b8f2872b4e99510011372cdc2f5a648efbfb436d

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: 1CN2iQbBikFK9jM34Nb3WLx5DCenQLnbXp Ryuk
Wallets

1CN2iQbBikFK9jM34Nb3WLx5DCenQLnbXp

Targets

    • Target

      4992a629599d25933b55fee0b69198e80ecdcb3727a0b11b3d2891e6cd5da555

    • Size

      123KB

    • MD5

      55f9f395702221ef4943ad778f3db103

    • SHA1

      27a7e4a5a7035f31977bbc736547d904bd6569cf

    • SHA256

      4992a629599d25933b55fee0b69198e80ecdcb3727a0b11b3d2891e6cd5da555

    • SHA512

      7e0cf5cf151f6cfd4eca5d6d190e7610c202ab6ea61973f49332c1206c09c2980ac99b395deeee6bc59ee443b8f2872b4e99510011372cdc2f5a648efbfb436d

    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

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks