Overview

overview

10

Static

static

b8857e26d8...20.exe

windows7_x64

10

b8857e26d8...20.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    b8857e26d83b061ade0ade27558c4c6a83e80a6a85142d7c016e01a597852720

  • Size

    123KB

  • Sample

    220220-dbdkwaghgj

  • MD5

    2ea4d8210255c338743dbd770528251f

  • SHA1

    494eda967c0262e8e50ffc7903fc550fefad9e46

  • SHA256

    b8857e26d83b061ade0ade27558c4c6a83e80a6a85142d7c016e01a597852720

  • SHA512

    404ed8fdb7307e54ffd3f953ffb296173a742a45eb4a7884c65662a575386f59376d00735ea76d6cd6da3dd986abc38bf03791d6db96e2461e21f4d2b12e8899

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

      b8857e26d83b061ade0ade27558c4c6a83e80a6a85142d7c016e01a597852720

    • Size

      123KB

    • MD5

      2ea4d8210255c338743dbd770528251f

    • SHA1

      494eda967c0262e8e50ffc7903fc550fefad9e46

    • SHA256

      b8857e26d83b061ade0ade27558c4c6a83e80a6a85142d7c016e01a597852720

    • SHA512

      404ed8fdb7307e54ffd3f953ffb296173a742a45eb4a7884c65662a575386f59376d00735ea76d6cd6da3dd986abc38bf03791d6db96e2461e21f4d2b12e8899

    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