Overview

overview

10

Static

static

bb43f54a93...70.exe

windows7_x64

10

bb43f54a93...70.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    bb43f54a93284e12598c1650b23cb44e0a254c6ab0593cc1d87fae2f19768470

  • Size

    153KB

  • Sample

    220220-c6v8qsfhd3

  • MD5

    bc812e73df40f9c193d3039041c4dd32

  • SHA1

    5329a5292bf28d89eb0c7f1cbd7960d60239e951

  • SHA256

    bb43f54a93284e12598c1650b23cb44e0a254c6ab0593cc1d87fae2f19768470

  • SHA512

    945f66e50155086560d33615250db8dd517fe2fbf517720e4c43ffedf83f3cf8b7f8372fe39c51b33f8463590120b4a62b394d7462dafd01362b88aa90a44b89

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 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. More than a year ago, world experts recognized the impossibility of deciphering by any means except the original decoder. No decryption software is available in the public. Antiviruse companies, researchers, IT specialists, and no other persons cant help you encrypt the data. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions.Send 2 different random files and you will get it decrypted. It can be from different computers on your network to be sure that one key decrypts everything. 2 files we unlock for free To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 15LsUgfnuGc1PsHJPcfLQJEnHm2FnGAgYC Ryuk No system is safe
Wallets

15LsUgfnuGc1PsHJPcfLQJEnHm2FnGAgYC

Targets

    • Target

      bb43f54a93284e12598c1650b23cb44e0a254c6ab0593cc1d87fae2f19768470

    • Size

      153KB

    • MD5

      bc812e73df40f9c193d3039041c4dd32

    • SHA1

      5329a5292bf28d89eb0c7f1cbd7960d60239e951

    • SHA256

      bb43f54a93284e12598c1650b23cb44e0a254c6ab0593cc1d87fae2f19768470

    • SHA512

      945f66e50155086560d33615250db8dd517fe2fbf517720e4c43ffedf83f3cf8b7f8372fe39c51b33f8463590120b4a62b394d7462dafd01362b88aa90a44b89

    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

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks