Overview

overview

10

Static

static

826ab21b35...ec.exe

windows7_x64

10

826ab21b35...ec.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    826ab21b35cb73a12a56002c87c492d0192e85f912627e440f49e2d2777942ec

  • Size

    206KB

  • Sample

    220220-ftwwaaaael

  • MD5

    c75b0beff52189aed827839bea3e5da4

  • SHA1

    e9b20948b82eee88081cebe2d62408871dbe601a

  • SHA256

    826ab21b35cb73a12a56002c87c492d0192e85f912627e440f49e2d2777942ec

  • SHA512

    4fe591ab12f1245f7f16efea215679321ff415b879cacfa373824e6f170d08ffcf650783f835fd219abe240b7fe0fd48d4f1dad0e4b730e7e72fb6433b6b8a9c

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note
Your network has been penetrated. All files on each network host have been encrypted with a strong algorithm. Backups were encrypted too. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. Only we have exclusive decryption software, suitable for your situation. More than a year ago, world experts recognized the impossibility of such encryption deciphering by any means except the original decoder. No decryption software is available in the public. Antivirus companies, researchers, IT specialists, and any other persons cannot help you to decipher the data. Decryption takes from ten minutes up to several hours. It is performed automatically and doesn't require from you any actions except decoder launching. DO NOT RESET OR SHUTDOWN SYSTEM � files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions. Send 2 different random files and you will get them back decrypted. It can be from different computers on your network to be sure that one key decrypts everything. We will unlock 2 files for free. To get info (decrypt your files) contact us a [email protected] or [email protected] You will receive btc address for payment in the reply letter Ryuk No system is safe

Targets

    • Target

      826ab21b35cb73a12a56002c87c492d0192e85f912627e440f49e2d2777942ec

    • Size

      206KB

    • MD5

      c75b0beff52189aed827839bea3e5da4

    • SHA1

      e9b20948b82eee88081cebe2d62408871dbe601a

    • SHA256

      826ab21b35cb73a12a56002c87c492d0192e85f912627e440f49e2d2777942ec

    • SHA512

      4fe591ab12f1245f7f16efea215679321ff415b879cacfa373824e6f170d08ffcf650783f835fd219abe240b7fe0fd48d4f1dad0e4b730e7e72fb6433b6b8a9c

    Score
    10/10
    ryukransomware

    • 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.

    • Drops desktop.ini file(s)

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks