Overview

overview

10

Static

static

413bd0bab5...b7.exe

windows7_x64

10

413bd0bab5...b7.exe

windows10-2004_x64

8

Sharing

Copy URL
Twitter E-mail

General

  • Target

    413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7

  • Size

    351KB

  • Sample

    220220-jympysbdej

  • MD5

    efd0d3409e5e7ffe94f931ff6f09035e

  • SHA1

    c7830b5cadb9320bc8b9876d84acb4e13f90434a

  • SHA256

    413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7

  • SHA512

    a60fa47ed884327adf98c3ed3e67cf0149678f6c2cf74c3c6c627e579067ad4636afe122fd246fbf0613889af46a096d3656932a4bcad52a12803ff0950b9386

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 FreedSmitt@protonmail.com or FreedSmitt@tutanota.com BTC wallet: 1CN2iQbBikFK9jM34Nb3WLx5DCenQLnbXp Ryuk
Emails

FreedSmitt@protonmail.com

FreedSmitt@tutanota.com
Wallets

1CN2iQbBikFK9jM34Nb3WLx5DCenQLnbXp

Targets

    • Target

      413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7

    • Size

      351KB

    • MD5

      efd0d3409e5e7ffe94f931ff6f09035e

    • SHA1

      c7830b5cadb9320bc8b9876d84acb4e13f90434a

    • SHA256

      413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7

    • SHA512

      a60fa47ed884327adf98c3ed3e67cf0149678f6c2cf74c3c6c627e579067ad4636afe122fd246fbf0613889af46a096d3656932a4bcad52a12803ff0950b9386

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • 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