Overview

overview

10

Static

static

1

sayobk.sayobak

windows11-ltsc_2024-x64

10

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General

  • Target
    sayobk.sayobak
  • Size 272KB
  • Sample260718-2bhrlag16s
  • SHA256 ae5db083dc4533a5ea4ca55ec02cc7d622758de728d60e8ca245baa6bac08302
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
wannacrydefense_evasiondiscoveryexecutionimpactpersistenceransomwaresuricataworm

Malware Config

Extracted

Path

  • wannacry

Ransom Note
  • Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

  • 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target
      sayobk.sayobak
    • Size 272KB
    • SHA256 ae5db083dc4533a5ea4ca55ec02cc7d622758de728d60e8ca245baa6bac08302
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoveryexecutionwannacryimpactpersistenceransomwaresuricataworm

    • Family: Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Suricata alert: Tor Node X.509 Certificate Pattern Detected - Inbound

      Network activity triggered a Suricata alert

      suricata

    • Adds Run key to start application

      persistence

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

      defense_evasion

    • Executes a VBScript file via the Windows Script Host.

      execution

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2
T1059

Visual Basic

1
T1059.005

Windows Command Shell

1
T1059.003

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

File and Directory Permissions Modification

2
T1222

Windows File and Directory Permissions Modification

1
T1222.001

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks