General

  • Target

    sample

  • Size

    876KB

  • Sample

    231128-ye16kacd29

  • MD5

    b5e8bb22c22ac62ed1edbb861a607a19

  • SHA1

    6dad8605496b38c06a4cf6365ee8ea12fafbe731

  • SHA256

    4fdfc2ddcff86c23da74987ac3596de288e8d295606902abd541f8e1082d0662

  • SHA512

    198225c152dbd3c962bd5b364daa1f4fa0a3c53aa56925cb8dcf3b2a04c42b6ebb5eb2a5e9eb5aea3d8aa21367264fcaef06e046d444257b2543966db04338e2

  • SSDEEP

    6144:FBqNLZNLpNL4NLTNLmNLwNLHNLd1UHKXWc+6J6+yyI92bUF6vMeh+v9C6vVO/DKT:FsNlN9NMNnNqN0NbN5I3OUUv8zerPm3b

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\@Please_Read_Me@.txt

Family

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn Next, please find an application file named "@WanaDecryptor@.exe". 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      sample

    • Size

      876KB

    • MD5

      b5e8bb22c22ac62ed1edbb861a607a19

    • SHA1

      6dad8605496b38c06a4cf6365ee8ea12fafbe731

    • SHA256

      4fdfc2ddcff86c23da74987ac3596de288e8d295606902abd541f8e1082d0662

    • SHA512

      198225c152dbd3c962bd5b364daa1f4fa0a3c53aa56925cb8dcf3b2a04c42b6ebb5eb2a5e9eb5aea3d8aa21367264fcaef06e046d444257b2543966db04338e2

    • SSDEEP

      6144:FBqNLZNLpNL4NLTNLmNLwNLHNLd1UHKXWc+6J6+yyI92bUF6vMeh+v9C6vVO/DKT:FsNlN9NMNnNqN0NbN5I3OUUv8zerPm3b

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

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

Indicator Removal

1
T1070

File Deletion

1
T1070.004

File and Directory Permissions Modification

1
T1222

Modify Registry

4
T1112

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

3
T1082

Query Registry

2
T1012

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Tasks