General

  • Target

    WeAreDevs_API.dll

  • Size

    607KB

  • Sample

    230119-zay13shd32

  • MD5

    ea1ad1e19e81df5cfcb4207563896153

  • SHA1

    d0391630a4d1eab58b59b62062413fd9a6d70461

  • SHA256

    ba4ede69fef9675f0c8dd546cf41d0c529fa2bd75965d6964709f20ae3681109

  • SHA512

    a9b65263739bb794f7d54db06ffbb1c42eeac367b252b820e2e93313e328592652890fa3c6e3ea5d04fa193854c87b499cb07e9b7afc1627de27b27d1cec8471

  • SSDEEP

    12288:XURkGrbk/x95DR7XZdfrXg+JwuKt/S/60pR5kjo5Bda7EptO:XIkyk/x9L7Xfw+Jwz/S/69k5BkApt

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: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 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

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      WeAreDevs_API.dll

    • Size

      607KB

    • MD5

      ea1ad1e19e81df5cfcb4207563896153

    • SHA1

      d0391630a4d1eab58b59b62062413fd9a6d70461

    • SHA256

      ba4ede69fef9675f0c8dd546cf41d0c529fa2bd75965d6964709f20ae3681109

    • SHA512

      a9b65263739bb794f7d54db06ffbb1c42eeac367b252b820e2e93313e328592652890fa3c6e3ea5d04fa193854c87b499cb07e9b7afc1627de27b27d1cec8471

    • SSDEEP

      12288:XURkGrbk/x95DR7XZdfrXg+JwuKt/S/60pR5kjo5Bda7EptO:XIkyk/x9L7Xfw+Jwz/S/69k5BkApt

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Drops startup file

    • 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 v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

1
T1158

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks