General

  • Target

    test.vbs.zip

  • Size

    498B

  • Sample

    200714-7at478ynk6

  • MD5

    f0e200117a3390245012ae7e380eb285

  • SHA1

    9c08cfad3e33b29d01c53a88e0628690abeccb06

  • SHA256

    7846adeae0737e0ae55d0045adeb644c27745c2d0f1af92c56a9e4351e881451

  • SHA512

    dba96be76d15f6bbbad0e34b9018a963d6c1287595d0f20aeb3bdc26b05ec1e6f82fe5dd830f9fb04ada22f687fdb521199b395f552572aab9197c78ce6c03dc

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@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: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw 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

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@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

      test.vbs

    • Size

      589B

    • MD5

      94d9611bf2c6e0caa430b1b0b808da1e

    • SHA1

      723de46bdda58dd345b0c0bfd8bdbc33ea1931ec

    • SHA256

      8cf91cb3c0524feabe3b9502aa36ec58003e9e0db849901948cd335caf0e4f66

    • SHA512

      6baddf54c364c1c39bccd4f3e78f2b97f62297382c46642f6fc921fb2bc950e3ee44c6f94b5447c13faa028d9bc706ee9784582188e7a07fd3805de836b63e8e

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Blacklisted process makes network request

    • Executes dropped EXE

    • Deletes itself

    • 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 entry to start application

    • Modifies service

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Modify Existing Service

1
T1031

Hidden Files and Directories

1
T1158

Defense Evasion

File Deletion

2
T1107

File Permissions Modification

1
T1222

Modify Registry

4
T1112

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks