Resubmissions

02-05-2023 17:44

230502-wbmgwsdg2v 10

02-05-2023 17:36

230502-v6qx5adf8w 10

01-05-2023 18:07

230501-wqka3sdd6w 10

01-05-2023 17:42

230501-v9956sbg5y 7

General

  • Target

    https://mega.nz/file/4gJVxDaT#eAIMRrtwqm4KihPTLFv2W4Cw1-7TcDnmpkKQsdVvPpA

  • Sample

    230502-v6qx5adf8w

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\@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

Targets

    • Target

      https://mega.nz/file/4gJVxDaT#eAIMRrtwqm4KihPTLFv2W4Cw1-7TcDnmpkKQsdVvPpA

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • 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 Deletion

2
T1107

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Impact

Inhibit System Recovery

2
T1490

Defacement

1
T1491

Tasks