General

  • Target

    https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware

  • Sample

    240427-p172kabd7s

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___BEX27U_.txt

Family

cerber

Ransom Note
Hi, I'am CRBR ENCRYPTOR ;) ----- ALL YOUR DOCUMENTS, PH0T0S, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only one way to decrypt your files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_R_E_A_D___T_H_I_S_*) with complete instructions how to decrypt your files. If you cannot find any (*_R_E_A_D___T_H_I_S_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://xpcx6erilkjced3j.onion/9F5A-A822-CDCC-0098-BDAB Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://xpcx6erilkjced3j.1n5mod.top/9F5A-A822-CDCC-0098-BDAB 2. http://xpcx6erilkjced3j.19kdeh.top/9F5A-A822-CDCC-0098-BDAB 3. http://xpcx6erilkjced3j.1mpsnr.top/9F5A-A822-CDCC-0098-BDAB 4. http://xpcx6erilkjced3j.18ey8e.top/9F5A-A822-CDCC-0098-BDAB 5. http://xpcx6erilkjced3j.17gcun.top/9F5A-A822-CDCC-0098-BDAB ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/9F5A-A822-CDCC-0098-BDAB

http://xpcx6erilkjced3j.1n5mod.top/9F5A-A822-CDCC-0098-BDAB

http://xpcx6erilkjced3j.19kdeh.top/9F5A-A822-CDCC-0098-BDAB

http://xpcx6erilkjced3j.1mpsnr.top/9F5A-A822-CDCC-0098-BDAB

http://xpcx6erilkjced3j.18ey8e.top/9F5A-A822-CDCC-0098-BDAB

http://xpcx6erilkjced3j.17gcun.top/9F5A-A822-CDCC-0098-BDAB

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\QCOGFRHZ-MANUAL.txt

Family

gandcrab

Ransom Note
---= GANDCRAB V5.2 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .QCOGFRHZ The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/e9e49de06d379e2 | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs

http://gandcrabmfe6mnef.onion/e9e49de06d379e2

Targets

    • Target

      https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware

    • Cerber

      Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    • Gandcrab

      Gandcrab is a Trojan horse that encrypts files on a computer.

    • Modifies visibility of file extensions in Explorer

    • UAC bypass

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Renames multiple (269) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Contacts a large (1112) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Sets service image path in registry

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Account Manipulation

1
T1098

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Defense Evasion

Hide Artifacts

3
T1564

Hidden Files and Directories

3
T1564.001

Modify Registry

6
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

2
T1562

Disable or Modify Tools

1
T1562.001

Disable or Modify System Firewall

1
T1562.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Network Service Discovery

1
T1046

Query Registry

5
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks