General

  • Target

    3d6b4312947a3a0f76abd8981c5452dfd26aadaa109d3e200d987f8e903d5ab0

  • Size

    208KB

  • Sample

    220703-dnw8raehe4

  • MD5

    b28e0a994aec0fed8a429852f5f96b69

  • SHA1

    ae83fb72418e9ab22722b9ece02f93860b4ffc6c

  • SHA256

    3d6b4312947a3a0f76abd8981c5452dfd26aadaa109d3e200d987f8e903d5ab0

  • SHA512

    a9031899f7cea9153e9fa3442bfbfd001cd157347828ebcc0dace421f4571464bffac582522b3aecc0297925ec01d6ee4f208cf679ae5987a584ac583db9ac2f

Malware Config

Extracted

Path

C:\KRAB-DECRYPT.txt

Ransom Note
---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/adcaf1adadfc674f | 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/adcaf1adadfc674f

Extracted

Path

C:\KRAB-DECRYPT.txt

Ransom Note
---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/b4501dc620c28291 | 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/b4501dc620c28291

Targets

    • Target

      3d6b4312947a3a0f76abd8981c5452dfd26aadaa109d3e200d987f8e903d5ab0

    • Size

      208KB

    • MD5

      b28e0a994aec0fed8a429852f5f96b69

    • SHA1

      ae83fb72418e9ab22722b9ece02f93860b4ffc6c

    • SHA256

      3d6b4312947a3a0f76abd8981c5452dfd26aadaa109d3e200d987f8e903d5ab0

    • SHA512

      a9031899f7cea9153e9fa3442bfbfd001cd157347828ebcc0dace421f4571464bffac582522b3aecc0297925ec01d6ee4f208cf679ae5987a584ac583db9ac2f

    • GandCrab Payload

    • Gandcrab

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

    • suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

      suricata: ET MALWARE [eSentire] Win32/GandCrab v4/5 Ransomware CnC Activity

    • 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

    • Reads user/profile data of web browsers

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

    • Enumerates connected drives

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

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

1
T1107

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

1
T1490

Tasks