General

  • Target

    4aab275b3318ccc3432c065561a1911c7f7b9d3b5d7aa7ec1d8e5bffa6c7409f

  • Size

    192KB

  • Sample

    220128-z1ys1aeaf7

  • MD5

    2e99d80a8b6534a2604d5ea918a3879e

  • SHA1

    be0101b10243aa75b4d003a8eb47c2c06aa32cb2

  • SHA256

    4aab275b3318ccc3432c065561a1911c7f7b9d3b5d7aa7ec1d8e5bffa6c7409f

  • SHA512

    71ae3aecee68777b324d36b1850bd14cab244290232584d4d7d6ce1ab276e5540ac12d3bfe3fde5d411ba201e7062e067e914b12e311adaaf4aaa59f590f2d46

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/554e43ff4fa7a1fb | 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/554e43ff4fa7a1fb

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/5775be967041606 | 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/5775be967041606

Targets

    • Target

      4aab275b3318ccc3432c065561a1911c7f7b9d3b5d7aa7ec1d8e5bffa6c7409f

    • Size

      192KB

    • MD5

      2e99d80a8b6534a2604d5ea918a3879e

    • SHA1

      be0101b10243aa75b4d003a8eb47c2c06aa32cb2

    • SHA256

      4aab275b3318ccc3432c065561a1911c7f7b9d3b5d7aa7ec1d8e5bffa6c7409f

    • SHA512

      71ae3aecee68777b324d36b1850bd14cab244290232584d4d7d6ce1ab276e5540ac12d3bfe3fde5d411ba201e7062e067e914b12e311adaaf4aaa59f590f2d46

    • Gandcrab

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

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Drops startup file

    • Loads dropped DLL

    • 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

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

1
T1490

Tasks