General

  • Target

    649a1862c2a11d0ca8ac0efd1b4dbe3ca63db4f674d05f01b358c0ddb2af454b

  • Size

    310KB

  • Sample

    220731-h8gq1sedb8

  • MD5

    df0762d26307d82d0b0add2a0d3c82d6

  • SHA1

    f2bef1752449e6aba38d1a2125449c9da5bf0bfa

  • SHA256

    649a1862c2a11d0ca8ac0efd1b4dbe3ca63db4f674d05f01b358c0ddb2af454b

  • SHA512

    25d30bafd37bd1273c3c50013f83eb6d70ce2f4b60608cd929f6ccd4e60d8a6e5fc05b0b5dbd4987a3dfb56467c17963cd9f2b29f84d7d7e30bb6b6375b1dca5

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail admin@fentex.net Write this ID in the title of your message 405AD70D In case of no answer in 24 hours write us to theese e-mails: admin@fentex.world You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.
Emails

admin@fentex.net

admin@fentex.world

Targets

    • Target

      649a1862c2a11d0ca8ac0efd1b4dbe3ca63db4f674d05f01b358c0ddb2af454b

    • Size

      310KB

    • MD5

      df0762d26307d82d0b0add2a0d3c82d6

    • SHA1

      f2bef1752449e6aba38d1a2125449c9da5bf0bfa

    • SHA256

      649a1862c2a11d0ca8ac0efd1b4dbe3ca63db4f674d05f01b358c0ddb2af454b

    • SHA512

      25d30bafd37bd1273c3c50013f83eb6d70ce2f4b60608cd929f6ccd4e60d8a6e5fc05b0b5dbd4987a3dfb56467c17963cd9f2b29f84d7d7e30bb6b6375b1dca5

    • Dharma

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

    • 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.

    • Drops startup file

    • 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

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks