General

  • Target

    46d4b4601a37c1ba3f7fa4d8bde1494d75bb28cbd2dc90b539a39e31aebac3dc

  • Size

    428KB

  • Sample

    220625-gx614aghhj

  • MD5

    4389b3e3877ddf0e178534ca8d7226ad

  • SHA1

    d07e43eb9d2c33de333050a4b8cbbd6756f5c931

  • SHA256

    46d4b4601a37c1ba3f7fa4d8bde1494d75bb28cbd2dc90b539a39e31aebac3dc

  • SHA512

    ab27b6973fce21744a7e05cddbc0aa831baf715725b51469563280dadf08597eb085e8256b1f18159c5fb8445ce504434cbbc8610a328ef6dfd074a3768eeaab

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\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 E3E187FD 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

      46d4b4601a37c1ba3f7fa4d8bde1494d75bb28cbd2dc90b539a39e31aebac3dc

    • Size

      428KB

    • MD5

      4389b3e3877ddf0e178534ca8d7226ad

    • SHA1

      d07e43eb9d2c33de333050a4b8cbbd6756f5c931

    • SHA256

      46d4b4601a37c1ba3f7fa4d8bde1494d75bb28cbd2dc90b539a39e31aebac3dc

    • SHA512

      ab27b6973fce21744a7e05cddbc0aa831baf715725b51469563280dadf08597eb085e8256b1f18159c5fb8445ce504434cbbc8610a328ef6dfd074a3768eeaab

    • 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.

    • 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

    • Suspicious use of SetThreadContext

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