General

  • Target

    b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae.bin

  • Size

    92KB

  • Sample

    201016-e9y8q45mj6

  • MD5

    ff9af6e3beebc9df0146f515f68e004e

  • SHA1

    f57248526065852ecb491e871160cf1cb23ae22f

  • SHA256

    b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae

  • SHA512

    49bcad9e25613bcb90dcc851a4759cd6e79afc39bd21f32bebe82aebad61b01ad49359527ca2450bdc05331f2c461ad443f976bc52122419e2a9dde9080c7fb5

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\FILES ENCRYPTED.txt

Ransom Note
all your data has been locked us You want to return? write email boston.crypt@tuta.io
Emails

boston.crypt@tuta.io

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 boston.crypt@tuta.io Write this ID in the title of your message F6A27E07 In case of no answer in 24 hours write us to theese e-mails: boston.crypt@tuta.io 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

boston.crypt@tuta.io

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 boston.crypt@tuta.io Write this ID in the title of your message 0B6F6C3F In case of no answer in 24 hours write us to theese e-mails: boston.crypt@tuta.io 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

boston.crypt@tuta.io

Targets

    • Target

      b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae.bin

    • Size

      92KB

    • MD5

      ff9af6e3beebc9df0146f515f68e004e

    • SHA1

      f57248526065852ecb491e871160cf1cb23ae22f

    • SHA256

      b6c644a1644dd9b81a604fb6ad6a8cebf4a9b14d5c41da633a93ba2f459f31ae

    • SHA512

      49bcad9e25613bcb90dcc851a4759cd6e79afc39bd21f32bebe82aebad61b01ad49359527ca2450bdc05331f2c461ad443f976bc52122419e2a9dde9080c7fb5

    • 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

    • Modifies service

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Modify Existing Service

1
T1031

Defense Evasion

File Deletion

2
T1107

Modify Registry

3
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks