General

  • Target

    227d13f9a142cc6f050b7761e6c6e1bae712c4440730ec71c84e5acb274555e3

  • Size

    245KB

  • Sample

    201109-8klfw4zlsn

  • MD5

    dca247cda2f20152feb8cf6b410fc093

  • SHA1

    c7f9176ed2615364fb02d454918425814d52d4bf

  • SHA256

    227d13f9a142cc6f050b7761e6c6e1bae712c4440730ec71c84e5acb274555e3

  • SHA512

    91f2b08c409110f74c0a42f3df1f7920a539d2081704878ae573e9111b5f8cc4694611c8d541fc9f1bf913847ca94ef487f8f1333a34507bb3c3cd9fe7623760

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 3441546223@qq.com Write this ID in the title of your message 5BBE3585 In case of no answer in 24 hours write us to theese e-mails: 3441546223@qq.com 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

3441546223@qq.com

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 3441546223@qq.com Write this ID in the title of your message B39E5766 In case of no answer in 24 hours write us to theese e-mails: 3441546223@qq.com 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

3441546223@qq.com

Targets

    • Target

      227d13f9a142cc6f050b7761e6c6e1bae712c4440730ec71c84e5acb274555e3

    • Size

      245KB

    • MD5

      dca247cda2f20152feb8cf6b410fc093

    • SHA1

      c7f9176ed2615364fb02d454918425814d52d4bf

    • SHA256

      227d13f9a142cc6f050b7761e6c6e1bae712c4440730ec71c84e5acb274555e3

    • SHA512

      91f2b08c409110f74c0a42f3df1f7920a539d2081704878ae573e9111b5f8cc4694611c8d541fc9f1bf913847ca94ef487f8f1333a34507bb3c3cd9fe7623760

    • 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.

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Deletes itself

    • 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.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Modifies service

    • Suspicious use of SetThreadContext

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