General

  • Target

    386ad76c899489cbe2966ef26a941802_JaffaCakes118

  • Size

    92KB

  • Sample

    240512-fstpjaaa9v

  • MD5

    386ad76c899489cbe2966ef26a941802

  • SHA1

    c8a2b0a0b5417f5d502a6446fd7055f9111d0b59

  • SHA256

    fe8c90707056408448fd4887305773f8572e6e128892a9665b5c07088841e977

  • SHA512

    538d60b0e199818c26a751f6cbe00c4d45b2b067a052734341778d690d5413749086b11c53d429768fadf3b0e4f9709698bc37747b091b53a633add4c45cdbc4

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AijpAtcn3vvvz/OB6kBZESNI9uXpfqzIIT:Qw+asqN5aW/hLcNAtcHL5822fK

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 repairmyfiles@foxmail.com Write this ID in the title of your message 202AB621 In case of no answer in 24 hours write us to theese e-mails: repairmyfiles@foxmail.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

repairmyfiles@foxmail.com

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 repairmyfiles@foxmail.com Write this ID in the title of your message 8AF6B330 In case of no answer in 24 hours write us to theese e-mails: repairmyfiles@foxmail.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

repairmyfiles@foxmail.com

Targets

    • Target

      386ad76c899489cbe2966ef26a941802_JaffaCakes118

    • Size

      92KB

    • MD5

      386ad76c899489cbe2966ef26a941802

    • SHA1

      c8a2b0a0b5417f5d502a6446fd7055f9111d0b59

    • SHA256

      fe8c90707056408448fd4887305773f8572e6e128892a9665b5c07088841e977

    • SHA512

      538d60b0e199818c26a751f6cbe00c4d45b2b067a052734341778d690d5413749086b11c53d429768fadf3b0e4f9709698bc37747b091b53a633add4c45cdbc4

    • SSDEEP

      1536:mBwl+KXpsqN5vlwWYyhY9S4AijpAtcn3vvvz/OB6kBZESNI9uXpfqzIIT:Qw+asqN5aW/hLcNAtcHL5822fK

    • 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.

    • Renames multiple (313) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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 v13

Execution

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks