General

  • Target

    0cf2d23d4d0baaa336a27e04f15f76ee_JaffaCakes118

  • Size

    270KB

  • Sample

    240502-ajnt2abc31

  • MD5

    0cf2d23d4d0baaa336a27e04f15f76ee

  • SHA1

    31fdcca79679987bb7c42ecebfbf1639e62d80bb

  • SHA256

    d42b70f5dafd78c0ba9ca1ede4e5d8add0a5046640cb165bf907f5bd66f246ed

  • SHA512

    c6a97259284c3e3d8cdb00df10702183099b23e18dd55748f17bf5872a785ffc7f5c17648e9e0467f4bfe6474cced2312e61900ce1eac18cb478b23c5b4ca576

  • SSDEEP

    6144:SO+TxqkayL65nqnpVztRRh17Q3dPjYN/fJNLhbj:SOuxqka2iwpz72UV

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@stex777.com Write this ID in the title of your message 4A22D03A In case of no answer in 24 hours write us to theese e-mails: admin@stex777.xyz 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@stex777.com

admin@stex777.xyz

Targets

    • Target

      0cf2d23d4d0baaa336a27e04f15f76ee_JaffaCakes118

    • Size

      270KB

    • MD5

      0cf2d23d4d0baaa336a27e04f15f76ee

    • SHA1

      31fdcca79679987bb7c42ecebfbf1639e62d80bb

    • SHA256

      d42b70f5dafd78c0ba9ca1ede4e5d8add0a5046640cb165bf907f5bd66f246ed

    • SHA512

      c6a97259284c3e3d8cdb00df10702183099b23e18dd55748f17bf5872a785ffc7f5c17648e9e0467f4bfe6474cced2312e61900ce1eac18cb478b23c5b4ca576

    • SSDEEP

      6144:SO+TxqkayL65nqnpVztRRh17Q3dPjYN/fJNLhbj:SOuxqka2iwpz72UV

    • 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 (314) files with added filename extension

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

    • 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)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

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

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks