General

  • Target

    39a93783c0b12ac161d029a229ac66363023e64491ca9aac95ce180ca3758c74

  • Size

    281KB

  • Sample

    210518-z8rjeza5ex

  • MD5

    afe84c02cb0cf0a75a0b9a750e3f28d7

  • SHA1

    ca9128481e8c8ecd7cc635522afa52f57e8f1763

  • SHA256

    39a93783c0b12ac161d029a229ac66363023e64491ca9aac95ce180ca3758c74

  • SHA512

    8106fed5800c343d35662913c657c7b3920100cfac0c3fe81554f5d325a98553614e7c7bb32efa9e761fa2c40de40ba561015557e7cab574b132b9b8561b2ed2

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@sectex.net Write this ID in the title of your message D46C7B2B In case of no answer in 24 hours write us to theese e-mails: admin@sectex.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@sectex.net

admin@sectex.world

Targets

    • Target

      39a93783c0b12ac161d029a229ac66363023e64491ca9aac95ce180ca3758c74

    • Size

      281KB

    • MD5

      afe84c02cb0cf0a75a0b9a750e3f28d7

    • SHA1

      ca9128481e8c8ecd7cc635522afa52f57e8f1763

    • SHA256

      39a93783c0b12ac161d029a229ac66363023e64491ca9aac95ce180ca3758c74

    • SHA512

      8106fed5800c343d35662913c657c7b3920100cfac0c3fe81554f5d325a98553614e7c7bb32efa9e761fa2c40de40ba561015557e7cab574b132b9b8561b2ed2

    • 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.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • 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