General

  • Target

    a5de5b0e2a1da6e958955c189db72467ec0f8daaa9f9f5ccc44e71c6c5d8add4.sample

  • Size

    14.1MB

  • Sample

    210726-kyc1r6kqfj

  • MD5

    d35fa59ce558fe08955ce0e807ce07d0

  • SHA1

    3fa0e015acddad634f9f362099f3d79683159726

  • SHA256

    a5de5b0e2a1da6e958955c189db72467ec0f8daaa9f9f5ccc44e71c6c5d8add4

  • SHA512

    b1965eea1ed6c77979c79acf893cd2ac2dbfa898b870f76d9ab59936ac5cf5c0995db9d98addfa72e6c1b2b304d6b021b9be89458a5b82ea6ff9f5014c8f9d0b

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 Enigma1crypt@aol.com Write this ID in the title of your message 978818B6 In case of no answer in 24 hours write us to theese e-mails: Enigma1crypt@aol.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

Enigma1crypt@aol.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 Enigma1crypt@aol.com Write this ID in the title of your message A1AF9847 In case of no answer in 24 hours write us to theese e-mails: Enigma1crypt@aol.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

Enigma1crypt@aol.com

Targets

    • Target

      a5de5b0e2a1da6e958955c189db72467ec0f8daaa9f9f5ccc44e71c6c5d8add4.sample

    • Size

      14.1MB

    • MD5

      d35fa59ce558fe08955ce0e807ce07d0

    • SHA1

      3fa0e015acddad634f9f362099f3d79683159726

    • SHA256

      a5de5b0e2a1da6e958955c189db72467ec0f8daaa9f9f5ccc44e71c6c5d8add4

    • SHA512

      b1965eea1ed6c77979c79acf893cd2ac2dbfa898b870f76d9ab59936ac5cf5c0995db9d98addfa72e6c1b2b304d6b021b9be89458a5b82ea6ff9f5014c8f9d0b

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • 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.

    • Sets file execution options in registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
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