General

  • Target

    https://github.com/Endermanch/MalwareDatabase/blob/master/jokes/

  • Sample

    240811-lj277stfml

Malware Config

Extracted

Path

C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML

Ransom Note
<html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>Y2E3RKmTBjCkCTotSGMEjAQx51PmQCDahgLApeIgTkf1/IxTCZQ3hE2PIPaC2ZihA2A0x0OJRAgarlT6/PBy5DIwxRN1GaOvSXWbWhbPzOcAmhI3TIy8FF9paPwrGRxXNNa5snY+seRf6Q9AtOy3lWBoXSjq8/YpRZGvy4jNS+rt1jI6RwAQynGeS7uG+gmgnFyki6WrgeY5Nr+DZu4sd+z65AFNu1pgc1O3apezB63DtYE4npblUBhlzfKfSqmsv8WetKoJyEed4u0UbQaW88budGxJ+Ch7TDNBY4uCCAkv4gw0Sp4fz/ltpPUr0+DpVkkySboj4Ijqh4jsuPQ4rw==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Extracted

Path

C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML

Ransom Note
<html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>AmL5CdIx1aXs+xZlBAPJHgpH2wUWhPbMlRMmto3PMYWEotC0M0hry2YQWmlexy2RU0TjZv0AN5IOuE/8jNBrdlgDxHzEnMKdN4XZSqM+hg4946sHzAfUXcB5Ot08qr/d5eS5m90sWN9GCXM/p7deGGFuZLdIW4DaLNrnOL1vIA/8RahN+WGyI0xmAwbnI0SrR+nANDtO6RK0gaUPvu40nLGvDI4sAHCcqSkNgUYRYFKqCAOYnIAeL5sELIivD/jqLxyzUKOnz7w6HXDDQvpbVAOQ2Dc44NPYdEHIJwF+aooMPpB25Feu6IsUwyviTn36wX0mj7i2SqKgcVHhJbwjvw==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      https://github.com/Endermanch/MalwareDatabase/blob/master/jokes/

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Renames multiple (1025) files with added filename extension

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

    • Disables Task Manager via registry modification

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks