General

  • Target
    https://github.com/Da2dalus/The-MALWARE-Repo
  • Sample260220-ab3cfsb18c

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>hzdxALlUgxk2Y/sGJjxs82X/glaBh3TPt+aq2VaEl862zRkBbzF98M7I7wydq2C6+Pjiv47aQ3QVoSEO1W4odjnKmt4uwYb+PXYIOVQLGPQGR4DNFkIuBsjPPbkhsZy2PluofE3apSvF0bTIdcxpb4Lkm8kwpjAT2TA6PyHOsWcNLVZnrwusNIkf6yBiJ1z7pDw9da5NRXI66f9rjSOUc7SJJoEz1ni6T3QK3pMf3zTth7DgaFS2aqn2hFk8Gz5bdx8KsmEhSn1ck0kIp76qAjjhFbtRwIboT5KdpRp90p5xSyDa+uiki4YgvecwFjUXL0FqeV9meT3SBSdgrmIbkg==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>K/aKrkyEHI9LCmBVgsAwJy4QKKw+dUw+CHSe0Eh1hDf7zl7rqwrhXC/2qi4/SHnQUci0xjv/fDywMGiab62I/ZFK3SolzE2tsXK+TWeTQN2JRgpaqZdhrWgSv20WnuMAs013lBVt0OZMLTK7YcNMtWGfouj/a7/VF7XfgkFjOsRavCE3BM2uKiC8Cm2CvMsAN62qg1yD5Y5D/+PQ2Yap6nRh0TgnEGfXk/pWRO7VcC83YG8RM6fILzBOzybUU5HYDLG7X7Tut6cx/RPPXBCL7jcWAT+o9B+TZaNndZTl/yHAiZSKXFZItc6kzmtVuRHOk17Frr1hzCAbwkKsNryFoA==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>NRNe/5Wx6F0gMplCnj1odfYfSHwfTK8+nQ1VFKf3aGzJWt0/1ey7U6FtPON1s9LHkjdDRA4i3yOO91P858lNFQenCGgcfvs5Iy+vxJUj83JymRV5YyBBmZMLcxcmiD+DECh0a9nwG+Eyb+gopROY1A6bEIynW4AEJMms9IMS2E6c8LwmHYFqVtfj7xxVNjGVozDqyKq/Vx3T/IAG3qF4WMf/p5oFN7ciy9/VoluJpJxbAIqn/rGJHbkUBBe7FVbVjaWYhJvebInZeqP9I4UWa7J92Npv9rZm5GIDjDkXnuAgX9XDGhjo+ly8KnIElPvQ+dLzvfJ/Hjfra2PQV1Y2jQ==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Dharma

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

    • Dharma family

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Fantom family

    • Troldesh family

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (792) files with added filename extension

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

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Executes dropped EXE

    • 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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v16

Tasks