General

  • Target

    yell talk.txt

  • Size

    2KB

  • Sample

    250208-ppcfhswmbm

  • MD5

    d9cdff5e3d3346eb6655e22a295968b0

  • SHA1

    bc73870a38539b18c98ebbabfea3187253fe52e3

  • SHA256

    61ecaf7009675e044f87dfe1d91ac4697812b68112ff52bf8ca90bae96cd495e

  • SHA512

    d82c9976dd41933ccaf4d37bc856cfe7a70fc819137a171ac339ba38fdf74a5a80b7d6a565c21ea7525ad5d2c69d6e70b59ce6753b126a5fea55867b0fc58a45

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0018-0409-0000-0000000FF1CE}-C\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>Ljj8WZ8sBY5hYcrps2TbivQ3D1j9SOa5jzLEtRkSK07lYlv8i3pqxuJoup8oN5INnTkxEY6Fgc3KvElzcvaOeNWKryATNW0ntpVfyKwumzT2L4mSECDQb8hdqiiljmXRRwEe5GkRxtMLHKOEtbZVzYD+tJeJIwwMc+4YpvPGwgxLMGvumtrOop4djqVfGX/0cgcbKk8xMz6mSqcsnnpz+P6SAm2Y6lzFP7xgxeqXnPIUVnmdRzNESm3AhHXAG4ZtxuloMCYrU0lOC43pgB/19TE744YxPfrwdXu26RnRJkNtETrOkA7TLyvu+ZYpsdB5UYx5CGFT2CplHPV9P6HZeg==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Extracted

Path

C:\PerfLogs\DECRYPT_YOUR_FILES.HTML

Ransom Note
Attention ! All your files have been encrypted. Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets. That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us. Getting a decryption of your files is - SIMPLY task. That all what you need: 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] 2. For test, decrypt 2 small files, to be sure that we can decrypt you files. 3. Pay our services. 4. GET software with passwords for decrypt you files. 5. Make measures to prevent this type situations again. IMPORTANT(1) Do not try restore files without our help, this is useless, and can destroy you data permanetly. IMPORTANT(2) We Cant hold you decryption passwords forever. ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. Your ID_KEY: Zi6Yh2cM/KGMew75St9lVX20fCJRH/N5L8SDowTPy/J6//SJivLxMYlyyLuCO29P/euDP8C2oYGcxoqKQC3/HpIKD7ivAtN4STGO6Eybf8KMq77zyCzuxtJd6eDKEDBGdQ0+FJ0adVlzsRsGPYhZhFir62GOuyBwqqR8AkMhCEEH5bGDUM6MQhfXqfKBejELe/yqOjoe/0h6WpT5iTJNsQNwPKZIozKdGifB4Q1cz3Idfl8IRI5Xx3v6fRQLxGLc+ZuWrerkLfSuC44EDGH1mVGtK5efFgxqTIcpcIBooQMNg7DSaV7R9P0Mp8lZaCaavvQFaZSuUaDm/dpQtmOyIw==ZW4tVVM=

Extracted

Path

C:\PerfLogs\DECRYPT_YOUR_FILES.HTML

Ransom Note
Attention ! All your files have been encrypted. Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets. That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us. Getting a decryption of your files is - SIMPLY task. That all what you need: 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] 2. For test, decrypt 2 small files, to be sure that we can decrypt you files. 3. Pay our services. 4. GET software with passwords for decrypt you files. 5. Make measures to prevent this type situations again. IMPORTANT(1) Do not try restore files without our help, this is useless, and can destroy you data permanetly. IMPORTANT(2) We Cant hold you decryption passwords forever. ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. Your ID_KEY: VYk00RxSdZ5RXE0P8x3Sia8cjYtpRJpnKJi7i+IE18JmSyAFYzzCGHjC+UFMJOncP0tErArlu9Zyr6gCzHtcM6hHq9i2TV6817cv++c/j8epFhC4SZOrAFqTYqmWBYpy61QQpZ5vKmSJMogBnyNJwXbJh6D+/CVFxI3f8DWaJJpmtzkODpZj+xrjuS68TF5LMBWWFWa+zNu2pfQ44Jo+gcpbdpLZOCb3RUp270mNkq+AmsRqY2INL34+pqAbNYjbUJigkWHd03QagzjNrxuIX+TCjbWev5GlzVLZ7SMGfr2aJXDKpZP4hjZypb83vCLCf8QyKxhHXBd/L1H+qjfClQ==ZW4tVVM=

Targets

    • Target

      yell talk.txt

    • Size

      2KB

    • MD5

      d9cdff5e3d3346eb6655e22a295968b0

    • SHA1

      bc73870a38539b18c98ebbabfea3187253fe52e3

    • SHA256

      61ecaf7009675e044f87dfe1d91ac4697812b68112ff52bf8ca90bae96cd495e

    • SHA512

      d82c9976dd41933ccaf4d37bc856cfe7a70fc819137a171ac339ba38fdf74a5a80b7d6a565c21ea7525ad5d2c69d6e70b59ce6753b126a5fea55867b0fc58a45

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Fantom family

    • Renames multiple (270) 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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops desktop.ini file(s)

    • 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