General

  • Target

    Fantom.zip

  • Size

    201KB

  • Sample

    220809-c6b5vsbgak

  • MD5

    1b218b677de0920cbda400413531d629

  • SHA1

    322531ec1e427c6582da131ecd1e06646d46a1a8

  • SHA256

    8b11977fad03dca09599067274a89de032aaf99c9c493aa68c3875f5af5628d4

  • SHA512

    d36fa15233e0063bada82a2198e7e77a8164722755a377e46f09f5d3b0517bd6275953a1694758400e3a83603c7057e9c6593e211ca4024a698376ff03f1bdca

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3440072777-2118400376-1759599358-1000\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>jG3V2VjJzKJaSGH9l115f2UeU4pfKSBUWG8tzbiO1KOLVdDdwvvZUa/PyJj87zEJ06NNsTZtwQNjxzmpIsV4vCcMsjUIVOsjvHBPZYg+51uhcwdKIw89PWAmc2LFLU/0Hz7v4QCdaVBMs4/95KFQ5tMfgo7QotntAiv9ImomAsMDyTz6OflVmvEuoVhOsiyLsW5Q4GKgCOhJfU7pRpgCQvLidv9ITXVTNR6z3vNCr5mwWCuE5lVr6RFzfcKvx/DHzTnOahkLpygl2/9y6RF1ESgm0dkeJrb8jErt37tZHbYayUSLoBlXUeiAwssFNQiHS8lwNhIYPYBENjv8lhHklg==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2372564722-193526734-2636556182-1000\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>gPnpnoUrgj5XPEOeM5CQxmNNhiI0lfAMmrj/xgSi6zykDfqv5gP3GIXiKmzVJ2CGHlsnKhCsXSTT4eZSt/RuSLVtylgv4iqCGDJuZd7HVO0OlHxClzlOU0bTevwskKdc/BtBrhhyPHIx3epMBvE+EabQF89xhgS24lCIwn3o/yKSSTRgam9h4S8rQMppTMY0dqonYsrZK3nyjYeuDlNm7ULAMLwL6wSqh5LdKzzc3ONSmHmfYJ5mZh9dgSLh0oLoSgRSP6aoQMz2Fg5FpB3yZwSwwBUwqWUZq+sftdAzFNuS6oY/NHOxLvB80syScUsrBrcb1Ca0Jn+Lq6GA6EKUuQ==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Targets

    • Target

      Fantom.exe

    • Size

      261KB

    • MD5

      7d80230df68ccba871815d68f016c282

    • SHA1

      e10874c6108a26ceedfc84f50881824462b5b6b6

    • SHA256

      f4234a501edcd30d3bc15c983692c9450383b73bdd310059405c5e3a43cc730b

    • SHA512

      64d02b3e7ed82a64aaac1f74c34d6b6e6feaac665ca9c08911b93eddcec66595687024ec576e74ea09a1193ace3923969c75de8733859835fef45335cf265540

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Checks computer location settings

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

    • 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.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v6

Tasks