Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 03:53

General

  • Target
    17b447b971a4977b2bfb2c28659aa1dd_JaffaCakes118.exe
  • Size 938KB
  • Sample240329-efm6jshf85
  • SHA256 5fa490668a9963e97d956f9a3b0c746b1d16eee9a73dfba875c9a3dc0e2c0d1b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • F:\README-FILE-JKRSODLE-1711684388.hta

Ransom Note
  • <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Atom Slio: Instructions</title> <HTA:APPLICATION APPLICATIONNAME="Atom Slio" SCROLL="yes" SINGLEINSTANCE="yes" WINDOWSTATE="maximize"> <style type="text/css"> .text{ text-align:center; } a { color: #04a; text-decoration: none; } a:hover { text-decoration: underline; } body { background-color: #e7e7e7; color: #222; font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif; font-size: 13pt; line-height: 19pt; } body, h1 { margin: 0; padding: 0; } hr { color: #bda; height: 2pt; margin: 1.5%; } h1 { color: #555; font-size: 14pt; } ol { padding-left: 2.5%; } ol li { padding-bottom: 13pt; } small { color: #555; font-size: 11pt; } .button:hover { text-decoration: underline; } .container { background-color: #fff; border: 2pt solid #c7c7c7; margin: 5%; min-width: 850px; padding: 2.5%; } .header { border-bottom: 2pt solid #c7c7c7; margin-bottom: 2.5%; padding-bottom: 2.5%; } .hr { background: #bda; display: block; height: 2pt; margin-top: 1.5%; margin-bottom: 1.5%; overflow: hidden; width: 100%; } .info { background-color: #f3f3fc; border: 2pt solid #bda; display: inline-block; padding: 1%; text-align: center; box-sizing:border-box; border-radius:20px; } .h { display: none; } .ml1{ position:absolute;width:50%;height:10rem;left:-211px;top:0;background:#f3f3fc;border:1px solid #cfd3da;box-sizing:border-box;padding:2% 2% } </style> </head> <body> <div class="container"> <div class="header"> <h1>Atom Slio</h1> <small id="title">Instructions</small> </div> <div class="text"> <span style="color:#f71b3a;font-size:40px">WARNING! YOUR FILES ARE ENCRYPTED AND LEAKED!</span> </div> <hr> <div class="info"> <p>We are AtomSilo.Sorry to inform you that your files has been obtained and encrypted by us.</p> <p>But don’t worry, your files are safe, provided that you are willing to pay the ransom.</p> <p>Any forced shutdown or attempts to restore your files with the thrid-party software will be <span style="color:#f71b3a">damage your files permanently!</span></p> <p>The only way to decrypt your files safely is to buy the special decryption software from us. </p> <p>The price of decryption software is <span style="color:#f71b3a">200000 dollars</span>. <br>If you pay within 48 hours, you only need to pay <span style="color:#f71b3a">50% off dollars</span>. No price reduction is accepted.</p> <p>We only accept Bitcoin payment,you can buy it from bitpay,coinbase,binance or others. </p> <p>You have five days to decide whether to pay or not. After a week, we will no longer provide decryption tools and publish your files</p> </div> <hr></hr> <div align="center"> <span style="color:#f71b3a;font-size:200%">Time starts at 0:00 on September 28</span> <hr></hr> <span style="color:#f71b3a;font-size:300%"> <a>Survival time:</a> <span id="td"></span> <span id="th"></span> <span id="tm"></span> <span id="ts"></span> </span> </div> <script type="text/javascript"> function getRTime(){ var EndTime= new Date('2021/09/28 00:00:00'); var NowTime = new Date(); var t =EndTime.getTime() - NowTime.getTime(); var d=Math.floor(t/1000/60/60/24); var h=Math.floor(t/1000/60/60%24); var m=Math.floor(t/1000/60%60); var s=Math.floor(t/1000%60); document.getElementById("td").innerHTML = d + " Day "; document.getElementById("th").innerHTML = h + " Hour "; document.getElementById("tm").innerHTML = m + " Min "; document.getElementById("ts").innerHTML = s + " Sec "; } setInterval(getRTime,1000); </script> <hr></hr> <p>You can contact us with the following email: <p><a href="mailto:[email protected]"><span class="info">Email:[email protected] </span></a></p> <p>If this email can't be contacted, you can find the latest email address on the following website:</p> <p><span class="info"><a href="http://mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion" target="_blank">http://mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion</a></span></p> <hr> <p>If you don’t know how to open this dark web site, please follow the steps below to installation and use TorBrowser:</p> <ol> <li>run your Internet browser</li> <li>enter or copy the address <a href="https://www.torproject.org/download/download-easy.html.en" target="_blank">https://www.torproject.org/download/download-easy.html.en</a> into the address bar of your browser and press ENTER</li> <li>wait for the site loading</li> <li>on the site you will be offered to download TorBrowser; download and run it, follow the installation instructions, wait until the installation is completed</li> <li>run TorBrowser</li> <li>connect with the button "Connect" (if you use the English version)</li> <li>a normal Internet browser window will be opened after the initialization</li> <li>type or copy the address in this browser address bar and press ENTER</li> <li>the site should be loaded; if for some reason the site is not loading wait for a moment and try again.</li> </ol> <p>If you have any problems during installation or use of TorBrowser, please, visit <a href="https://www.youtube.com/results?search_query=Install+Tor+Browser+Windows" target="_blank">https://www.youtube.com</a> and type request in the search bar "Install TorBrowser Windows" and you will find a lot of training videos about TorBrowser installation and use.</p> <hr> <p><strong>Additional information:</strong></p> <p>You will find the instructions ("README-FILE-#COMPUTER#-#TIME#.hta") for restoring your files in any folder with your encrypted files.</p> <p>The instructions "README-FILE-#COMPUTER#-#TIME#.hta" in the folders with your encrypted files are not viruses! The instructions "README-FILE-#COMPUTER#-#TIME#.hta" will help you to decrypt your files.</p> <p>Remember! The worst situation already happened and now the future of your files depends on your determination and speed of your actions.</p> </div> <span class="h">AESKEY</span> </body> </html>a:<asf>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</asf><csf>3</csf><pub>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</pub><bsf>JKRSODLE</bsf></span></body></html>
Emails

Extracted

Path
  • C:\Users\Public\ATOMSILO-README.hta

  • atomsilo

Ransom Note
  • Atom Slio Instructions WARNING! YOUR FILES ARE ENCRYPTED AND LEAKED! We are AtomSilo.Sorry to inform you that your files has been obtained and encrypted by us. But don’t worry, your files are safe, provided that you are willing to pay the ransom. Any forced shutdown or attempts to restore your files with the thrid-party software will be damage your files permanently! The only way to decrypt your files safely is to buy the special decryption software from us. The price of decryption software is 200000 dollars . If you pay within 48 hours, you only need to pay 50% off dollars . No price reduction is accepted. We only accept Bitcoin payment,you can buy it from bitpay,coinbase,binance or others. You have five days to decide whether to pay or not. After a week, we will no longer provide decryption tools and publish your files Time starts at 0:00 on September 28 Survival time: You can contact us with the following email: Email:[email protected] If this email can't be contacted, you can find the latest email address on the following website: http://mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion If you don’t know how to open this dark web site, please follow the steps below to installation and use TorBrowser: run your Internet browser enter or copy the address https://www.torproject.org/download/download-easy.html.en into the address bar of your browser and press ENTER wait for the site loading on the site you will be offered to download TorBrowser; download and run it, follow the installation instructions, wait until the installation is completed run TorBrowser connect with the button "Connect" (if you use the English version) a normal Internet browser window will be opened after the initialization type or copy the address in this browser address bar and press ENTER the site should be loaded; if for some reason the site is not loading wait for a moment and try again. If you have any problems during installation or use of TorBrowser, please, visit https://www.youtube.com and type request in the search bar "Install TorBrowser Windows" and you will find a lot of training videos about TorBrowser installation and use. Additional information: You will find the instructions ("README-FILE-#COMPUTER#-#TIME#.hta") for restoring your files in any folder with your encrypted files. The instructions "README-FILE-#COMPUTER#-#TIME#.hta" in the folders with your encrypted files are not viruses! The instructions "README-FILE-#COMPUTER#-#TIME#.hta" will help you to decrypt your files. Remember! The worst situation already happened and now the future of your files depends on your determination and speed of your actions. AESKEY
Emails
URLs
  • http://mhdehvkomeabau7gsetnsrhkfign4jgnx3wajth5yb5h6kvzbd72wlqd.onion

Signatures

  • AtomSilo

    Ransomware family first seen in September 2021.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17b447b971a4977b2bfb2c28659aa1dd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\17b447b971a4977b2bfb2c28659aa1dd_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\SYSTEM32\mshta.exe
      mshta "C:\Users\Public\ATOMSILO-README.hta"
      2⤵
        PID:5072
      • C:\Windows\SYSTEM32\mshta.exe
        mshta "C:\Users\Public\ATOMSILO-README.hta"
        2⤵
          PID:2980
        • C:\Windows\SYSTEM32\mshta.exe
          mshta "C:\Users\Public\ATOMSILO-README.hta"
          2⤵
            PID:1596
          • C:\Windows\SYSTEM32\mshta.exe
            mshta "C:\Users\Public\ATOMSILO-README.hta"
            2⤵
              PID:4424
            • C:\Windows\SYSTEM32\mshta.exe
              mshta "C:\Users\Public\ATOMSILO-README.hta"
              2⤵
                PID:1664
              • C:\Windows\SYSTEM32\mshta.exe
                mshta "C:\Users\Public\ATOMSILO-README.hta"
                2⤵
                  PID:2812
                • C:\Windows\SYSTEM32\mshta.exe
                  mshta "C:\Users\Public\ATOMSILO-README.hta"
                  2⤵
                    PID:3604
                  • C:\Windows\SYSTEM32\mshta.exe
                    mshta "C:\Users\Public\ATOMSILO-README.hta"
                    2⤵
                      PID:4696
                    • C:\Windows\SYSTEM32\mshta.exe
                      mshta "C:\Users\Public\ATOMSILO-README.hta"
                      2⤵
                        PID:1276
                      • C:\Windows\SYSTEM32\mshta.exe
                        mshta "C:\Users\Public\ATOMSILO-README.hta"
                        2⤵
                          PID:2160
                        • C:\Windows\SYSTEM32\cmd.exe
                          cmd /c ping 127.0.0.1 -n 6 && del "C:\Users\Admin\AppData\Local\Temp\17b447b971a4977b2bfb2c28659aa1dd_JaffaCakes118.exe"
                          2⤵
                          • Suspicious use of WriteProcessMemory
                          PID:4284
                          • C:\Windows\system32\PING.EXE
                            ping 127.0.0.1 -n 6
                            3⤵
                            • Runs ping.exe
                            PID:3576

                      Network

                            MITRE ATT&CK Enterprise v15

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            ATOMSILO-README.hta

                            • Path C:\Users\Public\ATOMSILO-README.hta
                            • Size 6KB
                            • SHA256 a87a80d452899f4c98aee55cefcce897faca567e8e9763ed20f41f7dc7b48071
                            • MD5 SHA1 SHA512 SSDEEP

                            README-FILE-JKRSODLE-1711684388.hta

                            • Path F:\README-FILE-JKRSODLE-1711684388.hta
                            • Size 11KB
                            • SHA256 61f2f3789e537f61dc192901ef813ffa6256e3325aa3ba333ccfa0e78485ff98
                            • MD5 SHA1 SHA512 SSDEEP