Behavioral task
behavioral1
Sample
svchost.exe
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
svchost.exe
Resource
win10v2004-20220722-en
General
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Target
svchost.exe
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Size
213KB
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MD5
39f34aa65e3a95a53f3ec0675fc37905
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SHA1
b8206089a3841464c72ee695951854dfe08a82cd
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SHA256
8e7393013f240334efe2ca52c8a3554628c479becab2b691d114e1e8b3ccd51d
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SHA512
7c45d8ba6f080cccaaa3c663d44a796c077f786f48cd392bcb9fa7e60d3b424aa90ecb1ed3c1c810b1607610db42a59eb0a9cc452579e454ca6443b2b249b2cb
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SSDEEP
3072:wrOXBojZkjeAO3hqwiABefmhDWUlWWpc3UMa9TYMG0y5jW/QsKIrDLJBrcRaRip5:EOXPRDgMcWsZYMgIrsjpJek
Malware Config
Extracted
crylock
- emails
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ransomnote
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html xmlns="http://www.w3.org/1999/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+' '+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!'); } var countDownDate = new Date().getTime() + 345600000; var x = setInterval(function() { var now = new Date().getTime(); var distance = countDownDate - now; var days = Math.floor(distance / (1000 * 60 * 60 * 24)); var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)); var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60)); var seconds = Math.floor((distance % (1000 * 60)) / 1000); document.getElementById("timer").innerHTML = days + "d " + hours + "h " + minutes + "m " + seconds + "s "; if (distance < 0) { clearInterval(x); document.getElementById("timer").innerHTML = "EXPIRED"; } }, 1000); </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: 16px; margin-top: 24px;">Time</b> <b style="display: block; font-size: 16px;">left for payment</b> <b id="timer" style="display: block; font-size: 16px;"></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">%RESERVE_CONTACT%</span>.</div> </div> <div style="float: right; width: 230px;"> <div style="background-color: #F53636;padding:7px;" id="pwr"> <div style="font-size: 16px; text-align: center; display: block; font-weight: bold;color: #ffffff;" id="discount">We've copied all of your documents, databases, and other essential files.</div> <div id="timer_discount" style="margin-top: 10px;padding: 5px 0; text-align: center; font-size: 12px; font-weight: bold; color: #ffffff;">If you try to cheat us or do anything else besides our offer, we'll use the info we have against you.</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=" font-size: 20px; padding-top: 3px;text-align:center;" id="text_file_lost">You have only four days to make the right choice! If we won't receive your payment within this period, your domain network can be attacked again. </div> <div style="margin-top: 10px;color: #ffffff; font-size: 20px;font-weight:bold;text-align:center;text-align:center;">Hurry up!</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
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Crylock family
Files
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svchost.exe.exe windows x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 151KB - Virtual size: 151KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 5KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 12B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 9KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 44KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ