Resubmissions

09-10-2022 16:47

221009-vatn5shdfj 10

03-10-2022 04:16

221003-evv5pshaen 10

30-09-2022 08:08

220930-j1j2vadghr 10

General

  • Target

    1e8bafd699de6d5987cfb2fdc138ae15422d8377614107348b905dd0f1bf7d77.exe

  • Size

    200KB

  • Sample

    220930-j1j2vadghr

  • MD5

    7372c9a138bb854972452263abab1dc5

  • SHA1

    ad247b2428fac6d07bdd9628cddaa18004840e6c

  • SHA256

    1e8bafd699de6d5987cfb2fdc138ae15422d8377614107348b905dd0f1bf7d77

  • SHA512

    3c882b3514c6314ebde04d35748464d4aba3eceb567c1b7ee87f4cf565cf192af3195d21151ef024b2fd19f151beb449fbd28105354a71764b46dbfba5fc1184

  • SSDEEP

    3072:dbOTRwYckApvw14pcODvX/kyeAYcWNzs2C3Zm4YvrCtMNX/eTvpdXfabI5F8lbj4:lOsZiKRJWWYj7eTxdH5qlGuqJH

Malware Config

Extracted

Family

crylock

Attributes
  • emails

    Raptorfiles@yahooweb.co

    Raptorfiles@yahooweb.co

  • 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 ud=0; var op=0xc7bf30; var zoc=0; function document.onkeydown() { var alt=window.event.altKey; if (event.keyCode==116 || event.keyCode==27 || alt && event.keyCode==115) { event.keyCode=0; event.cancelBubble=true; return false; } } function document.onblur() { alert('Attention! This important information for you!'); } function ChangeTime() { var sd = new Date('<%DOUBLE_DATETIME%>'); var dn = new Date(); if (sd.getTime()<dn.getTime()) { var dt=document.getElementById('pwr'); dt.innerHTML='<font color="red" size="5"><b>Price is raised!</b></font>'; dt.style.height=78; zoc=1; } else { var delta=sd.getTime()-dn.getTime(); delta=new Date(delta); 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; } var dt=document.getElementById('dt'); dt.innerHTML='<font face="monospace" color="#c2c2c2" size="4"><b>'+dd+' '+hh+':'+mm+':'+ss+'</b></font>'; } var sd = new Date('<%UNDECRYPT_DATETIME%>'); dn = new Date(); if (sd.getTime()<dn.getTime()) { var dt=document.getElementById('lctw'); dt.innerHTML='<font color="red" size="5"><b>Last chance to decrypt your files!</b></font>'; zoc=2; } else { var delta=sd.getTime()-dn.getTime(); delta=new Date(delta); 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; } var dt=document.getElementById('et'); dt.innerHTML='<font face="monospace" color="#c2c2c2" size="4"><b>'+dd+' '+hh+':'+mm+':'+ss+'</b></font>'; } } function getRandomArbitrary(min, max) { min = Math.ceil(min); max = Math.floor(max); return Math.floor(Math.random() * (max - min)) + min; } function Rndom() { document.getElementById("blumid").focus(); var bid=document.getElementById('blumid'); var bem=document.getElementById('blummail'); if (ud==0) { op=op-0x10; } else { op=op+0x10; } if (op<=0xc00000) { ud=1; } if (op>=0xc7bf30) { ud=0; } bid.style.backgroundColor=op; bem.style.backgroundColor=op; var xx=''; var i=0; while (i<19) { xx=xx+getRandomArbitrary(0,2); i=i+1; } if (zoc==0) { var dt=document.getElementById('rc'); rc.innerHTML='<font face="monospace" color="white" size="5"><b>'+xx+'</b></font>'; } else { if (zoc==1) { var dt=document.getElementById('rc'); rc.innerHTML='<font face="monospace" color="red" size="5"><b>Price is raised!</b></font>'; } else { var dt=document.getElementById('rc'); rc.innerHTML='<font face="monospace" color="red" size="4"><b>Price is raised!<br>Last chance to decrypt your files!</b></font>'; } } } function Start() { window.resizeTo(800,500) setInterval(ChangeTime,1000); 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-color:#0066CC;" OnLoad="Start()"> <div id="pwr" align="center" style="position:absolute; top:10px; left:10px; width:20%; border: 2px solid #c2c2c2;"> <font color="#c7bf30"><b>Payment will be raised after</b></font> <br> <div id="dt"> <font face="monospace" color="#c2c2c2" size="4">-- days --:--:--</font> </div> </div> <div align="center" style="position:absolute; top:10px; left:170px; width:58%;"> <font face="monospace" color="white" size="4"><b>Your files have been encrypted...</b></font> </div> <div align="center" style="position:absolute; top:60px; left:170px; width:58%;"> <div id="rc"> <font face="monospace" color="white" size="5"><b>00000000000000000000</b></font> </div> </div> <div id="lctw" align="center" style="position:absolute; top:10px; left:620px; width:20%; border: 2px solid #c2c2c2;"> <font color="#c7bf30"><b>Your files will be lost after</b></font> <br> <div id="et"> <font face="monospace" color="#c2c2c2" size="4">-- days --:--:--</font> </div> </div> <div style="background-color:white;overflow-x:hide; overflow-y:scroll; position:absolute; top:100px; left:10px; width:768px; height:320px"> Decrypt files? Write to this mails: <font face="monospace" OnClick="copytext('<%MAIN_CONTACT%>')"><b><%MAIN_CONTACT%></b></font> or <font face="monospace" OnClick="copytext ('<Raptorfiles@yahooweb.co>')"><b><Raptorfiles@yahooweb.co></b></font>. Telegram <font face="monospace" OnClick="copytext('@Fileraptor')"><b>@Fileraptor</b></font>. <br> You unique ID <font face="monospace" OnClick="copytext('[<%HID%>]')"><b>[<%HID%>] <font size="2">[copy]</font></b></font> </div> <div title="Click to copy" OnClick="copytext('[<%HID%>]')" id="blumid" style="cursor:pointer;background-color:#c7bf30; position:absolute; top:430px; left:10px; width:380px; height:20px"> <b>Your ID [<%HID%>] <font size="2">[copy]</font></b> </div> <div title="Click to copy" OnClick="copytext('<%MAIN_CONTACT%>')" id="blummail" style="cursor:pointer;background-color:#c7bf30; position:absolute; top:430px; left:400px; width:380px; height:20px"> <b>Write to <%MAIN_CONTACT%> <font size="2">[copy]</font></b> </div> </body> </html>

rsa_pubkey.plain

Targets

    • Target

      1e8bafd699de6d5987cfb2fdc138ae15422d8377614107348b905dd0f1bf7d77.exe

    • Size

      200KB

    • MD5

      7372c9a138bb854972452263abab1dc5

    • SHA1

      ad247b2428fac6d07bdd9628cddaa18004840e6c

    • SHA256

      1e8bafd699de6d5987cfb2fdc138ae15422d8377614107348b905dd0f1bf7d77

    • SHA512

      3c882b3514c6314ebde04d35748464d4aba3eceb567c1b7ee87f4cf565cf192af3195d21151ef024b2fd19f151beb449fbd28105354a71764b46dbfba5fc1184

    • SSDEEP

      3072:dbOTRwYckApvw14pcODvX/kyeAYcWNzs2C3Zm4YvrCtMNX/eTvpdXfabI5F8lbj4:lOsZiKRJWWYj7eTxdH5qlGuqJH

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • 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

    • Reads user/profile data of web browsers

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

    • Creates a large amount of network flows

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

    • Drops desktop.ini file(s)

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

2
T1107

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Network Service Scanning

1
T1046

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks