General

  • Target

    f05df52a73ea28f25d0a85f927f2444a_JaffaCakes118

  • Size

    678KB

  • Sample

    240415-fmz95ahg2x

  • MD5

    f05df52a73ea28f25d0a85f927f2444a

  • SHA1

    a5c00571f42bad2f17db4d4032b07318abc6f7f1

  • SHA256

    1e2335fef46f7320069623fff6702acb41c2877aff5fec83d94a561af37c3c7a

  • SHA512

    0b2a3a0bde6fcc23565ccdb1df49727930ad53345f91a3450455d0e8fb431a59af74a169d8c6ae2195afc340d7fde42969638f5d4de5501d1f75737be625e0b2

  • SSDEEP

    12288:cPJ4U0TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuYJVoM7:JzTYVQ2qZ7aSgLwuVfstRJLHYM

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Recovery_Instructions.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">B9FB6A79E770E88176B8271FBDC1DD37B5985B6ABC3089E9DCF545D99AD879F5942E93DFFF7183D523648D1A46131074805CF4B96F176AEDDB1F0631ABF5DB2C<br>5643C119C8B8112B7B5E27DF969A16C1F6F032DC7CD835F80515955F6961545F9B06A29F031A8697222F9632FA25E8C11D7A322B23E40025D36DFC9DA694<br>5D033216E35A80FA0CDFE37AFB8E92950513812BF3C0387E60ED4160165FBCD5095ADA872D8C6C8264F0AE51A30DCD8D1BDCEB59D2B5675D63611F3C88BD<br>79EA8676287118AA82D05502234D80CF00130AC613F15342D23073C70D81160FD39431E66569A7E7499D92D154786906DF4D127BD9A7C37D77291EF59D08<br>2C813AC5E93B24FB76715C20F26D28A1EC21BE20DD2E0C7A7D6AD70BA3A1A15C260781B7E49027913804DF0795242633B6DE3E48AA5B4F06BBCA0D10E187<br>1A969B63BBFF397DBCC14288E1577A58413ADF52D9CB01411EC6133E09E6E745A1D9AAA5E503846494BC9D334E683E0335CECC6822A5E359686419D608DB<br>7FF00BE45F6B8D3943D461233E847D308F68256684C37582EF12609E3DBB5710163DE6D0BD0D970AE47AA0310521563CA139E4FE8557D9F40741DA972597<br>87A0CB955E27FB1768ECA3FD5A70AD9F3C3D35E286801B5BE074AFB440C4272EB272EA966596DEEE5CBF86FB6689BD7E4FB5E9E06F23B7E012512E489C41<br>D26F70AD4D68F43BF28853733B6B</span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>All your important files have been encrypted!</b><br><br> <hr> Your files are safe! Only modified. (RSA+AES)<br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMANENTLY CORRUPT IT.<br> DO NOT MODIFY ENCRYPTED FILES.<br> DO NOT RENAME ENCRYPTED FILES.<br><br> No software available on internet can help you. We are the only ones able to<br> solve your problem.<br><br> We gathered highly confidential/personal data. These data are currently stored on<br> a private server. This server will be immediately destroyed after your payment.<br> If you decide to not pay, we will release your data to public or re-seller.<br> So you can expect your data to be publicly available in the near future..<br><br> We only seek money and our goal is not to damage your reputation or prevent<br> your business from running.<br><br> You will can send us 2-3 non-important files and we will decrypt it for free<br> to prove we are able to give your files back.<br><br> <!--text data --> <hr> <b>Contact us for price and get decryption software.</b><br><br> <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><br> * Note that this server is available via Tor browser only<br><br> Follow the instructions to open the link:<br> 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site.<br> 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.<br> 3. Now you have Tor browser. In the Tor Browser open <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><br> 4. Start a chat and follow the further instructions. <br><br> <hr> <b>If you can not use the above link, use the email:</b><br> <a href="diniaminius@winrof.com ">diniaminius@winrof.com </a> <br><a href="soterissylla@wyseil.com">soterissylla@wyseil.com</a> <br> <b>* To contact us, create a new free email account on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b> IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.</b><br> </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html> http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-QfMnbn6oHy8TQG6yFjpikf8IExakEtBq
Emails

href="diniaminius@winrof.com

">diniaminius@winrof.com

href="soterissylla@wyseil.com">soterissylla@wyseil.com</a>

URLs

http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-QfMnbn6oHy8TQG6yFjpikf8IExakEtBq

Extracted

Path

\Device\HarddiskVolume1\Boot\Recovery_Instructions.html

Ransom Note
<html> <style type="text/css"> body { background-color: #f5f5f5; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ display: block; margin: auto; } .tabs1 .head{ text-align: center; float: top; padding: 0px; text-transform: uppercase; font-weight: normal; display: block; background: #81bef7; color: #DF0101; font-size: 30px; } .tabs1 .identi { font-size: 10px; text-align: center; float: top; padding: 15px; display: block; background: #81bef7; color: #DFDFDF; } .tabs .content { background: #f5f5f5; /*text-align: center;*/ color: #000000; padding: 25px 15px; font-size: 15px; font-weight: 400; line-height: 20px; } .tabs .content a { color: #df0130; font-size: 23px; font-style: italic; text-decoration: none; line-height: 35px; } .tabs .content .text{ padding: 25px; line-height: 1.2; } </style> <body> <div class="tabs1"> <div class="head" ><b>Your personal ID:</b></div> <div class="identi"> <span style="width:1000px; color: #ffffff; font-size: 10px;">1C225213B3A8679A4BEE59200F6685CFE06EA71A9949D7E0E4D6DEA36CF98FACD5EE664633EC95F0506B61DE212E3EC960B3AAAFB10940C613F3A5AA8564C8EB<br>19EAC7B2CF22865C09BEF248B8E616782BED41AD4382B5AB23AB1604504D65A74C21A8BAB988F145738C9B628E0374576A08289B016AB31DD122EE3B58E6<br>8AA02E696DAFB5BC7796D70D2FCDC767F87D4FD7F7E2C45C8FFF5E261FAACF73EF371CE1AE8E05F23170112B2A7C38EE644CD8AEAF58EF54CCFF16C6F80B<br>355733395B01B4B1ADD9276428DAE1F1005BC90E2FC9D684FA90F7A5BE018C734B14CC6161C2A03115E6176EEE00FA7B59E7690231142A3CBCDC4126B0AF<br>38D59682FF77417DE44FF04C2FDD97CA81486DDA1C1240D430EEA57E9C41EFA54ECC97EC35610E9E6392B3E357F0D1B5963131AB507E74E136AD3626DD69<br>FD001F309F8C9180BC97326FEE6B744D340EEA36FEB2C55136838ADB90B2E5CFDFC1052B575F2C0A0A7808C9A4B885A641B248C4CBDB3C4D41E5B1CAE2CD<br>76D4F75CED135F0B3A0C12BE04FD7F775A8F14A14275A9F99C31430FF89A687BEC57C12004CB5E109FFDC90641B9EA69C253570405BA80F10E4255436D69<br>803DDC5DF6CC115D5B45D3BABCD0C8CF8770C889C9D32CA9689DAED42FBBCCFC17037EAC37514D15F5BCC83AF50FFCF93555CFB35CE4E906D08B04AFFA22<br>B2E8770AF8C46A17F3D027CBE131</span> <br> <!-- !!! dont changing this !!! --> </div> </div> <!-- --> <div class="tabs"> <!--tab--> <div class="tab"> <div id="tab-content1" class="content"> <div class="text"> <!--text data --> <b>/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\</b><br> <b>All your important files have been encrypted!</b><br><br> <hr> Your files are safe! Only modified. (RSA+AES)<br><br> ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE<br> WILL PERMANENTLY CORRUPT IT.<br> DO NOT MODIFY ENCRYPTED FILES.<br> DO NOT RENAME ENCRYPTED FILES.<br><br> No software available on internet can help you. We are the only ones able to<br> solve your problem.<br><br> We gathered highly confidential/personal data. These data are currently stored on<br> a private server. This server will be immediately destroyed after your payment.<br> If you decide to not pay, we will release your data to public or re-seller.<br> So you can expect your data to be publicly available in the near future..<br><br> We only seek money and our goal is not to damage your reputation or prevent<br> your business from running.<br><br> You will can send us 2-3 non-important files and we will decrypt it for free<br> to prove we are able to give your files back.<br><br> <!--text data --> <hr> <b>Contact us for price and get decryption software.</b><br><br> <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><br> * Note that this server is available via Tor browser only<br><br> Follow the instructions to open the link:<br> 1. Type the addres "https://www.torproject.org" in your Internet browser. It opens the Tor site.<br> 2. Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.<br> 3. Now you have Tor browser. In the Tor Browser open <a>qd7pcafncosqfqu3ha6fcx4h6sr7tzwagzpcdcnytiw3b6varaeqv5yd.onion</a><br> 4. Start a chat and follow the further instructions. <br><br> <hr> <b>If you can not use the above link, use the email:</b><br> <a href="diniaminius@winrof.com ">diniaminius@winrof.com </a> <br><a href="soterissylla@wyseil.com">soterissylla@wyseil.com</a> <br> <b>* To contact us, create a new free email account on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b> IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.</b><br> </div> </div> </div> <!--tab--> <!--text data --> </div> </div> <!--tab--> </div> </div> </body> </html> http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-nXcGsE55VeAXETpsoOuMNRQsRevgbSNT
Emails

href="diniaminius@winrof.com

">diniaminius@winrof.com

href="soterissylla@wyseil.com">soterissylla@wyseil.com</a>

URLs

http://gvlay6u4g53rxdi5.onion/21-9wA3X0WIwPScg5iK8DAPnytF2A39PT2k-nXcGsE55VeAXETpsoOuMNRQsRevgbSNT

Targets

    • Target

      f05df52a73ea28f25d0a85f927f2444a_JaffaCakes118

    • Size

      678KB

    • MD5

      f05df52a73ea28f25d0a85f927f2444a

    • SHA1

      a5c00571f42bad2f17db4d4032b07318abc6f7f1

    • SHA256

      1e2335fef46f7320069623fff6702acb41c2877aff5fec83d94a561af37c3c7a

    • SHA512

      0b2a3a0bde6fcc23565ccdb1df49727930ad53345f91a3450455d0e8fb431a59af74a169d8c6ae2195afc340d7fde42969638f5d4de5501d1f75737be625e0b2

    • SSDEEP

      12288:cPJ4U0TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuYJVoM7:JzTYVQ2qZ7aSgLwuVfstRJLHYM

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker payload

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (199) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

MITRE ATT&CK Matrix ATT&CK v13

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

2
T1112

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

System Information Discovery

3
T1082

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks