Analysis
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max time kernel
140s -
max time network
126s -
platform
windows10-1703_x64 -
resource
win10-20230915-en -
resource tags
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submitted
25-09-2023 03:09
General
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Target
fd71b1ab3e3823ccd88c0f406c30c4386074c36e1c0432e13121550cd655098f.exe
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Size
53KB
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MD5
5efa19dc204e46e8d8c57482f80e7a40
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SHA1
5c83b3ddc8417fe64e0bbd3495445ddcee52e35e
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SHA256
fd71b1ab3e3823ccd88c0f406c30c4386074c36e1c0432e13121550cd655098f
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SHA512
0cdf4a1263b9a341240acea245155f0afbaac864eccd1d9623a9a152a9287e8a65cd62f12804d5a1293c9d960a4958c2aa05a720f35d42699fec5d4ac0accfc1
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SSDEEP
768:FKcvuye1kVtGBk6P/v7nWlHznbkVwrEKD9yDwxVSHrowNI2tG6o/t84B5YW:F9eytM3alnawrRIwxVSHMweio3+
Score
10/10
Malware Config
Extracted
Path
C:\ProgramData\regid.1991-06.com.microsoft\how_to_back_files.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;">����������4D 67 23 2A 15 C0 18 24 08 25 33 93 BE 06 AB 5D
11 2E 5A 2F 07 06 20 7F BD 69 CB 67 96 AE 00 EF
C8 83 55 23 5E BC 77 D7 73 37 E6 E7 25 47 10 85
14 06 00 29 FE A9 33 AA E7 BC F9 F7 CF AE 9B E3
ED 5F 78 37 9D 42 77 FC 18 84 60 88 7D 58 AD FD
47 36 AD 0C 13 00 4F FC 80 5A B8 21 10 62 FC A5
93 70 7B 88 25 B9 8E E3 69 15 E7 08 96 51 77 C6
91 B9 A1 5F 1A 05 C7 2B 5B 5B A3 A8 9A 1F 43 F3
C1 C6 C1 D2 0C 1A 68 D3 C0 58 F3 F7 C1 EB FC B6
7C 43 C8 B9 1B 5B 8E 26 45 7A AD 7B 57 0E 78 B1
91 D0 B5 49 42 17 B0 C0 79 AF 15 E7 DC 9B E2 B6
9E 82 49 95 FB 4C 05 32 A8 8B FE D6 7F F6 EB 17
FD 82 2E 91 5A 90 94 8B 3C AD 62 DE 0B 17 26 C3
41 A5 4E CF 5C BA 77 6D E9 DE 1B A4 C0 39 F8 3E
5E 43 C5 AC E0 67 D2 A7 35 B6 B8 F2 C5 23 81 50
ED 63 04 69 61 B4 54 9B C8 82 FA B7 8F 52 01 63
</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<br>
</a>
4. Start a chat and follow the further instructions. <br>
<hr>
<b>If you can not use the above link, use the email:</b><br>
<a href="[email protected] ">[email protected] </a> <br>
<a href="[email protected] ">[email protected] </a> <br>
<p>* To contact us, create a new free email account on the site: <a href="https://protonmail.com">protonmail.com <br>
<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>
Emails
Signatures
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Renames multiple (7143) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\fd71b1ab3e3823ccd88c0f406c30c4386074c36e1c0432e13121550cd655098f.exe"C:\Users\Admin\AppData\Local\Temp\fd71b1ab3e3823ccd88c0f406c30c4386074c36e1c0432e13121550cd655098f.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\fd71b1ab3e3823ccd88c0f406c30c4386074c36e1c0432e13121550cd655098f.exe > nul2⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4KB
MD5262797936249af0fc5c36138847fb982
SHA1154ca864bf4e8878900a9b8a222b8aff1691d7f6
SHA256748da15758ce85368c01a6e16954982abdb2190c03d539e809f7467ca1e7e33d
SHA5125af30dc3353038caba17a52cfd873135de228e3b80b7a40378658c9e9085601049aa8f3bf7ac4ead7ee85da3d441711c7d2f984e9e055b96863acdc6db86bf06
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Filesize
56KB
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Filesize
56KB