Analysis
-
max time kernel
152s -
max time network
77s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
20-10-2021 09:41
General
-
Target
BS.exe
-
Size
53KB
-
MD5
dd8cf1022f30071d6454e56340384f24
-
SHA1
afa5ab499d41e91d1eae3427232460ebf6293d75
-
SHA256
b9b81fa1b1e8ff2c42b654855121c7b38d8a876ccfe8b43ac48825a33a748128
-
SHA512
55aa1b193a6e9a40b252e93fb5d4841ea9eb7da0350c8a053524682e9aab7ebb2e0a6b7a72876631b09eb5c1f49bb06dc2b3595eead4334fb122a6bb8bfc7b0e
Score
10/10
Malware Config
Extracted
Path
C:\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;">����������12 64 8C 0D C2 49 7B 8B 35 61 40 B9 9D C0 0E 32
29 98 16 01 8C DF 50 E4 35 0F A6 D0 CE 24 6F 55
95 7B 52 2D C2 2B 45 0C FD C8 24 62 05 F9 39 68
0A 76 7B C3 61 C9 72 CC D3 E3 11 FF E7 3B 5D 18
E9 57 1A B1 7A 41 49 03 D4 1C 73 AA 2B C3 D3 1C
CF 02 39 3C 13 6C 13 98 CF 09 02 45 13 E7 AC 06
23 8C AE 1F FD 9F FB C1 09 13 7A 1C C1 FE BE ED
8D CE CE 2A A8 2A 30 A0 86 92 EE 70 BD CD 93 EE
19 E7 0F 8F 8E C6 E9 2C 31 26 37 96 E5 9D 8A BA
94 2C 0A F0 1F 0D FC 6F 71 56 25 EE BC 34 A5 DA
2A 12 29 D2 F4 F9 42 9E 6F B7 71 6F CF 50 8E 7E
78 3A F3 C0 E6 BC A9 78 C0 56 5A 0F 68 97 A5 0E
38 F6 AC F5 0A BD 87 71 F8 45 67 B0 94 EA DF 19
D9 64 F5 59 4F E5 F1 FE DF CE 17 AA 74 7C AA 29
C1 7E E2 F0 C3 63 5A 0E C9 F8 A5 48 26 B0 85 6E
0F 22 23 25 34 4A 2A E0 61 D8 A4 B7 95 81 0B 52
</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>.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>.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="behappy123456@cock.li ">behappy123456@cock.li </a>
<br><a href="chinchoppa2299gayspilsss@yopmail.com">chinchoppa2299gayspilsss@yopmail.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>
�����������
Emails
href="behappy123456@cock.li
">behappy123456@cock.li
href="chinchoppa2299gayspilsss@yopmail.com">chinchoppa2299gayspilsss@yopmail.com</a>
Signatures
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Blocklisted process makes network request 2 IoCs
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Modifies extensions of user files 14 IoCs
Ransomware generally changes the extension on encrypted files.
-
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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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 28 IoCs
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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). Likely ransomware behaviour.
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Modifies registry class 3 IoCs
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Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\BS.exe"C:\Users\Admin\AppData\Local\Temp\BS.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Windows\system32\gameux.dll,GameUXShim {868c988d-ecf6-40cd-b1ab-8c5f0607dd95};C:\Users\Admin\AppData\Local\Temp\BS.exe;10842⤵
- Blocklisted process makes network request
- Modifies registry class
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1084-54-0x0000000075FC1000-0x0000000075FC3000-memory.dmpFilesize
8KB
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memory/1880-55-0x0000000000000000-mapping.dmp