Analysis
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max time kernel
154s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
-
submitted
11-12-2022 23:15
General
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Target
fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
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Size
669KB
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MD5
489e246b8f55137cd70e4b2d718ff85f
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SHA1
444e3fd11ac385ab333db41420e5c4fd2e47a5ba
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SHA256
fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd
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SHA512
25301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7
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SSDEEP
12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DRKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWMKrKe
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;
word-break: break-all;
}
.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;">0F905DD0C4C6EE52B91999665AE9C2964C79094819692E3FBD15718B11D7DE74EEF5486783BC1D47EAF82E7BA26738ED737BC1A703BA0B10A642FF5AEC923B15<br>9713C3361F2A504ABAB43B2300B9D94DD1EA7211BA4BD08EC4536CD6E1F6552B761C7DB1FAFBBA542BE90033CB8C5DE7206457C8AF42A0CB3BF5585C93A4<br>AF2637801A73FB91756AB246C19B97F205C7DA887C900CD12E44A6C5AB48962E9AEAE77B46B0F69E0C664A4B4A5A0777A77E193043E59FA100377C51A1AB<br>DC340CD4AECF20E1CA803C5FD553249F1E64F81EE07273BF7B62332E74CDA53EF790F54678C08811CB19090ADB8A9765DAFA3DAF667F48BFB54685F065A3<br>2DB28CC5DB5354C7D94D24EF9EAEB89EFEABC5F698B622726FB0306B9CC7A744AB39D0E4053ADBD245AAC335A74FACFB6B8193E0A2C0040E3E450439A24A<br>7FE9E7B2DF0290B9B5EDE457F584DFCC76867846A8B4573273371301610249A4664E67635166B61AC8D636BCA76A8EF5C39F4A14EA5954C840419C07F81F<br>5050DCA1BC69375A2DA09AE92139F0AE0406590CD5F31772D209C269AC5AB25E3724A46F3B7604C8DA6A981F3C0E763B9081997956CC051F5EB6156D1D6D<br>BBF2D95357033AADD64101A6AF48A0557A5BE871B25441154BB525D6EEB5FEDB35BF132D5F200CBBDDF586304A8EA33D9007B59B68BFE1400E3741592057<br>E4B1B0EA5CED26B1F8A38E0B2623</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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MedusaLocker
Ransomware with several variants first seen in September 2019.
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MedusaLocker payload 2 IoCs
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UAC bypass 3 TTPs 2 IoCs
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Executes dropped EXE 1 IoCs
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Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
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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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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Drops desktop.ini file(s) 1 IoCs
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Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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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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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 63 IoCs
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Suspicious use of WriteProcessMemory 9 IoCs
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System policy modification 1 TTPs 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe"C:\Users\Admin\AppData\Local\Temp\fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe"1⤵
- UAC bypass
- Modifies extensions of user files
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\Wbem\wmic.exewmic.exe SHADOWCOPY /nointeractive2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\svhost.exeC:\Users\Admin\AppData\Roaming\svhost.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
669KB
MD5489e246b8f55137cd70e4b2d718ff85f
SHA1444e3fd11ac385ab333db41420e5c4fd2e47a5ba
SHA256fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd
SHA51225301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7
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Filesize
669KB
MD5489e246b8f55137cd70e4b2d718ff85f
SHA1444e3fd11ac385ab333db41420e5c4fd2e47a5ba
SHA256fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd
SHA51225301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7
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