medusalocker | 1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281

Resubmissions

30-11-2023 10:51

231130-mx5qxsah79 10

29-06-2023 20:59

230629-zs72psfa95 10

29-06-2023 16:29

230629-tzp7ksec27 10

Analysis

max time kernel
1800s
max time network
1233s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2023 20:59

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General

Target

medusa.exe
Size

235KB
MD5

f6f120d1262b88f79debb5d848ac7db9
SHA1

1339282f9b2d2a41326daf3cf284ec2ae8f0f93c
SHA256

1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281
SHA512

1067c1a73cf891d651fa007f4ccc4452f32801fe3859933ef1bcc00985e35ce016fa6c601c0e3c10df2080fc9b8a776b2f18d40bd64dfb98177ab638c4b545bd
SSDEEP

6144:c5vMUmRTTgwnfeP+Jx1cLNAIyBcc9WrEWUC4wQh/6BeX:/U8Tgufnx1cLNncgQWUUQh/+e

Score

10^/10

medusalocker evasion ransomware spyware stealer trojan upx

Malware Config

Extracted

Path

\Device\HarddiskVolume1\Boot\HOW_TO_RECOVER_DATA.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;">1087F9AC7D018DC3DE488E8D954C2D0E02A5C685590966B71042E41A861523D256AA39CEE93E12FFDE9FDCA560D72C0578ABE7A7F0CC9E01D73766723D29E3DD<br>666757EC29C36D9FD8B32E4F79DD0443DF1482678F239B0FD3565ED62C138F62AFD8B21893C00300259AC964BBADCFD95427E4C824BF6F759CCCA62D8A79<br>E8E636799A5087808F3A8040FD4A1A004A6C2AA15EE24E63FC751CC976D1F0A3141FB7B307B614B900D6D3B32FEC9C6D84930489C2E5C19FFD052C9335C6<br>AE33BA4816E205FE621391709628A5D2C9143D621C19744D36A34583BE12E658118FF30E4072D2C9E0F90796EFB998C7128F358A07685B689B67373C8B05<br>EDBFF9D01A4194511AA381F3F663BBCB2E282C8DF311C53E4FB9A1B69C4018C30CA3A57A1754F27C61F676BCB8970550E6AE11350A067A83E6F22072986B<br>451F0CF71027F9962FBED37B0B8CD96459C4A5540E4994629C9893E8A50968203204B7F9D065FE205AA0BC1F4991578423598CDDB51AC66020A400713816<br>9446991C13906C605D8D49C24A3DF0B44523416472909F2EAD88D632434F9EFBA8E5D0F4F6E3775D60B7E8998143B9C1B38A6B7FD4E68BCDC12858EF875E<br>C1F7761425DCB65A49109FF5BB92818076FAA68634EE24A5A4A5BA0DB58DD88A57AE9481073807A5CF684A7872920F2BA3D2B6E9B833D369EBB99E2B9F8D<br>984A49ADCD20247580D0E4E5B50B</span> <br>  </div> </div>  <div class="tabs">  <div class="tab"> <div id="tab-content1" class="content"> <div class="text">  <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>  <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>   </div> </div>  </div> </div> </body> </html>

Emails

href="[email protected]

">[email protected]

href="[email protected]

">[email protected]

Signatures

MedusaLocker
Ransomware with several variants first seen in September 2019.
ransomware medusalocker

MedusaLocker payload 50 IoCs

resource	yara_rule
behavioral2/memory/456-134-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-194-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-196-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-740-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-741-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-742-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-743-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-744-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/1996-747-0x00000000005A0000-0x0000000000652000-memory.dmp	family_medusalocker
behavioral2/memory/456-748-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-749-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-750-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-751-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-752-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-753-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-754-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-767-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-768-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-769-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-770-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-771-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-772-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-773-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-774-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-775-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-776-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-777-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-778-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-779-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-780-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-793-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-795-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-796-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-797-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-798-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-799-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-800-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-801-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-802-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-803-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-804-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-805-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-819-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-820-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-821-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-822-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-823-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-824-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/456-825-0x0000000000150000-0x0000000000202000-memory.dmp	family_medusalocker
behavioral2/memory/1204-875-0x00000000005A0000-0x0000000000652000-memory.dmp	family_medusalocker

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	medusa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	medusa.exe

Renames multiple (193) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\InstallUse.png => C:\Users\Admin\Pictures\InstallUse.png.marlock07	medusa.exe

Executes dropped EXE 2 IoCs

pid	Process
1996	svhost.exe
1204	svhost.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

UPX packed file 53 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/456-134-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-194-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-196-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-740-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-741-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-742-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-743-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-744-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/files/0x000a000000023101-745.dat	upx
behavioral2/files/0x000a000000023101-746.dat	upx
behavioral2/memory/1996-747-0x00000000005A0000-0x0000000000652000-memory.dmp	upx
behavioral2/memory/456-748-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-749-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-750-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-751-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-752-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-753-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-754-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-767-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-768-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-769-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-770-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-771-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-772-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-773-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-774-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-775-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-776-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-777-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-778-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-779-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-780-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-793-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-795-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-796-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-797-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-798-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-799-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-800-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-801-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-802-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-803-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-804-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-805-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-819-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-820-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-821-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-822-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-823-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-824-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/memory/456-825-0x0000000000150000-0x0000000000202000-memory.dmp	upx
behavioral2/files/0x000a000000023101-873.dat	upx
behavioral2/memory/1204-875-0x00000000005A0000-0x0000000000652000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	medusa.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-2890635272-812199704-3564780063-1000\desktop.ini	medusa.exe

Enumerates connected drives 3 TTPs 24 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\H:	medusa.exe
File opened (read-only)	\??\I:	medusa.exe
File opened (read-only)	\??\L:	medusa.exe
File opened (read-only)	\??\Q:	medusa.exe
File opened (read-only)	\??\R:	medusa.exe
File opened (read-only)	\??\T:	medusa.exe
File opened (read-only)	\??\Y:	medusa.exe
File opened (read-only)	\??\Z:	medusa.exe
File opened (read-only)	\??\P:	medusa.exe
File opened (read-only)	\??\S:	medusa.exe
File opened (read-only)	\??\U:	medusa.exe
File opened (read-only)	\??\W:	medusa.exe
File opened (read-only)	\??\F:	medusa.exe
File opened (read-only)	\??\A:	medusa.exe
File opened (read-only)	\??\B:	medusa.exe
File opened (read-only)	\??\G:	medusa.exe
File opened (read-only)	\??\J:	medusa.exe
File opened (read-only)	\??\M:	medusa.exe
File opened (read-only)	\??\N:	medusa.exe
File opened (read-only)	\??\O:	medusa.exe
File opened (read-only)	\??\X:	medusa.exe
File opened (read-only)	\??\E:	medusa.exe
File opened (read-only)	\??\K:	medusa.exe
File opened (read-only)	\??\V:	medusa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe
456	medusa.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2348	wmic.exe
Token: SeSecurityPrivilege	2348	wmic.exe
Token: SeTakeOwnershipPrivilege	2348	wmic.exe
Token: SeLoadDriverPrivilege	2348	wmic.exe
Token: SeSystemProfilePrivilege	2348	wmic.exe
Token: SeSystemtimePrivilege	2348	wmic.exe
Token: SeProfSingleProcessPrivilege	2348	wmic.exe
Token: SeIncBasePriorityPrivilege	2348	wmic.exe
Token: SeCreatePagefilePrivilege	2348	wmic.exe
Token: SeBackupPrivilege	2348	wmic.exe
Token: SeRestorePrivilege	2348	wmic.exe
Token: SeShutdownPrivilege	2348	wmic.exe
Token: SeDebugPrivilege	2348	wmic.exe
Token: SeSystemEnvironmentPrivilege	2348	wmic.exe
Token: SeRemoteShutdownPrivilege	2348	wmic.exe
Token: SeUndockPrivilege	2348	wmic.exe
Token: SeManageVolumePrivilege	2348	wmic.exe
Token: 33	2348	wmic.exe
Token: 34	2348	wmic.exe
Token: 35	2348	wmic.exe
Token: 36	2348	wmic.exe
Token: SeIncreaseQuotaPrivilege	2880	wmic.exe
Token: SeSecurityPrivilege	2880	wmic.exe
Token: SeTakeOwnershipPrivilege	2880	wmic.exe
Token: SeLoadDriverPrivilege	2880	wmic.exe
Token: SeSystemProfilePrivilege	2880	wmic.exe
Token: SeSystemtimePrivilege	2880	wmic.exe
Token: SeProfSingleProcessPrivilege	2880	wmic.exe
Token: SeIncBasePriorityPrivilege	2880	wmic.exe
Token: SeCreatePagefilePrivilege	2880	wmic.exe
Token: SeBackupPrivilege	2880	wmic.exe
Token: SeRestorePrivilege	2880	wmic.exe
Token: SeShutdownPrivilege	2880	wmic.exe
Token: SeDebugPrivilege	2880	wmic.exe
Token: SeSystemEnvironmentPrivilege	2880	wmic.exe
Token: SeRemoteShutdownPrivilege	2880	wmic.exe
Token: SeUndockPrivilege	2880	wmic.exe
Token: SeManageVolumePrivilege	2880	wmic.exe
Token: 33	2880	wmic.exe
Token: 34	2880	wmic.exe
Token: 35	2880	wmic.exe
Token: 36	2880	wmic.exe
Token: SeIncreaseQuotaPrivilege	1036	wmic.exe
Token: SeSecurityPrivilege	1036	wmic.exe
Token: SeTakeOwnershipPrivilege	1036	wmic.exe
Token: SeLoadDriverPrivilege	1036	wmic.exe
Token: SeSystemProfilePrivilege	1036	wmic.exe
Token: SeSystemtimePrivilege	1036	wmic.exe
Token: SeProfSingleProcessPrivilege	1036	wmic.exe
Token: SeIncBasePriorityPrivilege	1036	wmic.exe
Token: SeCreatePagefilePrivilege	1036	wmic.exe
Token: SeBackupPrivilege	1036	wmic.exe
Token: SeRestorePrivilege	1036	wmic.exe
Token: SeShutdownPrivilege	1036	wmic.exe
Token: SeDebugPrivilege	1036	wmic.exe
Token: SeSystemEnvironmentPrivilege	1036	wmic.exe
Token: SeRemoteShutdownPrivilege	1036	wmic.exe
Token: SeUndockPrivilege	1036	wmic.exe
Token: SeManageVolumePrivilege	1036	wmic.exe
Token: 33	1036	wmic.exe
Token: 34	1036	wmic.exe
Token: 35	1036	wmic.exe
Token: 36	1036	wmic.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 2348	456	medusa.exe	86
PID 456 wrote to memory of 2348	456	medusa.exe	86
PID 456 wrote to memory of 2348	456	medusa.exe	86
PID 456 wrote to memory of 2880	456	medusa.exe	88
PID 456 wrote to memory of 2880	456	medusa.exe	88
PID 456 wrote to memory of 2880	456	medusa.exe	88
PID 456 wrote to memory of 1036	456	medusa.exe	90
PID 456 wrote to memory of 1036	456	medusa.exe	90
PID 456 wrote to memory of 1036	456	medusa.exe	90

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	medusa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	medusa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	medusa.exe

C:\Users\Admin\AppData\Local\Temp\medusa.exe
"C:\Users\Admin\AppData\Local\Temp\medusa.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
PID:456
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2348
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1036

C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
1⤵
- Executes dropped EXE
PID:1996

C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
1⤵
- Executes dropped EXE
PID:1204

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
235KB

MD5
f6f120d1262b88f79debb5d848ac7db9

SHA1
1339282f9b2d2a41326daf3cf284ec2ae8f0f93c

SHA256
1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281

SHA512
1067c1a73cf891d651fa007f4ccc4452f32801fe3859933ef1bcc00985e35ce016fa6c601c0e3c10df2080fc9b8a776b2f18d40bd64dfb98177ab638c4b545bd

Download Submit
C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
235KB

MD5
f6f120d1262b88f79debb5d848ac7db9

SHA1
1339282f9b2d2a41326daf3cf284ec2ae8f0f93c

SHA256
1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281

SHA512
1067c1a73cf891d651fa007f4ccc4452f32801fe3859933ef1bcc00985e35ce016fa6c601c0e3c10df2080fc9b8a776b2f18d40bd64dfb98177ab638c4b545bd

Download Submit
C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
235KB

MD5
f6f120d1262b88f79debb5d848ac7db9

SHA1
1339282f9b2d2a41326daf3cf284ec2ae8f0f93c

SHA256
1bc0575b3fc6486cb2510dac1ac6ae4889b94a955d3eade53d3ba3a92d133281

SHA512
1067c1a73cf891d651fa007f4ccc4452f32801fe3859933ef1bcc00985e35ce016fa6c601c0e3c10df2080fc9b8a776b2f18d40bd64dfb98177ab638c4b545bd

Download Submit
C:\Users\Default\ntuser.dat.LOG2

Filesize
536B

MD5
709734d8e4aaf4da3200ca16c9d25016

SHA1
7a540a45643594f8d7fc1afed6132872eae86023

SHA256
c792586a0ec5b6b46cb4462709426c8ed2b0e17b36530aea181747f970b95f79

SHA512
52731572df805757e6d82234a30d01c9315144fde1dacd419c8b8a5f2ee4739b29d66ec04aaa35188533f4cb99f1b69e4bf0507a4081c09e0c925bd6750f4f89

Download Submit
\Device\HarddiskVolume1\Boot\HOW_TO_RECOVER_DATA.html

Filesize
4KB

MD5
0f3ccb2b4f2eee3edc8a7a430c93636b

SHA1
6ff91d68b557b262927517d7b00713635fe90429

SHA256
4ed876b316d0802c05a5d0c04e620791aaf8f96a9e026c4ccd0cc69c13fd711a

SHA512
3553f13912fb041146c2d4b8ed4cc56957a140b632f7ad740293c0889d1cd9a7e6cbc7e2bae2d250e271c3c5a30cf248bd343293f3146a49eb6a0bdd4b5acded

Download Submit
memory/456-773-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-744-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-776-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-743-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-777-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-740-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-196-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-194-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-748-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-749-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-750-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-751-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-752-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-753-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-754-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-778-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-768-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-769-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-770-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-771-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-772-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-134-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-774-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-775-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-742-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-741-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-767-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-779-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-780-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-793-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-795-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-796-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-797-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-798-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-799-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-800-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-801-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-802-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-803-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-804-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-805-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-819-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-820-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-821-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-822-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-823-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-824-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/456-825-0x0000000000150000-0x0000000000202000-memory.dmp

Filesize
712KB

Download
memory/1204-875-0x00000000005A0000-0x0000000000652000-memory.dmp

Filesize
712KB

Download
memory/1996-747-0x00000000005A0000-0x0000000000652000-memory.dmp

Filesize
712KB

Download