medusalocker | fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd

General

Target

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
Size

669KB
MD5

489e246b8f55137cd70e4b2d718ff85f
SHA1

444e3fd11ac385ab333db41420e5c4fd2e47a5ba
SHA256

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd
SHA512

25301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7
SSDEEP

12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DRKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWMKrKe

Score

10^/10

medusalocker evasion ransomware trojan

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-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;">D183EED87A8F52C5A95B60199D149EF8A8D809E61A796677251E57A4245B0AFFF7CB0B41C2C3347C7AFFD3440A8BF7C136888C6FA91313C992385EA8C197CFD5<br>B055B32BF869E5EE5D57CA0DCC2F0FC6912BAB244F4243550D561024BD7B895A76CD7FE8A5DA92E6638EF07F1B25EB4FCF25F09223BE456FABED19A80BBB<br>805F69642B1E428DB1B21720724BB652E13775B11DE724EDF90ABC48717DBC65CFAA10E7AF5FB43092E4AA7DCE9A675A850625740BAAA985ACAB9EA548AD<br>180ECA8FEA5580F7EE90021C200A002FE289C2212A073E74787B57502B7E7E20004AC81429786C50B32FDECD2791C1FA69CD3AD6A0E0BA6F3ECD2F38FB8A<br>0E0D03355470D480F0298AD5BD6C2E92D6FF6C6C4938E1BB405130E5E030275CED612AD9AB1055C9534DBDD8842855AD74FB6CAFF4EBAA88EAF011A1642F<br>0201317435A8573113DB35E708C44958A13BC541B3A6D850187103A55839CE7D11F62EF9159F395CCD2AD06B2AC17C79E5CDDEB02793391B3969BE5DB9AA<br>BBBE9D28E2A9D3D06A4B33FF9138A027B6CA109357A898F2DBEA31600E755027E3D1760D660AAD99BBCD75BAD040DA8FEFDA0BCA298258BB67B4C24C59C0<br>B883E77517011D2C0CD1AD9AF677EBAE093C3DCB8E18B8C332F3220751A11B519EAE33732BAA325A0BA6F224212802BE7E3E554E8060784A60946BD71E8F<br>18A2B8F4C8BAC49666A7425BA54A</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="ithelp02@decorous.cyou ">ithelp02@decorous.cyou </a> <br> <a href="ithelp02@wholeness.business ">ithelp02@wholeness.business </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="ithelp02@decorous.cyou

">ithelp02@decorous.cyou

href="ithelp02@wholeness.business

">ithelp02@wholeness.business

Signatures

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

MedusaLocker payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\svhost.exe	family_medusalocker
C:\Users\Admin\AppData\Roaming\svhost.exe	family_medusalocker

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid process

1428 svhost.exe

pid	process
1428	svhost.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-999675638-2867687379-27515722-1000\desktop.ini	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.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

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

description	ioc	process
File opened (read-only)	\??\F:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\G:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\T:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\K:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\O:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\V:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\Z:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\A:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\B:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\H:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\L:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\M:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\N:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\P:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\W:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\E:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\I:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\J:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\X:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\U:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\Y:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\Q:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\R:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
File opened (read-only)	\??\S:	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 3 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exevssadmin.exe

pid process

1572 vssadmin.exe
1012 vssadmin.exe
1652 vssadmin.exe

pid	process
1572	vssadmin.exe
1012	vssadmin.exe
1652	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

pid	process
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

vssvc.exewmic.exewmic.exewmic.exe

description	pid	process
Token: SeBackupPrivilege	1096	vssvc.exe
Token: SeRestorePrivilege	1096	vssvc.exe
Token: SeAuditPrivilege	1096	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1104	wmic.exe
Token: SeSecurityPrivilege	1104	wmic.exe
Token: SeTakeOwnershipPrivilege	1104	wmic.exe
Token: SeLoadDriverPrivilege	1104	wmic.exe
Token: SeSystemProfilePrivilege	1104	wmic.exe
Token: SeSystemtimePrivilege	1104	wmic.exe
Token: SeProfSingleProcessPrivilege	1104	wmic.exe
Token: SeIncBasePriorityPrivilege	1104	wmic.exe
Token: SeCreatePagefilePrivilege	1104	wmic.exe
Token: SeBackupPrivilege	1104	wmic.exe
Token: SeRestorePrivilege	1104	wmic.exe
Token: SeShutdownPrivilege	1104	wmic.exe
Token: SeDebugPrivilege	1104	wmic.exe
Token: SeSystemEnvironmentPrivilege	1104	wmic.exe
Token: SeRemoteShutdownPrivilege	1104	wmic.exe
Token: SeUndockPrivilege	1104	wmic.exe
Token: SeManageVolumePrivilege	1104	wmic.exe
Token: 33	1104	wmic.exe
Token: 34	1104	wmic.exe
Token: 35	1104	wmic.exe
Token: SeIncreaseQuotaPrivilege	1812	wmic.exe
Token: SeSecurityPrivilege	1812	wmic.exe
Token: SeTakeOwnershipPrivilege	1812	wmic.exe
Token: SeLoadDriverPrivilege	1812	wmic.exe
Token: SeSystemProfilePrivilege	1812	wmic.exe
Token: SeSystemtimePrivilege	1812	wmic.exe
Token: SeProfSingleProcessPrivilege	1812	wmic.exe
Token: SeIncBasePriorityPrivilege	1812	wmic.exe
Token: SeCreatePagefilePrivilege	1812	wmic.exe
Token: SeBackupPrivilege	1812	wmic.exe
Token: SeRestorePrivilege	1812	wmic.exe
Token: SeShutdownPrivilege	1812	wmic.exe
Token: SeDebugPrivilege	1812	wmic.exe
Token: SeSystemEnvironmentPrivilege	1812	wmic.exe
Token: SeRemoteShutdownPrivilege	1812	wmic.exe
Token: SeUndockPrivilege	1812	wmic.exe
Token: SeManageVolumePrivilege	1812	wmic.exe
Token: 33	1812	wmic.exe
Token: 34	1812	wmic.exe
Token: 35	1812	wmic.exe
Token: SeIncreaseQuotaPrivilege	1480	wmic.exe
Token: SeSecurityPrivilege	1480	wmic.exe
Token: SeTakeOwnershipPrivilege	1480	wmic.exe
Token: SeLoadDriverPrivilege	1480	wmic.exe
Token: SeSystemProfilePrivilege	1480	wmic.exe
Token: SeSystemtimePrivilege	1480	wmic.exe
Token: SeProfSingleProcessPrivilege	1480	wmic.exe
Token: SeIncBasePriorityPrivilege	1480	wmic.exe
Token: SeCreatePagefilePrivilege	1480	wmic.exe
Token: SeBackupPrivilege	1480	wmic.exe
Token: SeRestorePrivilege	1480	wmic.exe
Token: SeShutdownPrivilege	1480	wmic.exe
Token: SeDebugPrivilege	1480	wmic.exe
Token: SeSystemEnvironmentPrivilege	1480	wmic.exe
Token: SeRemoteShutdownPrivilege	1480	wmic.exe
Token: SeUndockPrivilege	1480	wmic.exe
Token: SeManageVolumePrivilege	1480	wmic.exe
Token: 33	1480	wmic.exe
Token: 34	1480	wmic.exe
Token: 35	1480	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exetaskeng.exe

description	pid	process	target process
PID 1452 wrote to memory of 1572	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1572	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1572	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1572	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1104	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1104	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1104	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1104	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1012	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1012	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1012	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1012	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1812	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1812	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1812	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1812	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1652	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1652	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1652	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1652	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	vssadmin.exe
PID 1452 wrote to memory of 1480	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1480	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1480	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 1452 wrote to memory of 1480	1452	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe	wmic.exe
PID 520 wrote to memory of 1428	520	taskeng.exe	svhost.exe
PID 520 wrote to memory of 1428	520	taskeng.exe	svhost.exe
PID 520 wrote to memory of 1428	520	taskeng.exe	svhost.exe
PID 520 wrote to memory of 1428	520	taskeng.exe	svhost.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe

C:\Users\Admin\AppData\Local\Temp\fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe
"C:\Users\Admin\AppData\Local\Temp\fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1452

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
2⤵
- Interacts with shadow copies
PID:1572

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic.exe SHADOWCOPY /nointeractive
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1104

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
2⤵
- Interacts with shadow copies
PID:1012

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic.exe SHADOWCOPY /nointeractive
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1812

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
2⤵
- Interacts with shadow copies
PID:1652

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic.exe SHADOWCOPY /nointeractive
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1480

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1096

C:\Windows\system32\taskeng.exe
taskeng.exe {1CD646D0-403D-4070-8DCD-CDB6C24AF0D1} S-1-5-21-999675638-2867687379-27515722-1000:ORXGKKZC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:520

C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
2⤵
- Executes dropped EXE
PID:1428

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

2

T1112

File Deletion

2

T1107

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Admin\AppData\Roaming\svhost.exe
Filesize
669KB

MD5
489e246b8f55137cd70e4b2d718ff85f

SHA1
444e3fd11ac385ab333db41420e5c4fd2e47a5ba

SHA256
fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd

SHA512
25301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7

Download Submit
C:\Users\Admin\AppData\Roaming\svhost.exe
Filesize
669KB

MD5
489e246b8f55137cd70e4b2d718ff85f

SHA1
444e3fd11ac385ab333db41420e5c4fd2e47a5ba

SHA256
fc0f65213e7ad5960378433efc55642c116c750e10cb881ed7297f361b6be7dd

SHA512
25301655af73d40156d5761883198e519887d6dd24c282602a43cba8d029e108a26a29fa9b99e80c559a2916e311a6726dfbe8ef43c75dac503a3d33fa8464f7

Download Submit
memory/1012-57-0x0000000000000000-mapping.dmp

Download
memory/1104-56-0x0000000000000000-mapping.dmp

Download
memory/1428-62-0x0000000000000000-mapping.dmp

Download
memory/1452-54-0x0000000075041000-0x0000000075043000-memory.dmp

Filesize
8KB

Download
memory/1480-60-0x0000000000000000-mapping.dmp

Download
memory/1572-55-0x0000000000000000-mapping.dmp

Download
memory/1652-59-0x0000000000000000-mapping.dmp

Download
memory/1812-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads