medusalocker | 461f8a55ea2eecfcc26562326af4b56fbaf8e4957a4a6e0b75bec8ee90ace078

General

Target

6da9c76a6e319c17f1d39e0ae2eaf2af.exe
Size

669KB
MD5

6da9c76a6e319c17f1d39e0ae2eaf2af
SHA1

d8743d22c816de1b1807a64d2bdde6baea838cd0
SHA256

461f8a55ea2eecfcc26562326af4b56fbaf8e4957a4a6e0b75bec8ee90ace078
SHA512

70c3e123f887556ac42bb58d730b59d8d2df1cca4d3e895f79fb6cfa5c1a63a64d46bc6fdc23c711be7b966aaf80d2fb7e83f52bdf4c096cbc946f5a6c976db0
SSDEEP

12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DnKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWmKrKe

Score

10^/10

medusalocker evasion ransomware spyware stealer trojan

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;">28AEBE11114230133E9F7EC888755EC9334B6F2D3E19098BD343C1328BFEA9CE51974303BBBADFF101E7F49DA0B6C16A906E6A3D4DB2186A77719978DFC75485<br>A6B1A2A777175C5C65C3FE9EFE7C6B2879A8732E6389989A62CCB9564CE3DF6212510A3510AFF8CB8092201ACA22CEB9F87990269A899A34ADAE118C0746<br>058A589F0221602CD7D0F9779348E7B7A8976E41165D761E650D52A37386E8FB3F59F6F469B763B993B9DDAA79EE7B8650FF0083FC7F758EF3C59483D54A<br>A466E3F05D699C8FDFD2B8889556DEA3E2C7B724293F7D9B9E80E5B5096AEF357BE8CDFDFDCF124DCE4A7E0BD7239F267CC1C8975D1C3454CC1D34A8C709<br>BB193C18E6AF426BAB68796CDB56B6EA0DD9B54C6AA1F73838E721DC98B5F7A9CBFD932BE6763F16C7DB413428F67112E814AD25DFB4F9B40F9A4BFE5484<br>BAD4C673DBB6AC86159328C4BDAE72AA5107F30E2DBE09B5FAC98648EBEA823162CA5F4856ED18F5B7A20220E489E12437C9AA3FDD6365E5815D977F83E8<br>3EC16FF00CC463309E1C2F4A3466BDD781DAA15E8916C7CBC423FB9D6C84591C2C1CF70D57073F987AAF638C5D94800097869DEF67A4A0F6BDE65EE53E3A<br>40A02C51A373AF6CD9C1F40BD60D97F1DA337F3DEA22CFA2A0642728762B30423F7E0EB81BE1CE469B3F05E9A6B5E14267EAC1A1FC7AAE948B1BF619E844<br>1D513628EFFCAE3F18959DC1FC75</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 </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="[email protected] ">[email protected] </a> <br><a href="[email protected]">[email protected]</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>   </div> </div>  </div> </div> </body> </html>

Emails

href="[email protected]

">[email protected]

href="[email protected]">[email protected]</a>

Signatures

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

MedusaLocker payload 1 IoCs

Processes:

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

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe

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

File Deletion
T1070.004

Inhibit System Recovery
T1490
Renames multiple (317) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid process

3036 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
T1552.001

pid	process
3036	svhost.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-1603059206-2004189698-4139800220-1000\desktop.ini	6da9c76a6e319c17f1d39e0ae2eaf2af.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:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

description	ioc	process
File opened (read-only)	\??\G:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\O:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\S:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\T:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\W:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\Q:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\Y:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\Z:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\A:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\E:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\J:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\M:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\R:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\V:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\U:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\B:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\H:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\I:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\K:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\L:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\N:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\P:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\X:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
File opened (read-only)	\??\F:	6da9c76a6e319c17f1d39e0ae2eaf2af.exe

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

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
T1070.004

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exevssadmin.exe

pid process

2964 vssadmin.exe
2588 vssadmin.exe
2448 vssadmin.exe

pid	process
2964	vssadmin.exe
2588	vssadmin.exe
2448	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

pid	process
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

vssvc.exewmic.exewmic.exewmic.exe

description	pid	process
Token: SeBackupPrivilege	2828	vssvc.exe
Token: SeRestorePrivilege	2828	vssvc.exe
Token: SeAuditPrivilege	2828	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2584	wmic.exe
Token: SeSecurityPrivilege	2584	wmic.exe
Token: SeTakeOwnershipPrivilege	2584	wmic.exe
Token: SeLoadDriverPrivilege	2584	wmic.exe
Token: SeSystemProfilePrivilege	2584	wmic.exe
Token: SeSystemtimePrivilege	2584	wmic.exe
Token: SeProfSingleProcessPrivilege	2584	wmic.exe
Token: SeIncBasePriorityPrivilege	2584	wmic.exe
Token: SeCreatePagefilePrivilege	2584	wmic.exe
Token: SeBackupPrivilege	2584	wmic.exe
Token: SeRestorePrivilege	2584	wmic.exe
Token: SeShutdownPrivilege	2584	wmic.exe
Token: SeDebugPrivilege	2584	wmic.exe
Token: SeSystemEnvironmentPrivilege	2584	wmic.exe
Token: SeRemoteShutdownPrivilege	2584	wmic.exe
Token: SeUndockPrivilege	2584	wmic.exe
Token: SeManageVolumePrivilege	2584	wmic.exe
Token: 33	2584	wmic.exe
Token: 34	2584	wmic.exe
Token: 35	2584	wmic.exe
Token: SeIncreaseQuotaPrivilege	2712	wmic.exe
Token: SeSecurityPrivilege	2712	wmic.exe
Token: SeTakeOwnershipPrivilege	2712	wmic.exe
Token: SeLoadDriverPrivilege	2712	wmic.exe
Token: SeSystemProfilePrivilege	2712	wmic.exe
Token: SeSystemtimePrivilege	2712	wmic.exe
Token: SeProfSingleProcessPrivilege	2712	wmic.exe
Token: SeIncBasePriorityPrivilege	2712	wmic.exe
Token: SeCreatePagefilePrivilege	2712	wmic.exe
Token: SeBackupPrivilege	2712	wmic.exe
Token: SeRestorePrivilege	2712	wmic.exe
Token: SeShutdownPrivilege	2712	wmic.exe
Token: SeDebugPrivilege	2712	wmic.exe
Token: SeSystemEnvironmentPrivilege	2712	wmic.exe
Token: SeRemoteShutdownPrivilege	2712	wmic.exe
Token: SeUndockPrivilege	2712	wmic.exe
Token: SeManageVolumePrivilege	2712	wmic.exe
Token: 33	2712	wmic.exe
Token: 34	2712	wmic.exe
Token: 35	2712	wmic.exe
Token: SeIncreaseQuotaPrivilege	300	wmic.exe
Token: SeSecurityPrivilege	300	wmic.exe
Token: SeTakeOwnershipPrivilege	300	wmic.exe
Token: SeLoadDriverPrivilege	300	wmic.exe
Token: SeSystemProfilePrivilege	300	wmic.exe
Token: SeSystemtimePrivilege	300	wmic.exe
Token: SeProfSingleProcessPrivilege	300	wmic.exe
Token: SeIncBasePriorityPrivilege	300	wmic.exe
Token: SeCreatePagefilePrivilege	300	wmic.exe
Token: SeBackupPrivilege	300	wmic.exe
Token: SeRestorePrivilege	300	wmic.exe
Token: SeShutdownPrivilege	300	wmic.exe
Token: SeDebugPrivilege	300	wmic.exe
Token: SeSystemEnvironmentPrivilege	300	wmic.exe
Token: SeRemoteShutdownPrivilege	300	wmic.exe
Token: SeUndockPrivilege	300	wmic.exe
Token: SeManageVolumePrivilege	300	wmic.exe
Token: 33	300	wmic.exe
Token: 34	300	wmic.exe
Token: 35	300	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exetaskeng.exe

description	pid	process	target process
PID 2512 wrote to memory of 2448	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2448	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2448	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2448	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2584	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2584	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2584	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2584	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2964	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2964	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2964	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2964	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2712	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2712	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2712	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2712	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 2588	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2588	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2588	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 2588	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	vssadmin.exe
PID 2512 wrote to memory of 300	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 300	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 300	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2512 wrote to memory of 300	2512	6da9c76a6e319c17f1d39e0ae2eaf2af.exe	wmic.exe
PID 2448 wrote to memory of 3036	2448	taskeng.exe	svhost.exe
PID 2448 wrote to memory of 3036	2448	taskeng.exe	svhost.exe
PID 2448 wrote to memory of 3036	2448	taskeng.exe	svhost.exe
PID 2448 wrote to memory of 3036	2448	taskeng.exe	svhost.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

6da9c76a6e319c17f1d39e0ae2eaf2af.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	6da9c76a6e319c17f1d39e0ae2eaf2af.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\6da9c76a6e319c17f1d39e0ae2eaf2af.exe
"C:\Users\Admin\AppData\Local\Temp\6da9c76a6e319c17f1d39e0ae2eaf2af.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:2512
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2448
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2584
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2964
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2588
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:300

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2828

C:\Windows\system32\taskeng.exe
taskeng.exe {9558CD91-5235-4072-9669-E226C71EA613} S-1-5-21-1603059206-2004189698-4139800220-1000:AILVMYUM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Users\Admin\AppData\Roaming\svhost.exe
  C:\Users\Admin\AppData\Roaming\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:3036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

1

T1562.001

Indicator Removal

2

T1070

File Deletion

Modify Registry

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
669KB

MD5
6da9c76a6e319c17f1d39e0ae2eaf2af

SHA1
d8743d22c816de1b1807a64d2bdde6baea838cd0

SHA256
461f8a55ea2eecfcc26562326af4b56fbaf8e4957a4a6e0b75bec8ee90ace078

SHA512
70c3e123f887556ac42bb58d730b59d8d2df1cca4d3e895f79fb6cfa5c1a63a64d46bc6fdc23c711be7b966aaf80d2fb7e83f52bdf4c096cbc946f5a6c976db0

Download Submit
C:\Users\Default\NTUSER.DAT.LOG2

Filesize
536B

MD5
fe827c79bcb4efc3ead73ddffbcb4710

SHA1
ff7420a852c36d7ba25ce3df8a0edb9d6e1ca5db

SHA256
91a0742eae42baec3c938d6779645c4384d5c944d6cc3a832b1f8976efcc856e

SHA512
06810ac19cbf1895669bcb4f6c60279ee3310a633737d32a6028bc0e629a73c3dd853b157fe0666ab13b0db03c0c65b6b7eca2c447cf4b7384306364d2e17f8e

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

Filesize
5KB

MD5
c74ca8a7a2efac28c517a8423e24a967

SHA1
00b0124cb4486bf7d62ee1f3820309e0576e389e

SHA256
edf9898d417227fbfc3c2ad3b33fd9ff6c809c0b801423710fa8038c0712e847

SHA512
2f7cba421f759308b88df8ba30fb243a56108332b5df34eb27d6c63bbc66342f0b6c34213c79f9e241eba4cb2e05432ff8df749701f2e7c8b23a2c99be0efb6e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads