medusalocker | e566ee2189f830504af1cb787279111b7b2f3817a61a85bad8d9810701dd4877

Analysis

max time kernel
1800s
max time network
1445s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
16-07-2024 08:54

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General

Target

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
Size

678KB
MD5

168447d837fc71deeee9f6c15e22d4f4
SHA1

80ad29680cb8cecf58d870ee675b155fc616097f
SHA256

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b
SHA512

f8e123b601b5df3e89109fcc2e215e014b0d99b382d7cfb1a8cfd55790525c4e5504ee668ac30108c1bebf32e312e0c33edb5737c7ae166b59f791269bd66112
SSDEEP

12288:cPJ4U1TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuDJVoM7:J6TYVQ2qZ7aSgLwuVfstRJLIYM

Score

10^/10

medusalocker defense_evasion evasion execution impact ransomware spyware stealer trojan

Malware Config

Extracted

Path

\Device\HarddiskVolume1\Boot\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;">EC5E044C3D968BBADBA2A18CF7F0EEF0B29127A403C6A19F5A9482F9EEEB5FDA487CB83A333B4E776E8E829E445E99734B5DCB54CC74E6E0A309C28B60CAE4B1<br>F1A78E012A362E4F25E13F898634F21833E205059AA687F12D512D4F591A07382DF1D59016DC9BDA3841654AAC85B41093E4EFA18FE309780FB29387E516<br>B89164DCF34312984FEFAB01DF6AA7909C92E436A8801D2E0E45A6200FE0E45D3033C046B6CEEE06581340798E49E9900CFEAA7B9BD522D43D1C8F91A469<br>2B4834D7D8BF0632B3C4F15ABB3649444BCAA4EB689FC8ACCFFF4EA2CBE783CD2BF9C99F974612273BC50C4AB1608146AF7CAD98A31AE46567599424840E<br>4FB3A11F210F0F877688BBD9DE4960F923CD5AC822C2470D43801FECB5EC5CB4390053E67B08FEA4DFEF6488630AC07DACFBE3ED0C545C8A2E6597BB25EF<br>BC6EBBF67F96274C33DAE92E4AF923E95586C76738712B22F2E3AC397D11B42AB411AB63FC1086E77AC8032CCA63A7BB1416EA3885F82E7197D28DACB736<br>CCEF14256B778BA5D5F70FCA3E53D98DBABA760CAACD06857816C1A1FAAAA05BCBA50B8319AA0FCADEBBDCF9EE8755F20F5F8E7779ED9BAE27737DAC1505<br>D3D77229A1F9213DE36672650FE9C5E7A8E73C746D19FAA29F82641D0550019D1D88E7D7972EFD5AF55F5D4CB0554DC0F63176D1D70BFDFE3463D42CF95E<br>8D7124109F61C7ACD58216B32C01</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></a><br> <br><br> <br> </a> <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> http://gvlay6u4g53rxdi5.onion/4-Ou6Lexab8jffZWVlLWqoNJwExq9kefkK-ldtD8iaDjRAkN31SIhqP55i3r1y05K9q

Emails

href="[email protected]

">[email protected]

href="[email protected]

">[email protected]

URLs

http://gvlay6u4g53rxdi5.onion/4-Ou6Lexab8jffZWVlLWqoNJwExq9kefkK-ldtD8iaDjRAkN31SIhqP55i3r1y05K9q

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:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (215) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Executes dropped EXE 2 IoCs

Processes:

svhost.exesvhost.exe

pid process

1316 svhost.exe
820 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
1316	svhost.exe
820	svhost.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\desktop.ini	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.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:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

description	ioc	process
File opened (read-only)	\??\B:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\P:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\T:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\E:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\G:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\K:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\U:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\A:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\I:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\J:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\M:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\O:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\Q:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\R:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\S:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\W:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\F:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\H:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\L:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\N:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\V:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\X:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\Y:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
File opened (read-only)	\??\Z:	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

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

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

File Deletion
T1070.004

Inhibit System Recovery
T1490

Direct Volume Access
T1006

Processes:

vssadmin.exevssadmin.exevssadmin.exe

pid process

2844 vssadmin.exe
1668 vssadmin.exe
2788 vssadmin.exe

pid	process
2844	vssadmin.exe
1668	vssadmin.exe
2788	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

pid	process
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

vssvc.exewmic.exewmic.exewmic.exe

description	pid	process
Token: SeBackupPrivilege	1912	vssvc.exe
Token: SeRestorePrivilege	1912	vssvc.exe
Token: SeAuditPrivilege	1912	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2904	wmic.exe
Token: SeSecurityPrivilege	2904	wmic.exe
Token: SeTakeOwnershipPrivilege	2904	wmic.exe
Token: SeLoadDriverPrivilege	2904	wmic.exe
Token: SeSystemProfilePrivilege	2904	wmic.exe
Token: SeSystemtimePrivilege	2904	wmic.exe
Token: SeProfSingleProcessPrivilege	2904	wmic.exe
Token: SeIncBasePriorityPrivilege	2904	wmic.exe
Token: SeCreatePagefilePrivilege	2904	wmic.exe
Token: SeBackupPrivilege	2904	wmic.exe
Token: SeRestorePrivilege	2904	wmic.exe
Token: SeShutdownPrivilege	2904	wmic.exe
Token: SeDebugPrivilege	2904	wmic.exe
Token: SeSystemEnvironmentPrivilege	2904	wmic.exe
Token: SeRemoteShutdownPrivilege	2904	wmic.exe
Token: SeUndockPrivilege	2904	wmic.exe
Token: SeManageVolumePrivilege	2904	wmic.exe
Token: 33	2904	wmic.exe
Token: 34	2904	wmic.exe
Token: 35	2904	wmic.exe
Token: SeIncreaseQuotaPrivilege	764	wmic.exe
Token: SeSecurityPrivilege	764	wmic.exe
Token: SeTakeOwnershipPrivilege	764	wmic.exe
Token: SeLoadDriverPrivilege	764	wmic.exe
Token: SeSystemProfilePrivilege	764	wmic.exe
Token: SeSystemtimePrivilege	764	wmic.exe
Token: SeProfSingleProcessPrivilege	764	wmic.exe
Token: SeIncBasePriorityPrivilege	764	wmic.exe
Token: SeCreatePagefilePrivilege	764	wmic.exe
Token: SeBackupPrivilege	764	wmic.exe
Token: SeRestorePrivilege	764	wmic.exe
Token: SeShutdownPrivilege	764	wmic.exe
Token: SeDebugPrivilege	764	wmic.exe
Token: SeSystemEnvironmentPrivilege	764	wmic.exe
Token: SeRemoteShutdownPrivilege	764	wmic.exe
Token: SeUndockPrivilege	764	wmic.exe
Token: SeManageVolumePrivilege	764	wmic.exe
Token: 33	764	wmic.exe
Token: 34	764	wmic.exe
Token: 35	764	wmic.exe
Token: SeIncreaseQuotaPrivilege	2852	wmic.exe
Token: SeSecurityPrivilege	2852	wmic.exe
Token: SeTakeOwnershipPrivilege	2852	wmic.exe
Token: SeLoadDriverPrivilege	2852	wmic.exe
Token: SeSystemProfilePrivilege	2852	wmic.exe
Token: SeSystemtimePrivilege	2852	wmic.exe
Token: SeProfSingleProcessPrivilege	2852	wmic.exe
Token: SeIncBasePriorityPrivilege	2852	wmic.exe
Token: SeCreatePagefilePrivilege	2852	wmic.exe
Token: SeBackupPrivilege	2852	wmic.exe
Token: SeRestorePrivilege	2852	wmic.exe
Token: SeShutdownPrivilege	2852	wmic.exe
Token: SeDebugPrivilege	2852	wmic.exe
Token: SeSystemEnvironmentPrivilege	2852	wmic.exe
Token: SeRemoteShutdownPrivilege	2852	wmic.exe
Token: SeUndockPrivilege	2852	wmic.exe
Token: SeManageVolumePrivilege	2852	wmic.exe
Token: 33	2852	wmic.exe
Token: 34	2852	wmic.exe
Token: 35	2852	wmic.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exetaskeng.exetaskeng.exe

description	pid	process	target process
PID 1200 wrote to memory of 1668	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 1668	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 1668	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 1668	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2904	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2904	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2904	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2904	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2788	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2788	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2788	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2788	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 764	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 764	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 764	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 764	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2844	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2844	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2844	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2844	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	vssadmin.exe
PID 1200 wrote to memory of 2852	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2852	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2852	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 1200 wrote to memory of 2852	1200	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe	wmic.exe
PID 2064 wrote to memory of 1316	2064	taskeng.exe	svhost.exe
PID 2064 wrote to memory of 1316	2064	taskeng.exe	svhost.exe
PID 2064 wrote to memory of 1316	2064	taskeng.exe	svhost.exe
PID 2064 wrote to memory of 1316	2064	taskeng.exe	svhost.exe
PID 2992 wrote to memory of 820	2992	taskeng.exe	svhost.exe
PID 2992 wrote to memory of 820	2992	taskeng.exe	svhost.exe
PID 2992 wrote to memory of 820	2992	taskeng.exe	svhost.exe
PID 2992 wrote to memory of 820	2992	taskeng.exe	svhost.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.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\add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.exe
"C:\Users\Admin\AppData\Local\Temp\add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b.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:1200
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:1668
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2904
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2788
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:764
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2844
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2852

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1912

C:\Windows\system32\taskeng.exe
taskeng.exe {A836D282-0D6C-4915-B61C-6F1DBDB40748} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Roaming\svhost.exe
  C:\Users\Admin\AppData\Roaming\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:1316

C:\Windows\system32\taskeng.exe
taskeng.exe {D92841F7-351B-4267-B749-DCE1034DE37C} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Users\Admin\AppData\Roaming\svhost.exe
  C:\Users\Admin\AppData\Roaming\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Direct Volume Access

T1006

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
678KB

MD5
168447d837fc71deeee9f6c15e22d4f4

SHA1
80ad29680cb8cecf58d870ee675b155fc616097f

SHA256
add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b

SHA512
f8e123b601b5df3e89109fcc2e215e014b0d99b382d7cfb1a8cfd55790525c4e5504ee668ac30108c1bebf32e312e0c33edb5737c7ae166b59f791269bd66112

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C:\Users\Admin\Documents\MeasureMerge.xlsx

Filesize
16KB

MD5
9149704ce19b62a9dac2daf0ec7e0cd0

SHA1
55057155239ace6f6b38cbfb25f51dabdba2ee2f

SHA256
0faf31813df0da66fcdfbf3daec527c875087eb6f24984dd93f85d5b964542ca

SHA512
587999e6c577a9eb0d4d720114ef979d533d3c79e017b720f100ea9b5e41527189fb08c5826fd272ab3fc5c2bfd784462a5faf11cd53734634e9dcdea21f4cf2

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

Filesize
536B

MD5
db1ff786a0d84c92d2e2dc65bd17164b

SHA1
744831e26a27474df085a2ce5af3813009ac5720

SHA256
cab2d80c34530b2a84af08e02fa3f404460c9533ba9589439f32a5194975c985

SHA512
f2fd15887a6c5f2fc92a13aa68bbf7c30d379903649a89f4335196d4e73df338fff5ef66172f4258cfebe9965fd57e5fc843dff1196385761ee8ab93540e348e

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

Filesize
4KB

MD5
7baec8629c76d5121f134aa237bed9e1

SHA1
27dc88997451fdf753edcf3a17a9db07058ebb2a

SHA256
ebdf1646eef81f674d09b84c173afb78bb76435a6062fc3938519ef89c709852

SHA512
f83bb2eb478cb8fddf5b9eb099fa64eaae5d009dfa13b247a36d67b66a5700b40d915db6e2f3f1ab26ac8cefaa7a1e4122f2c3afdf973ab7439934dcfcfe792a

Download Submit