medusalocker | f6e687b576ad52361379864e8065da6fb698df4ec6e0a1f664670229717eb230

General

Target

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
Size

669KB
MD5

ed858a19f5881d5b4c1d291fc3c50bde
SHA1

2becf1d3b743ecf638568065aeb631653f69d003
SHA256

f6e687b576ad52361379864e8065da6fb698df4ec6e0a1f664670229717eb230
SHA512

7c6c83e63ff207b4957b58f076304724007b0b886388f07142264f516dfcda1d12f73ec8e71bba0cce6ed6d2a31d055c61f5df4bb95442bef88e9c16f1c57906
SSDEEP

12288:dQA0FfTcwpBuV2UxqDmuiLZeUaoFi2XZWfGe615HhAZV8DOKD/KeX:Tuf4wTuV2Ux3uIZeUBi2Te6HWnKrKe

Score

10^/10

medusalocker discovery evasion ransomware spyware stealer trojan

Malware Config

Extracted

Path

\Device\HarddiskVolume1\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;">766431AB2F254C3879558D67D371D656085AD41513F4FF6CBB4818D773F95ECE77B075F5F48A966F126EAFDAF46BF6552B916099F6137A66F458CB972A0007A2<br>8842F41ADF16472B66A0C08F808FF95F10067CF125C577392C4570E5159E6EB4BDC2FA95733070DF7F581545939D4CA51F3340D35AD2D3B78746D5B5107E<br>60D5AA9A7F1A3953EDBBDC7FFD2F82C0B0546507D3380966E55C16BFB60D908A3DB5E9AAB9C7D37509F639146A017EEC0DD40820D452F1E67629F9707B85<br>29E357AE32AA35C532F928C14778916A78E67929987FF749682C39726A3E97D3BF0B0D2B639A691D8027C74869931C9631AB69CAEE48876230C82E40504F<br>E4E403D0C92849F199D6E5E0BA250D196B12DEA085693BECD419443D46E179B78C1ABDE116A09B2CF14FD5ECEC9C203DF03A43C624ED213AAD18099A9F54<br>6747D3F6D0E6354ADF5BDB98E716E7EBBCF9D07A7295AD7C06AAB73FF522CD3F2DC21222A473F3E12C0A0B76AF6EC8CD10CC498E2EA0D292D4FEB357E338<br>A9BF0C8251424D01B62E5B493BF8AE5566A997EF4D09280FB27033E4CBE4567063571FFBB94B9277F207156938446540BED8F69D338A4E3B3DCECB77459C<br>F5E6BBDB97966DC6AC140AE22ECA2F7BFAD253A010D749BEAE8622FC424FDF89555A2B7E65234F8C79B718E2BA34B6E4D0C324FB60EA96C5A289E80CFF69<br>1051DAA6F6E9DE16D011E1D72A05</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> <hr> <b>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> <p>* <a href<a href<b> </div> </div> </div>  <b> <b> <b> <span style="font-size: 22px"></span> </b><br><br> </b><br>  </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 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:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

Renames multiple (211) 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

5044 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
5044	svhost.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.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:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	ioc	process
File opened (read-only)	\??\Q:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\T:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\U:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\J:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\L:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\N:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\O:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\Y:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\A:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\I:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\K:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\P:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\R:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\V:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\X:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\B:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\G:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\M:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\W:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\Z:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\F:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\E:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\H:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
File opened (read-only)	\??\S:	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

wmic.exesvhost.exe20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exewmic.exewmic.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmic.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

pid	process
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

wmic.exewmic.exewmic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	468	wmic.exe
Token: SeSecurityPrivilege	468	wmic.exe
Token: SeTakeOwnershipPrivilege	468	wmic.exe
Token: SeLoadDriverPrivilege	468	wmic.exe
Token: SeSystemProfilePrivilege	468	wmic.exe
Token: SeSystemtimePrivilege	468	wmic.exe
Token: SeProfSingleProcessPrivilege	468	wmic.exe
Token: SeIncBasePriorityPrivilege	468	wmic.exe
Token: SeCreatePagefilePrivilege	468	wmic.exe
Token: SeBackupPrivilege	468	wmic.exe
Token: SeRestorePrivilege	468	wmic.exe
Token: SeShutdownPrivilege	468	wmic.exe
Token: SeDebugPrivilege	468	wmic.exe
Token: SeSystemEnvironmentPrivilege	468	wmic.exe
Token: SeRemoteShutdownPrivilege	468	wmic.exe
Token: SeUndockPrivilege	468	wmic.exe
Token: SeManageVolumePrivilege	468	wmic.exe
Token: 33	468	wmic.exe
Token: 34	468	wmic.exe
Token: 35	468	wmic.exe
Token: 36	468	wmic.exe
Token: SeIncreaseQuotaPrivilege	4884	wmic.exe
Token: SeSecurityPrivilege	4884	wmic.exe
Token: SeTakeOwnershipPrivilege	4884	wmic.exe
Token: SeLoadDriverPrivilege	4884	wmic.exe
Token: SeSystemProfilePrivilege	4884	wmic.exe
Token: SeSystemtimePrivilege	4884	wmic.exe
Token: SeProfSingleProcessPrivilege	4884	wmic.exe
Token: SeIncBasePriorityPrivilege	4884	wmic.exe
Token: SeCreatePagefilePrivilege	4884	wmic.exe
Token: SeBackupPrivilege	4884	wmic.exe
Token: SeRestorePrivilege	4884	wmic.exe
Token: SeShutdownPrivilege	4884	wmic.exe
Token: SeDebugPrivilege	4884	wmic.exe
Token: SeSystemEnvironmentPrivilege	4884	wmic.exe
Token: SeRemoteShutdownPrivilege	4884	wmic.exe
Token: SeUndockPrivilege	4884	wmic.exe
Token: SeManageVolumePrivilege	4884	wmic.exe
Token: 33	4884	wmic.exe
Token: 34	4884	wmic.exe
Token: 35	4884	wmic.exe
Token: 36	4884	wmic.exe
Token: SeIncreaseQuotaPrivilege	4860	wmic.exe
Token: SeSecurityPrivilege	4860	wmic.exe
Token: SeTakeOwnershipPrivilege	4860	wmic.exe
Token: SeLoadDriverPrivilege	4860	wmic.exe
Token: SeSystemProfilePrivilege	4860	wmic.exe
Token: SeSystemtimePrivilege	4860	wmic.exe
Token: SeProfSingleProcessPrivilege	4860	wmic.exe
Token: SeIncBasePriorityPrivilege	4860	wmic.exe
Token: SeCreatePagefilePrivilege	4860	wmic.exe
Token: SeBackupPrivilege	4860	wmic.exe
Token: SeRestorePrivilege	4860	wmic.exe
Token: SeShutdownPrivilege	4860	wmic.exe
Token: SeDebugPrivilege	4860	wmic.exe
Token: SeSystemEnvironmentPrivilege	4860	wmic.exe
Token: SeRemoteShutdownPrivilege	4860	wmic.exe
Token: SeUndockPrivilege	4860	wmic.exe
Token: SeManageVolumePrivilege	4860	wmic.exe
Token: 33	4860	wmic.exe
Token: 34	4860	wmic.exe
Token: 35	4860	wmic.exe
Token: 36	4860	wmic.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	pid	process	target process
PID 820 wrote to memory of 468	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 468	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 468	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4884	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4884	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4884	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4860	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4860	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe
PID 820 wrote to memory of 4860	820	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe	wmic.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe

C:\Users\Admin\AppData\Local\Temp\20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240920ed858a19f5881d5b4c1d291fc3c50bdecobaltstrikemedusalocker.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops desktop.ini file(s)
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:820
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:468
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4884
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4860

C:\Users\Admin\AppData\Roaming\svhost.exe
C:\Users\Admin\AppData\Roaming\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5044

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

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
669KB

MD5
ed858a19f5881d5b4c1d291fc3c50bde

SHA1
2becf1d3b743ecf638568065aeb631653f69d003

SHA256
f6e687b576ad52361379864e8065da6fb698df4ec6e0a1f664670229717eb230

SHA512
7c6c83e63ff207b4957b58f076304724007b0b886388f07142264f516dfcda1d12f73ec8e71bba0cce6ed6d2a31d055c61f5df4bb95442bef88e9c16f1c57906

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

Filesize
536B

MD5
cab5343467783d997e7114af0bec5363

SHA1
ce6e6c0379a51353619c2a658d0757b8c223a955

SHA256
d7e70bda83976a8af72b187df7f7c9b0d35b627088261e27ed5486a809fa41f2

SHA512
51a4e8661b09ea9c51e164c30be7d567efacd123b43342b321a68167019d422a66d178fccd633fdc4d06b4216518c570c1da066e3c8f8156d0873cf4a2f51b83

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\Device\HarddiskVolume1\HOW_TO_BACK_FILES.html

Filesize
4KB

MD5
18c4599115899817f9c516d4f97fafde

SHA1
59234f33a248733df62149a39b009428c078d35f

SHA256
ecc35baae0b7f8ad74dbbb1c6780932cc78e1dd24ba0ab2e9ea3fc062df87a4d

SHA512
bf05439767337210f3cd81d74386b72e06a122b9eb8634ee2936e3dc0185eae503995a8a0a0a03c28f77f018aca736928ac8edced5c2bfcbf4618bd9b23794a8

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads