medusalocker | a25c0227728878c386ab6dba139976cb10e853dd3cd1eb3623f236ee8e1df212

General

Target

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
Size

678KB
MD5

ff1b2e9d3e7af50b302b090a15d15c76
SHA1

3bae4caa7c4ecca659aec342472fe49b3c0b2131
SHA256

a25c0227728878c386ab6dba139976cb10e853dd3cd1eb3623f236ee8e1df212
SHA512

d3527aa4e7d4a8fbd0565ea8c0d26dc7e9ff0f294efa5260b9e964e5943782eb697b964cb684ad9008a717b93cfd120ec1337acb0ecbefef0931313f7b88e881
SSDEEP

12288:cPJ4U0TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuvJVoM7:JzTYVQ2qZ7aSgLwuVfstRJLAYM

Score

10^/10

medusalocker evasion ransomware spyware stealer trojan

Malware Config

Extracted

Path

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Recovery_Instructions.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;">005EF006DCC5A47C3921F94CCA1231172DE67582FD47C18E46D7C35B169A27D36C0FFB17C61E3107885F67E927B842992C0080453128267FD2372D830DE80CEF<br>C333B92E3B2BB09BC15DB4AAECC1532091C231FCF0FE95BFC2C2C4EEA967F3C3B1FB3D77C8A063FF1AD50EB16C6797C703260997884996C390482324B356<br>E441124FC6E015D7F4F56DEB6392CA14DBB2749C84D611927D6C31AB2404EE0D5C848DB15D18A505FAEA1E5DBA42C787E01DE05116FAA5341ED263872673<br>05B22DC32C2B8AE0ACEF8C6ABE83A374C6A9406AD78F21526BD6554C77BD5145A18439278BF9F9D03D3C8B587913C545C55F3D99EECA7B6D52DDAAD4E193<br>3D2D8AA64A4A96EC18B865E5BE46074324D23C4A9AC6A70AA3435304E0CFD5472A513EADB9C8A43EC5728E5406C962A0FF67A61159B3855C8E939EDC8526<br>6BE7F126AA28A156F7A52BFD9027C13037CCE3E0AEDB3B6EAC122103B6CBEDD675750790415450AAA16D69946210E60C7768DA9445E2848D9BA7C9B27BDC<br>A502A729A1C1346FAC56409760A77F1C93BD4A13FEA0CDC84132886D16058BA5B6FCDEC10FB398D2692CD42307E8CB54BADF6F61C2ABD904F29138ED4582<br>36190BB20802A59F03B6E2714DAD97739C3527E19DF31B553500FBE1CCEB3796368D6E6406B435ED93FE958D55F1099A09CA84AFDD2969B7E7A9C45DF4AA<br>2E974E00873A84714A826DFB8827</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>http://gvlay6u4g53rxdi5.onion/21-aRlswZwdaPLiH2ghcD7Rh6wuGgFv0BGV-QUSZVAgW25ZvIR08pUnNaDXRI6tIx234</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 "{{URL}}". <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 mail on the site:</b> <a href="https://protonmail.com">protonmail.com<br> <hr> <b>Make contact as soon as possible. Your private key (decryption key) <br> is only stored temporarily.<br><br> 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]</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:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.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 (193) 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

2720 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
2720	svhost.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.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:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

description	ioc	process
File opened (read-only)	\??\O:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\P:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\T:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\W:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\A:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\J:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\K:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\R:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\Y:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\F:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\B:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\G:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\N:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\L:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\Q:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\V:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\X:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\Z:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\E:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\H:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\I:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\M:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\S:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
File opened (read-only)	\??\U:	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.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

2184 vssadmin.exe
2580 vssadmin.exe
2480 vssadmin.exe

pid	process
2184	vssadmin.exe
2580	vssadmin.exe
2480	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

pid	process
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

vssvc.exewmic.exewmic.exewmic.exe

description	pid	process
Token: SeBackupPrivilege	1628	vssvc.exe
Token: SeRestorePrivilege	1628	vssvc.exe
Token: SeAuditPrivilege	1628	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2672	wmic.exe
Token: SeSecurityPrivilege	2672	wmic.exe
Token: SeTakeOwnershipPrivilege	2672	wmic.exe
Token: SeLoadDriverPrivilege	2672	wmic.exe
Token: SeSystemProfilePrivilege	2672	wmic.exe
Token: SeSystemtimePrivilege	2672	wmic.exe
Token: SeProfSingleProcessPrivilege	2672	wmic.exe
Token: SeIncBasePriorityPrivilege	2672	wmic.exe
Token: SeCreatePagefilePrivilege	2672	wmic.exe
Token: SeBackupPrivilege	2672	wmic.exe
Token: SeRestorePrivilege	2672	wmic.exe
Token: SeShutdownPrivilege	2672	wmic.exe
Token: SeDebugPrivilege	2672	wmic.exe
Token: SeSystemEnvironmentPrivilege	2672	wmic.exe
Token: SeRemoteShutdownPrivilege	2672	wmic.exe
Token: SeUndockPrivilege	2672	wmic.exe
Token: SeManageVolumePrivilege	2672	wmic.exe
Token: 33	2672	wmic.exe
Token: 34	2672	wmic.exe
Token: 35	2672	wmic.exe
Token: SeIncreaseQuotaPrivilege	2728	wmic.exe
Token: SeSecurityPrivilege	2728	wmic.exe
Token: SeTakeOwnershipPrivilege	2728	wmic.exe
Token: SeLoadDriverPrivilege	2728	wmic.exe
Token: SeSystemProfilePrivilege	2728	wmic.exe
Token: SeSystemtimePrivilege	2728	wmic.exe
Token: SeProfSingleProcessPrivilege	2728	wmic.exe
Token: SeIncBasePriorityPrivilege	2728	wmic.exe
Token: SeCreatePagefilePrivilege	2728	wmic.exe
Token: SeBackupPrivilege	2728	wmic.exe
Token: SeRestorePrivilege	2728	wmic.exe
Token: SeShutdownPrivilege	2728	wmic.exe
Token: SeDebugPrivilege	2728	wmic.exe
Token: SeSystemEnvironmentPrivilege	2728	wmic.exe
Token: SeRemoteShutdownPrivilege	2728	wmic.exe
Token: SeUndockPrivilege	2728	wmic.exe
Token: SeManageVolumePrivilege	2728	wmic.exe
Token: 33	2728	wmic.exe
Token: 34	2728	wmic.exe
Token: 35	2728	wmic.exe
Token: SeIncreaseQuotaPrivilege	1988	wmic.exe
Token: SeSecurityPrivilege	1988	wmic.exe
Token: SeTakeOwnershipPrivilege	1988	wmic.exe
Token: SeLoadDriverPrivilege	1988	wmic.exe
Token: SeSystemProfilePrivilege	1988	wmic.exe
Token: SeSystemtimePrivilege	1988	wmic.exe
Token: SeProfSingleProcessPrivilege	1988	wmic.exe
Token: SeIncBasePriorityPrivilege	1988	wmic.exe
Token: SeCreatePagefilePrivilege	1988	wmic.exe
Token: SeBackupPrivilege	1988	wmic.exe
Token: SeRestorePrivilege	1988	wmic.exe
Token: SeShutdownPrivilege	1988	wmic.exe
Token: SeDebugPrivilege	1988	wmic.exe
Token: SeSystemEnvironmentPrivilege	1988	wmic.exe
Token: SeRemoteShutdownPrivilege	1988	wmic.exe
Token: SeUndockPrivilege	1988	wmic.exe
Token: SeManageVolumePrivilege	1988	wmic.exe
Token: 33	1988	wmic.exe
Token: 34	1988	wmic.exe
Token: 35	1988	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exetaskeng.exe

description	pid	process	target process
PID 2008 wrote to memory of 2184	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2184	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2184	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2184	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2672	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2672	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2672	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2672	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2580	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2580	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2580	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2580	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2728	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2728	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2728	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2728	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 2480	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2480	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2480	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 2480	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	vssadmin.exe
PID 2008 wrote to memory of 1988	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 1988	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 1988	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2008 wrote to memory of 1988	2008	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe	wmic.exe
PID 2400 wrote to memory of 2720	2400	taskeng.exe	svhost.exe
PID 2400 wrote to memory of 2720	2400	taskeng.exe	svhost.exe
PID 2400 wrote to memory of 2720	2400	taskeng.exe	svhost.exe
PID 2400 wrote to memory of 2720	2400	taskeng.exe	svhost.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.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\ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff1b2e9d3e7af50b302b090a15d15c76_JaffaCakes118.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:2008
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2184
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2580
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2728
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2480
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1988

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1628

C:\Windows\system32\taskeng.exe
taskeng.exe {76E035D6-13CE-48F7-A7D8-551558E1126A} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Roaming\svhost.exe
  C:\Users\Admin\AppData\Roaming\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:2720

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

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Downloads

C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\Recovery_Instructions.html

Filesize
4KB

MD5
feff41707714c52c1c5bdc50112db358

SHA1
5875ea43a5b23e15f5f0e350979833fa7bf1c6ec

SHA256
ee89987085528c90b7946e0fd19f8300c57c14add98bb378922fc2713d7a687c

SHA512
e387e9d1c7a0b476df1f2e3445e55b1269667ef9f7e65b848ca51861e273507aa4209e2edc5723cf10155d44fe0a9a5d7522a0b47155b76a7dfc7980fceae338

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

Filesize
678KB

MD5
ff1b2e9d3e7af50b302b090a15d15c76

SHA1
3bae4caa7c4ecca659aec342472fe49b3c0b2131

SHA256
a25c0227728878c386ab6dba139976cb10e853dd3cd1eb3623f236ee8e1df212

SHA512
d3527aa4e7d4a8fbd0565ea8c0d26dc7e9ff0f294efa5260b9e964e5943782eb697b964cb684ad9008a717b93cfd120ec1337acb0ecbefef0931313f7b88e881

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

Filesize
536B

MD5
2491064d29fbe2ebfa4cbe2a4ac65362

SHA1
4e4c1ec30b6121f8bdc3d952049a275c8b0b2dbc

SHA256
2614accde4359d0567f2a728ba7ba99083cce9c85d0aa171bd11fc3641aaa7e3

SHA512
fe57ea6bcc7602be78f7af5de4f4d809d7f5cc52bc18e7196537048709870e9c47ad9f6493a247a9235126997e29435c54591ca9698e054c19d950f02e68ae61

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads