medusalocker | ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea

General

Target

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
Size

666KB
MD5

8645a413332f840e925bac3cf19ceb57
SHA1

87ca0cd2e1c04c2437d302f2864d1e68ea991677
SHA256

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea
SHA512

ac23c7f28deb3700847bcbf3305e1d6ef133d8ecb45010092024d696ba3839ea53aeee87077f3efc88f9d933673a7147edb862c2ac5636f9f63c3809a557625e
SSDEEP

12288:ZYW1LNT35lDbK/LIVaN8+T7vwqyqhYMhWt918vulAFC9+m:dd35lDbKDIwWUDyqS5omMC9+

Score

10^/10

medusalocker evasion ransomware spyware stealer trojan

Malware Config

Extracted

Path

\Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html

Ransom Note

<!DOCTYPE html> <html lang="en"> <head> <meta charset='utf-8'> <meta name='viewport' content='width=device-width,initial-scale=1'> <title></title> <style> html, body { background-color: #1a1a1a; } body { padding-top: 1rem !important; font-size: 1.3rem; color: white; } #text h2 { font-size: 2rem; font-weight: 600; line-height: 1.125; } .container { max-width: 1152px; flex-grow: 1; margin: 0 auto; position: relative; width: auto; } .box { background-color: #242424; display: block; padding: 1.25rem; border: 1px solid #303030; } a { color: #00b4d8; text-decoration: none; } a:hover { text-decoration: underline; } li { margin-bottom: 10px; } </style> </head> <body> <div class='container'> <div class='box'> <div id='text'> <h2>If you get this message, your network was hacked!</h2> <p>After we gained full access to your servers, we first downloaded a large amount of sensitive data and then encrypted all the data stored on them.</p> <p>That includes personal information on your clients, partners, your personnel, accounting documents, and other crucial files that are necessary for your company to work normally.</p> <p>We used modern complicated algorithms, so you or any recovery service will not be able to decrypt files without our help, wasting time on these attempts instead of negotiations can be fatal for your company.</p> <p>Make sure to act within <span style='color:#f4a261;'>72</span> hours or the negotiations will be considered failed!</p> <p>Inform your superior management about what's going on.</p> <p> Contact us for pricing and decryption software.</p> <p> Contact us by email:<p> <h2>[email protected]</h2> </p>If you do not receive a response within 24 hours, please contact us at our additional contacts:</p> <p> 1) Download for TOX CHAT https://tox.chat/download.html</p> <p> 2) Open chat<p> <p>Add ID Chat: </p><h2>3C9D49B928FDC3C15F0314217623A71B865909B308576B4B0D10AEA62C98677B4A3F160D5C93</h2> <p>If we did not answer you, leave the chat enabled, the operator will contact you!<p> </p>To verify the possibility of the recovery of your files we can decrypted 1-3 file for free.</p> </p>Attach file to the letter (no more than 5Mb).</p> <h2>If you and us succeed the negotiations we will grant you:</h2> <ul> <li>complete confidentiality, we will keep in secret any information regarding to attack, your company will act as if nothing had happened.</li> <li>comprehensive information about vulnerabilities of your network and security report.</li> <li>software and instructions to decrypt all the data that was encrypted.</li> <li>all sensitive downloaded data will be permanently deleted from our cloud storage and we will provide an erasure log.</li> </ul> <h2>Our options if you act like nothing's happening, refuse to make a deal or fail the negotiations:</h2> <ul> <li>inform the media and independent journalists about what happened to your servers. To prove it we'll publish a chunk of private data that you should have ciphered if you care about potential breaches. Moreover, your company will inevitably take decent reputational loss which is hard to assess precisely.</li> <li>inform your clients, employees, partners by phone, e-mail, sms and social networks that you haven't prevent their data leakage. You will violate laws about private data protection.</li> <li>start DDOS attack on you website and infrastructures.</li> <li>personal data stored will be put on sale on the Darknet to find anyone interested to buy useful information regarding your company. It could be data mining agencies or your market competitors.</li> <li>publish all the discovered vulnerabilities found in your network, so anyone will do anything with it.</li> </ul> <h2>Why pay us?</h2> <p>We care about our reputation. You are welcome to google our cases up and be sure that we don't have a single case of failure to provide what we promissed.</p> <p>Turning this issue to a bug bounty will save your private information, reputation and will allow you to use the security report and avoid this kind of situations in future.</p> <h2>Your personal ID</p> Your ID: E482329C842212DFA30A79159E9D6E7613CA3C200D868817376D49228BAA3938AD7806D3629296C243B280368C874CB8006A19E34D7D064576C87E34FCA05398<br>5141442D22D3B004E2362E50222654270D614308EBB0CFAF6FC6A6999145B6C24ADA9CE9BE440C954C6115F44EBBA69A1FE468F743ADA9F8758478785B2E<br>ED6D482F32E62E5133855A812F05C4FF2EE78625E8AA5204383BCD0D0403BE3EBB74A902A27D1B40FA027AB7FBE0C20DEF0F5912DA725BFC8B653FC74D8D<br>F91F848D6A07601B0ABD19BFA878B7BB2B423E7D7EDF2FCB3598F48F94F2231D2F9CCE138FCA78DE115C6BD8B08716CCC93A7E77E35B3DF5C5128AF03B6F<br>0893EC9839792A29D243AEB226B7AA13E39E375BB055735527482BA2D57A09F31AA0C665BC4F5276B0087E2885CFD57BD05FFA88C0FFD76A684F9971312E<br>B00263C8B83B6B63EDB403E54E2ED68485B5E4854D6447FB61A07557B2E8F3A34B07DEDDAC6DFA14C32FBC1208E329220114F228E3F924A078F06F0CC088<br>6662C3B1296D28F45857DD7A1DE8091E2992A8C66AEBE672F7B59CE1AA68D075480C2CEA7D9ECFCF14938028BCB17FDB55AC385AE8618C713A87BE13CC4E<br>9CF141A7FA1124BD00738D04132E9E39E8E2B3E5FE830CBD5E902F5B86EBC65A64E8B2EF2E62BFEF17E515924F0437A62585FDAF7E10E22D3E2217CB5D14<br>CA3867FA3E3C6676A7919F328E6E

Emails

<h2>[email protected]</h2>

URLs

https://tox.chat/download.html</p>

Signatures

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

MedusaLocker payload 2 IoCs

Processes:

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

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.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 (289) 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

3008 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
3008	svhost.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

description	ioc	process
File opened for modification	\??\Z:\$RECYCLE.BIN\S-1-5-21-1014134971-2480516131-292343513-1000\desktop.ini	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.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:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

description	ioc	process
File opened (read-only)	\??\P:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\R:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\B:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\E:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\J:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\K:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\L:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\O:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\V:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\W:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\A:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\S:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\U:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\X:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\Z:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\G:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\H:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\M:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\T:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\Y:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\F:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\I:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\N:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
File opened (read-only)	\??\Q:	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.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

2568 vssadmin.exe
2592 vssadmin.exe
2560 vssadmin.exe

pid	process
2568	vssadmin.exe
2592	vssadmin.exe
2560	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

pid	process
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

Suspicious use of AdjustPrivilegeToken 63 IoCs

Processes:

vssvc.exewmic.exewmic.exewmic.exe

description	pid	process
Token: SeBackupPrivilege	2140	vssvc.exe
Token: SeRestorePrivilege	2140	vssvc.exe
Token: SeAuditPrivilege	2140	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1864	wmic.exe
Token: SeSecurityPrivilege	1864	wmic.exe
Token: SeTakeOwnershipPrivilege	1864	wmic.exe
Token: SeLoadDriverPrivilege	1864	wmic.exe
Token: SeSystemProfilePrivilege	1864	wmic.exe
Token: SeSystemtimePrivilege	1864	wmic.exe
Token: SeProfSingleProcessPrivilege	1864	wmic.exe
Token: SeIncBasePriorityPrivilege	1864	wmic.exe
Token: SeCreatePagefilePrivilege	1864	wmic.exe
Token: SeBackupPrivilege	1864	wmic.exe
Token: SeRestorePrivilege	1864	wmic.exe
Token: SeShutdownPrivilege	1864	wmic.exe
Token: SeDebugPrivilege	1864	wmic.exe
Token: SeSystemEnvironmentPrivilege	1864	wmic.exe
Token: SeRemoteShutdownPrivilege	1864	wmic.exe
Token: SeUndockPrivilege	1864	wmic.exe
Token: SeManageVolumePrivilege	1864	wmic.exe
Token: 33	1864	wmic.exe
Token: 34	1864	wmic.exe
Token: 35	1864	wmic.exe
Token: SeIncreaseQuotaPrivilege	1644	wmic.exe
Token: SeSecurityPrivilege	1644	wmic.exe
Token: SeTakeOwnershipPrivilege	1644	wmic.exe
Token: SeLoadDriverPrivilege	1644	wmic.exe
Token: SeSystemProfilePrivilege	1644	wmic.exe
Token: SeSystemtimePrivilege	1644	wmic.exe
Token: SeProfSingleProcessPrivilege	1644	wmic.exe
Token: SeIncBasePriorityPrivilege	1644	wmic.exe
Token: SeCreatePagefilePrivilege	1644	wmic.exe
Token: SeBackupPrivilege	1644	wmic.exe
Token: SeRestorePrivilege	1644	wmic.exe
Token: SeShutdownPrivilege	1644	wmic.exe
Token: SeDebugPrivilege	1644	wmic.exe
Token: SeSystemEnvironmentPrivilege	1644	wmic.exe
Token: SeRemoteShutdownPrivilege	1644	wmic.exe
Token: SeUndockPrivilege	1644	wmic.exe
Token: SeManageVolumePrivilege	1644	wmic.exe
Token: 33	1644	wmic.exe
Token: 34	1644	wmic.exe
Token: 35	1644	wmic.exe
Token: SeIncreaseQuotaPrivilege	2956	wmic.exe
Token: SeSecurityPrivilege	2956	wmic.exe
Token: SeTakeOwnershipPrivilege	2956	wmic.exe
Token: SeLoadDriverPrivilege	2956	wmic.exe
Token: SeSystemProfilePrivilege	2956	wmic.exe
Token: SeSystemtimePrivilege	2956	wmic.exe
Token: SeProfSingleProcessPrivilege	2956	wmic.exe
Token: SeIncBasePriorityPrivilege	2956	wmic.exe
Token: SeCreatePagefilePrivilege	2956	wmic.exe
Token: SeBackupPrivilege	2956	wmic.exe
Token: SeRestorePrivilege	2956	wmic.exe
Token: SeShutdownPrivilege	2956	wmic.exe
Token: SeDebugPrivilege	2956	wmic.exe
Token: SeSystemEnvironmentPrivilege	2956	wmic.exe
Token: SeRemoteShutdownPrivilege	2956	wmic.exe
Token: SeUndockPrivilege	2956	wmic.exe
Token: SeManageVolumePrivilege	2956	wmic.exe
Token: 33	2956	wmic.exe
Token: 34	2956	wmic.exe
Token: 35	2956	wmic.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exetaskeng.exe

description	pid	process	target process
PID 2440 wrote to memory of 2568	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2568	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2568	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2568	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 1864	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1864	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1864	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1864	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 2592	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2592	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2592	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2592	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 1644	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1644	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1644	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 1644	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 2560	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2560	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2560	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2560	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	vssadmin.exe
PID 2440 wrote to memory of 2956	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 2956	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 2956	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 2440 wrote to memory of 2956	2440	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe	wmic.exe
PID 748 wrote to memory of 3008	748	taskeng.exe	svhost.exe
PID 748 wrote to memory of 3008	748	taskeng.exe	svhost.exe
PID 748 wrote to memory of 3008	748	taskeng.exe	svhost.exe
PID 748 wrote to memory of 3008	748	taskeng.exe	svhost.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe

C:\Users\Admin\AppData\Local\Temp\ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe
"C:\Users\Admin\AppData\Local\Temp\ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea.exe"
1⤵
- UAC bypass
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2440
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2568
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1864
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2592
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1644
- C:\Windows\SysWOW64\vssadmin.exe
  vssadmin.exe Delete Shadows /All /Quiet
  2⤵
  - Interacts with shadow copies
  PID:2560
- C:\Windows\SysWOW64\Wbem\wmic.exe
  wmic.exe SHADOWCOPY /nointeractive
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2956

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2140

C:\Windows\system32\taskeng.exe
taskeng.exe {D8FF32E6-546B-44F2-9639-D72F3F9D42AF} S-1-5-21-1014134971-2480516131-292343513-1000:NYBYVYTJ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:748
- C:\Users\Admin\AppData\Roaming\svhost.exe
  C:\Users\Admin\AppData\Roaming\svhost.exe
  2⤵
  - Executes dropped EXE
  PID:3008

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

2

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

Filesize
666KB

MD5
8645a413332f840e925bac3cf19ceb57

SHA1
87ca0cd2e1c04c2437d302f2864d1e68ea991677

SHA256
ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea

SHA512
ac23c7f28deb3700847bcbf3305e1d6ef133d8ecb45010092024d696ba3839ea53aeee87077f3efc88f9d933673a7147edb862c2ac5636f9f63c3809a557625e

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

Filesize
666KB

MD5
8645a413332f840e925bac3cf19ceb57

SHA1
87ca0cd2e1c04c2437d302f2864d1e68ea991677

SHA256
ac81418b0b932a228d2312e0fb78c8e427e71560a413f702528127c7a59640ea

SHA512
ac23c7f28deb3700847bcbf3305e1d6ef133d8ecb45010092024d696ba3839ea53aeee87077f3efc88f9d933673a7147edb862c2ac5636f9f63c3809a557625e

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

Filesize
536B

MD5
b88b20bf27a89a40235189cfc8dee56e

SHA1
d4f50ee2c88996b7ec0c4712531f5cf43ca9c93e

SHA256
6bf94766f0453c25a0a5c5ce02b45f64ed9e002a077ca9c6b05fb99507ea3978

SHA512
0e05fd663a1b08b19302f5fcf4d1b9edfe38b62ec0a5ad0900b1727693d36131adff4a5811cfad18f5c48c33efb563fca21936796bdaa9a14df3fb94cb0d4a4c

Download Submit
\Device\HarddiskVolume1\Boot\!-Recovery_Instructions-!.html

Filesize
5KB

MD5
45d34685bc1340ad4796bb146e0c5aeb

SHA1
c833b2893e445172342d412ed55f2508cfe981a8

SHA256
1abb4f74839dff99d28fc24c84fd3d6ad4d2d30465b46caa02dd283efbc28a47

SHA512
17b11de6fe7d891c46a90cc95155dc331cdc0310ba93182a9a60d5d7b919dced0600285db90f88e2a1bdf8be2a1c3d3e5a18913dd646920a53937662994151ba

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads