5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875

Analysis

max time kernel
175s
max time network
186s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
11/02/2022, 06:52

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General

Target
5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
Size 55KB
Sample220211-hna3qsdfgn
SHA256 5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875
MD5 9d18249b677fbc70d5d7280884ee4aba
SHA1 fce7f8dca532c5a7c442edd6803fdcabaa4218ca
SHA512 d71f8930081e171bb53d7b187a34b4ccf58dc00a0dd1f7d4a438b1a11cb0c362d30eb9fd7ef2ba9317d86348970e79f3552435d8fc38563cf74e9a517641ba8d
MD5 SHA1 SHA512

Score

10^/10

persistence ransomware

Malware Config

Extracted

Path

C:\how_to_back_files.html

Ransom Note

<html> <style type="text/css"> body { background-color: #FFFFFF; } { margin: 0; padding: 0; } h1, h3{ text-align: center; text-transform: uppercase; font-weight: normal; } /*---*/ .tabs1{ width: 800px; display: block; margin: auto; position: relative; } .tabs1 .head{ text-align: center; float: top; text-transform: uppercase; font-weight: normal; display: block; padding: 15px; color: #000000; background: #FFFFFFF; } .tabs1 .identi { margin-left: 15px; line-height: 13px; font-size: 13px; text-align: center; float: top; display: block; padding: 15px; background: #FFFFFF; color: #000000; } /*---*/ .tabs{ width: 800px; display: block; margin: auto; position: relative; } .tabs .tab{ float: left; display: block; } .tabs .tab>input[type="radio"] { position: absolute; top: -9999px; left: -9999px; } .tabs .tab>label { display: block; padding: 6px 21px; font-size: 18x; text-transform: uppercase; cursor: pointer; position: relative; color: #000000; background: #000000; } .tabs .content { z-index: 0;/* or display: none; */ overflow: hidden; width: 800px; /*padding: 25px;*/ position: absolute; top: 32px; left: 0; background: #FFFFFFF; color: #000000; opacity:0; transition: opacity 400ms ease-out; } .tabs .content .text{ width: 700px; padding: 25px; } .tabs>.tab>[id^="tab"]:checked + label { top: 0; background: #303030; color: #000000; } .tabs>.tab>[id^="tab"]:checked ~ [id^="tab-content"] { z-index: 1;/* or display: block; */ opacity: 1; transition: opacity 400ms ease-out; } </style> <head> <meta charset="utf-8"> <title>HOW TO DECRYPT YOUR FILES</title> </head> <body> <div class="tabs1"> <div class="head" ><h3>Your personal ID</h3></div> <div class="identi"> <pre>��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pre> </div> </div>  <div class="tabs">  <div class="tab"> <input type="radio" name="tabs" checked="checked" id="tab1" /> <label for="tab1">English</label> <div id="tab-content1" class="content"> <h1>☠ Your files are encrypted! ☠</h1> <hr/> <br/> <div class="text">  Data recovery requires a decoder.</br> To get the decoder, you must:</br> <p>1. Send us an emaill:<span> [email protected] </span>.</p> In the letter include your personal identifier (written at the beginning of this document) and the external IP address of the device on which the encrypted files are stored.</p> 2. We will send you instructions on how to pay the decryption and after payment, you will receive a decoder. <p>* We can decrypt one file as evidence that we have a decoder. <br/>Send 1 test file (it must be an image or a text file) to the email address: <span> [email protected]<span>. <br/>We will provide you with a decrypted file.<p> 3.Send a copy of the letter to the second email address: <span>[email protected]<span> <br/> <br/> <center>Attention!</center> <br/> <ul> <li>Only we can decrypt your files</li> <li>Do not try to uninstall the program or run antivirus tools</li> <li>Attempts to self-decode the files will lead to the loss of your data</li> <li>If you did not receive a response from us, check the spam or try using a different email address and email us again.</li> </ul>  </div> </div> </div>  </ul>  </div> </div>  </div> </div> </body> </html> ��

Emails

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe"	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
Key created	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe

Drops desktop.ini file(s) 9 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\Pictures\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Libraries\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\AccountPictures\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Downloads\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 45 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892126385972798"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.627619"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4024"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe

C:\Users\Admin\AppData\Local\Temp\5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe
"C:\Users\Admin\AppData\Local\Temp\5e8dd811f63242d2bbc7cfd2c276c5783f68b44c89eb3a71c117854cc0ba7875.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:2912

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:1008

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:3016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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