maze | 71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5

Analysis

max time kernel
176s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
16-02-2022 22:54

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General

Target

71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe
Size

486KB
MD5

a66202a5f7e693196a03ebb371ab5c5f
SHA1

1d55ed4048f1ab5fc485776081526e758297e214
SHA256

71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5
SHA512

946a34003e65eafb866db270d90477bfa0828e230e42b7a998d11bddce21ca72fe31f23add3c714c4dcbb2c6c7e55df7328f662529819d3874e8973e78d4a5cf

Score

10^/10

maze ransomware trojan

Malware Config

Extracted

Path

C:\DECRYPT-FILES.html

Ransom Note

<html> <head> <script> function CopyToClipboard(containerid) { if (document.selection) { var range = document.body.createTextRange(); range.moveToElementText(document.getElementById(containerid)); range.select().createTextRange(); document.execCommand("copy"); } else if (window.getSelection) { var range = document.createRange(); range.selectNode(document.getElementById(containerid)); window.getSelection().addRange(range); document.execCommand("copy"); alert("Base64 copied into the clipboard!") } } </script> <style> html{ margin:0; padding:0; width:100%; height:100%; } body { background: #000080; color: #ececec; font-family: Consolas }; .tooltip { position: relative; display: inline-block; border-bottom: 1px dotted black; } .tooltip .tooltiptext { visibility: hidden; width: 120px; background-color: #555; color: #fff; text-align: center; border-radius: 6px; padding: 5px 0; position: absolute; z-index: 1; bottom: 125%; left: 50%; margin-left: -60px; opacity: 0; transition: opacity 0.3s; } .tooltip .tooltiptext::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: #555 transparent transparent transparent; } .tooltip:hover .tooltiptext { visibility: visible; opacity: 1; } p#base64{ -ms-word-break: break-all; word-break: break-all; -webkit-hyphens: auto; -moz-hyphens: auto; -ms-hyphens: auto; hyphens: auto; } p#base64:hover{ cursor: hand; } </style> </head> <body> <table style="position: absolute;" width="100%"> <tr> <td style="width: 25%;"> <span class="left" style="font-size: 14px; font-weight: bold">CODE: <br>------ <br>00000 00000 <br>00000 00000 <br>00000 00000 <br>00000 00000 <br>00000 00000 <br>00000 00000 <br>00000 00000 <br>00000 00000 </span> </td> <td style="width: 50%;"> <div style="text-align: center; font-size: 20px;"> <p><s>0010 SYSTEM FAILURE 0010</s></p> <p>*********************************************************************************************************************</p> <p>Attention! Your documents, photos, databases, and other important files have been encrypted!</p> <p>*********************************************************************************************************************</p> <br> </div> <div style="text-align: center; font-size: 18px;"> <p>The only way to decrypt your files, is to buy the private key from us.</p> <p>You can decrypt one of your files for free, as a proof that we have the method to decrypt the rest of your data.</p> <p>In order to receive the private key contact us via email: <br> <b>[email protected]</b> </p> <p>Remember to hurry up, as your email address may not be avaliable for very long.<br>Buying the key immediatly will guarantee that 100% of your files will be restored.</p> <p>Below you will see a big base64 blob, you will need to email us and copy this blob to us.<br>you can click on it, and it will be copied into the clipboard.</p> <p>If you have troubles copying it, just send us the file you are currently reading, as an attachment.</p> <br> <p>Base64: </p> </div><div style="text-align: center; font-size: 12px;"><p id="base64" onclick="return CopyToClipboard('base64')" class="tooltip">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<span class="tooltiptext">Click here to copy</span></p></div></td><td style="width: 25%; text-align: right;"><span class="right" style="font-size: 14px; font-weight: bold">IMMINENT SHUTDOWN:<br>------<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00<br>00000 00000 0 00</span></td></tr></table></body></html>

Emails

<b>[email protected]</b>

Signatures

Maze
Ransomware family also known as ChaCha.
trojan ransomware maze
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

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

Processes:

MusNotifyIcon.exe

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 19 IoCs

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	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\DownloadMonthlyInternetBytes = "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\DownloadMonthlyRateBkCnt = "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\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	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\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	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\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	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\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe

pid	Process
3720	71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe
3720	71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe

Suspicious use of AdjustPrivilegeToken 45 IoCs

Processes:

wmic.exevssvc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	804	wmic.exe
Token: SeSecurityPrivilege	804	wmic.exe
Token: SeTakeOwnershipPrivilege	804	wmic.exe
Token: SeLoadDriverPrivilege	804	wmic.exe
Token: SeSystemProfilePrivilege	804	wmic.exe
Token: SeSystemtimePrivilege	804	wmic.exe
Token: SeProfSingleProcessPrivilege	804	wmic.exe
Token: SeIncBasePriorityPrivilege	804	wmic.exe
Token: SeCreatePagefilePrivilege	804	wmic.exe
Token: SeBackupPrivilege	804	wmic.exe
Token: SeRestorePrivilege	804	wmic.exe
Token: SeShutdownPrivilege	804	wmic.exe
Token: SeDebugPrivilege	804	wmic.exe
Token: SeSystemEnvironmentPrivilege	804	wmic.exe
Token: SeRemoteShutdownPrivilege	804	wmic.exe
Token: SeUndockPrivilege	804	wmic.exe
Token: SeManageVolumePrivilege	804	wmic.exe
Token: 33	804	wmic.exe
Token: 34	804	wmic.exe
Token: 35	804	wmic.exe
Token: 36	804	wmic.exe
Token: SeIncreaseQuotaPrivilege	804	wmic.exe
Token: SeSecurityPrivilege	804	wmic.exe
Token: SeTakeOwnershipPrivilege	804	wmic.exe
Token: SeLoadDriverPrivilege	804	wmic.exe
Token: SeSystemProfilePrivilege	804	wmic.exe
Token: SeSystemtimePrivilege	804	wmic.exe
Token: SeProfSingleProcessPrivilege	804	wmic.exe
Token: SeIncBasePriorityPrivilege	804	wmic.exe
Token: SeCreatePagefilePrivilege	804	wmic.exe
Token: SeBackupPrivilege	804	wmic.exe
Token: SeRestorePrivilege	804	wmic.exe
Token: SeShutdownPrivilege	804	wmic.exe
Token: SeDebugPrivilege	804	wmic.exe
Token: SeSystemEnvironmentPrivilege	804	wmic.exe
Token: SeRemoteShutdownPrivilege	804	wmic.exe
Token: SeUndockPrivilege	804	wmic.exe
Token: SeManageVolumePrivilege	804	wmic.exe
Token: 33	804	wmic.exe
Token: 34	804	wmic.exe
Token: 35	804	wmic.exe
Token: 36	804	wmic.exe
Token: SeBackupPrivilege	1924	vssvc.exe
Token: SeRestorePrivilege	1924	vssvc.exe
Token: SeAuditPrivilege	1924	vssvc.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe

description	pid	Process	procid_target
PID 3720 wrote to memory of 804	3720	71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe	64
PID 3720 wrote to memory of 804	3720	71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe	64

C:\Users\Admin\AppData\Local\Temp\71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe
"C:\Users\Admin\AppData\Local\Temp\71b684c0b52bfa1a8b79ee57b99af14a87b977489c08d002b784bdf7584993c5.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Windows\system32\wbem\wmic.exe
  "C:\qv\..\Windows\x\dsnh\..\..\system32\ur\dp\..\..\wbem\aw\stw\..\..\wmic.exe" shadowcopy delete
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:804

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1924

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3264

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Modifies data under HKEY_USERS
PID:3196

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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