maze | a7f2d3bc5c8f9426267b1f48222a6ad42fa45658a6a9b8c0f1f6045d01bd71e1

Analysis

max time kernel
135s
max time network
136s
platform
windows7_x64
resource
win7v20201028
submitted
15-11-2020 17:43

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General

Target

gx.dll
Size

486KB
MD5

ad099246019b10f5d9a64159c53370ac
SHA1

baf152255b473f8da85cea6781935e2102ec868e
SHA256

a7f2d3bc5c8f9426267b1f48222a6ad42fa45658a6a9b8c0f1f6045d01bd71e1
SHA512

7f1afee0f70c6033d4d2bb14edff3105dcede7a3432e247310031acd094009b43e6eb554ad0310f3100aafbec79aed5e7bbfe60441a3f7988cb8f8b65a70ea22

Score

10^/10

maze persistence ransomware spyware trojan

Malware Config

Extracted

Path

C:\DECRYPT-FILES.txt

Family

maze

Ransom Note

Attention! ---------------------------- | What happened? ---------------------------- We hacked your network and now all your files, documents, photos, databases, and other important data are safely encrypted with reliable algorithms. You cannot access the files right now. But do not worry. You can get it back! It is easy to recover in a few steps. We have also downloaded a lot of private data from your network, so in case of not contacting us as soon as possible this data will be released. If you do not contact us in a 3 days we will post information about your breach on our public news website and after 7 days the whole downloaded info. To see what happens to those who don't contact us, google: * Southwire Maze Ransomware * MDLab Maze Ransomware * City of Pensacola Maze Ransomware After the payment the data will be removed from our disks and decryptor will be given to you, so you can restore all your files. ---------------------------- | How to contact us and get my files back? ---------------------------- The only method to restore your files and be safe from data leakage is to purchase a unique for you private key which is securely stored on our servers. To contact us and purchase the key you have to visit our website in a hidden TOR network. There are general 2 ways to reach us: 1) [Recommended] Using hidden TOR network. a) Download a special TOR browser: https://www.torproject.org/ b) Install the TOR Browser. c) Open the TOR Browser. d) Open our website in the TOR browser: http://aoacugmutagkwctu.onion/6b1d0cab166ea71d e) Follow the instructions on this page. 2) If you have any problems connecting or using TOR network a) Open our website: https://mazedecrypt.top/6b1d0cab166ea71d b) Follow the instructions on this page. Warning: the second (2) method can be blocked in some countries. That is why the first (1) method is recommended to use. On this page, you will see instructions on how to make a free decryption test and how to pay. Also it has a live chat with our operators and support team. ---------------------------- | What about guarantees? ---------------------------- We understand your stress and worry. So you have a FREE opportunity to test a service by instantly decrypting for free three files from every system in your network. If you have any problems our friendly support team is always here to assist you in a live chat! P.S. Dear system administrators, do not think you can handle it by yourself. Inform leadership as soon as possible. By hiding the fact of the breach you will be eventually fired and sometimes even sued. ------------------------------------------------------------------------------- THIS IS A SPECIAL BLOCK WITH A PERSONAL AND CONFIDENTIAL INFORMATION! DO NOT TOUCH IT WE NEED IT TO IDENTIFY AND AUTHORIZE YOU ---BEGIN MAZE KEY--- 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 ---END MAZE KEY---

URLs

http://aoacugmutagkwctu.onion/6b1d0cab166ea71d

https://mazedecrypt.top/6b1d0cab166ea71d

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

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\MergeUpdate.tiff	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\MergeUpdate.tiff => C:\Users\Admin\Pictures\MergeUpdate.tiff.OjdyQJ	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\RevokeEnter.crw => C:\Users\Admin\Pictures\RevokeEnter.crw.SPYdgvi	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\UnblockComplete.crw => C:\Users\Admin\Pictures\UnblockComplete.crw.WQAS	regsvr32.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6b1d0cab166ea71d.tmp	regsvr32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\111.bmp"	regsvr32.exe

Drops file in Program Files directory 49 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\SwitchUpdate.easmx	regsvr32.exe
File opened for modification	C:\Program Files\UnblockEnter.snd	regsvr32.exe
File created	C:\Program Files (x86)\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6b1d0cab166ea71d.tmp	regsvr32.exe
File opened for modification	C:\Program Files\MountClose.zip	regsvr32.exe
File opened for modification	C:\Program Files\ResolveExport.crw	regsvr32.exe
File opened for modification	C:\Program Files\StopResolve.dib	regsvr32.exe
File opened for modification	C:\Program Files\PopClose.tif	regsvr32.exe
File opened for modification	C:\Program Files\StartDebug.inf	regsvr32.exe
File opened for modification	C:\Program Files\UseUninstall.emz	regsvr32.exe
File opened for modification	C:\Program Files\EnableNew.xls	regsvr32.exe
File opened for modification	C:\Program Files\GetOptimize.eps	regsvr32.exe
File opened for modification	C:\Program Files\LimitRedo.svg	regsvr32.exe
File opened for modification	C:\Program Files\ShowFormat.mpa	regsvr32.exe
File opened for modification	C:\Program Files\SuspendUndo.txt	regsvr32.exe
File opened for modification	C:\Program Files (x86)\6b1d0cab166ea71d.tmp	regsvr32.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\6b1d0cab166ea71d.tmp	regsvr32.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\BlockConvert.DVR-MS	regsvr32.exe
File opened for modification	C:\Program Files\ExpandResume.midi	regsvr32.exe
File opened for modification	C:\Program Files\RepairRestart.pdf	regsvr32.exe
File opened for modification	C:\Program Files\ShowDisconnect.doc	regsvr32.exe
File opened for modification	C:\Program Files\StopOut.xltx	regsvr32.exe
File opened for modification	C:\Program Files\HideResolve.aif	regsvr32.exe
File created	C:\Program Files\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\6b1d0cab166ea71d.tmp	regsvr32.exe
File opened for modification	C:\Program Files\ClearLock.ogg	regsvr32.exe
File opened for modification	C:\Program Files\ImportRevoke.nfo	regsvr32.exe
File opened for modification	C:\Program Files\SearchStop.edrwx	regsvr32.exe
File opened for modification	C:\Program Files\WatchRename.odp	regsvr32.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\CopyExport.wma	regsvr32.exe
File opened for modification	C:\Program Files\DenyExport.svg	regsvr32.exe
File opened for modification	C:\Program Files\DenySwitch.ods	regsvr32.exe
File opened for modification	C:\Program Files\GrantOpen.cr2	regsvr32.exe
File opened for modification	C:\Program Files\OptimizeWrite.rm	regsvr32.exe
File opened for modification	C:\Program Files\RestartSync.xlsb	regsvr32.exe
File opened for modification	C:\Program Files\RevokeRename.scf	regsvr32.exe
File created	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\DenyPush.ico	regsvr32.exe
File opened for modification	C:\Program Files\EditEnable.txt	regsvr32.exe
File opened for modification	C:\Program Files\GetRevoke.aiff	regsvr32.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6b1d0cab166ea71d.tmp	regsvr32.exe
File opened for modification	C:\Program Files\FormatWait.aiff	regsvr32.exe
File opened for modification	C:\Program Files\SearchDeny.wma	regsvr32.exe
File opened for modification	C:\Program Files\WaitUse.ps1	regsvr32.exe
File opened for modification	C:\Program Files\ClearDebug.ttc	regsvr32.exe
File opened for modification	C:\Program Files\ConvertFromLock.svg	regsvr32.exe
File opened for modification	C:\Program Files\FindNew.wmv	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1288	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeBackupPrivilege	1084	vssvc.exe
Token: SeRestorePrivilege	1084	vssvc.exe
Token: SeAuditPrivilege	1084	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1520	wmic.exe
Token: SeSecurityPrivilege	1520	wmic.exe
Token: SeTakeOwnershipPrivilege	1520	wmic.exe
Token: SeLoadDriverPrivilege	1520	wmic.exe
Token: SeSystemProfilePrivilege	1520	wmic.exe
Token: SeSystemtimePrivilege	1520	wmic.exe
Token: SeProfSingleProcessPrivilege	1520	wmic.exe
Token: SeIncBasePriorityPrivilege	1520	wmic.exe
Token: SeCreatePagefilePrivilege	1520	wmic.exe
Token: SeBackupPrivilege	1520	wmic.exe
Token: SeRestorePrivilege	1520	wmic.exe
Token: SeShutdownPrivilege	1520	wmic.exe
Token: SeDebugPrivilege	1520	wmic.exe
Token: SeSystemEnvironmentPrivilege	1520	wmic.exe
Token: SeRemoteShutdownPrivilege	1520	wmic.exe
Token: SeUndockPrivilege	1520	wmic.exe
Token: SeManageVolumePrivilege	1520	wmic.exe
Token: 33	1520	wmic.exe
Token: 34	1520	wmic.exe
Token: 35	1520	wmic.exe
Token: SeIncreaseQuotaPrivilege	1520	wmic.exe
Token: SeSecurityPrivilege	1520	wmic.exe
Token: SeTakeOwnershipPrivilege	1520	wmic.exe
Token: SeLoadDriverPrivilege	1520	wmic.exe
Token: SeSystemProfilePrivilege	1520	wmic.exe
Token: SeSystemtimePrivilege	1520	wmic.exe
Token: SeProfSingleProcessPrivilege	1520	wmic.exe
Token: SeIncBasePriorityPrivilege	1520	wmic.exe
Token: SeCreatePagefilePrivilege	1520	wmic.exe
Token: SeBackupPrivilege	1520	wmic.exe
Token: SeRestorePrivilege	1520	wmic.exe
Token: SeShutdownPrivilege	1520	wmic.exe
Token: SeDebugPrivilege	1520	wmic.exe
Token: SeSystemEnvironmentPrivilege	1520	wmic.exe
Token: SeRemoteShutdownPrivilege	1520	wmic.exe
Token: SeUndockPrivilege	1520	wmic.exe
Token: SeManageVolumePrivilege	1520	wmic.exe
Token: 33	1520	wmic.exe
Token: 34	1520	wmic.exe
Token: 35	1520	wmic.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1904 wrote to memory of 1288	1904	regsvr32.exe	25
PID 1288 wrote to memory of 1520	1288	regsvr32.exe	34
PID 1288 wrote to memory of 1520	1288	regsvr32.exe	34
PID 1288 wrote to memory of 1520	1288	regsvr32.exe	34
PID 1288 wrote to memory of 1520	1288	regsvr32.exe	34

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\gx.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\gx.dll
  2⤵
  - Modifies extensions of user files
  - Drops startup file
  - Sets desktop wallpaper using registry
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\system32\wbem\wmic.exe
    "C:\spa\w\wq\..\..\..\Windows\xw\jnrp\ob\..\..\..\system32\lrx\yv\..\..\wbem\ednn\xu\f\..\..\..\wmic.exe" shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1520

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1084

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
1⤵
PID:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/1288-1-0x0000000001E40000-0x0000000001E9D000-memory.dmp

Filesize
372KB

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memory/1288-3-0x0000000001E40000-0x0000000001E9D000-memory.dmp

Filesize
372KB

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