maze | ab4c81f552a0dd8911bcbfc6601350139b72c1b5752b70ec699c465b3c54fc7d

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-en-20211014
submitted
08-11-2021 07:01

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General

Target

2b3518937fd231560c7dc4f5af672a033b1c810d7f2f82c8151c025ce75775bf.dll
Size

487KB
MD5

81bc3a2409991325c6e71a06f6b7b881
SHA1

38c88de0ece0451b0665f3616c02c2bad77a92a2
SHA256

2b3518937fd231560c7dc4f5af672a033b1c810d7f2f82c8151c025ce75775bf
SHA512

eb9a1a865367d97cd17e21d13f3a171f005a927cf3c805c6d9cdb5c6cb39c06a1287e60bc2d98910932d27dd184f42738ecd30f1ec99d10646aed6f2cf76de61

Score

10^/10

maze ransomware 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/6c850cca114ae82e 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/6c850cca114ae82e 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/6c850cca114ae82e

https://mazedecrypt.top/6c850cca114ae82e

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 12 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\UndoNew.tif => C:\Users\Admin\Pictures\UndoNew.tif.QVzqYfY	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\CompareImport.raw => C:\Users\Admin\Pictures\CompareImport.raw.KqMF4	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\CopyUndo.crw => C:\Users\Admin\Pictures\CopyUndo.crw.bEU3dI	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\DisableSplit.crw => C:\Users\Admin\Pictures\DisableSplit.crw.bEU3dI	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\ReadWatch.raw => C:\Users\Admin\Pictures\ReadWatch.raw.fzDCsUm	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\RevokeFind.crw => C:\Users\Admin\Pictures\RevokeFind.crw.fzDCsUm	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\SearchMove.png => C:\Users\Admin\Pictures\SearchMove.png.fzDCsUm	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\CheckpointOpen.png => C:\Users\Admin\Pictures\CheckpointOpen.png.KqMF4	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\CheckpointResume.crw => C:\Users\Admin\Pictures\CheckpointResume.crw.KqMF4	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromPing.crw => C:\Users\Admin\Pictures\ConvertFromPing.crw.bEU3dI	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\ConvertFromSet.raw => C:\Users\Admin\Pictures\ConvertFromSet.raw.bEU3dI	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\JoinAdd.raw => C:\Users\Admin\Pictures\JoinAdd.raw.bEU3dI	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\6c850cca114ae82e.tmp	regsvr32.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-1-5-21-2955169046-2371869340-1800780948-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\111.bmp"	regsvr32.exe

Drops file in Program Files directory 45 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\GroupMount.TTS	regsvr32.exe
File opened for modification	C:\Program Files\RequestDisable.potx	regsvr32.exe
File opened for modification	C:\Program Files\UpdateDebug.dotx	regsvr32.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\6c850cca114ae82e.tmp	regsvr32.exe
File opened for modification	C:\Program Files\ExpandUninstall.vssx	regsvr32.exe
File opened for modification	C:\Program Files\ConfirmSearch.rtf	regsvr32.exe
File opened for modification	C:\Program Files\EditInitialize.mov	regsvr32.exe
File opened for modification	C:\Program Files\ResumeTest.mp3	regsvr32.exe
File opened for modification	C:\Program Files\RevokeSkip.snd	regsvr32.exe
File opened for modification	C:\Program Files\BlockGrant.dwfx	regsvr32.exe
File opened for modification	C:\Program Files\DebugPublish.tiff	regsvr32.exe
File opened for modification	C:\Program Files\ImportPublish.ogg	regsvr32.exe
File opened for modification	C:\Program Files\LockSet.cfg	regsvr32.exe
File opened for modification	C:\Program Files\SendMeasure.search-ms	regsvr32.exe
File opened for modification	C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\6c850cca114ae82e.tmp	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\ConvertBlock.xml	regsvr32.exe
File opened for modification	C:\Program Files\ApproveTrace.WTV	regsvr32.exe
File opened for modification	C:\Program Files\OutCompress.mpg	regsvr32.exe
File opened for modification	C:\Program Files\StepSwitch.cab	regsvr32.exe
File opened for modification	C:\Program Files\StepUnprotect.wmf	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 (x86)\Microsoft SQL Server Compact Edition\6c850cca114ae82e.tmp	regsvr32.exe
File created	C:\Program Files\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\AssertCheckpoint.ogg	regsvr32.exe
File opened for modification	C:\Program Files\DenyCompress.M2T	regsvr32.exe
File opened for modification	C:\Program Files\UnprotectUse.hta	regsvr32.exe
File created	C:\Program Files (x86)\DECRYPT-FILES.txt	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\6c850cca114ae82e.tmp	regsvr32.exe
File opened for modification	C:\Program Files\ExitPing.ps1	regsvr32.exe
File opened for modification	C:\Program Files\TestWrite.7z	regsvr32.exe
File opened for modification	C:\Program Files\TracePublish.ps1xml	regsvr32.exe
File opened for modification	C:\Program Files\CompareClear.bmp	regsvr32.exe
File opened for modification	C:\Program Files\ConnectSend.asp	regsvr32.exe
File opened for modification	C:\Program Files\ConvertInstall.mpeg3	regsvr32.exe
File opened for modification	C:\Program Files\EditUse.wpl	regsvr32.exe
File opened for modification	C:\Program Files\FormatEnable.csv	regsvr32.exe
File opened for modification	C:\Program Files\MeasureJoin.dotx	regsvr32.exe
File opened for modification	C:\Program Files\RestoreHide.iso	regsvr32.exe
File opened for modification	C:\Program Files\WriteBackup.ps1	regsvr32.exe
File opened for modification	C:\Program Files\BlockRevoke.wma	regsvr32.exe
File opened for modification	C:\Program Files (x86)\6c850cca114ae82e.tmp	regsvr32.exe
File opened for modification	C:\Program Files\SuspendStop.avi	regsvr32.exe
File opened for modification	C:\Program Files\ReceiveProtect.mp2	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
668	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeBackupPrivilege	1112	vssvc.exe
Token: SeRestorePrivilege	1112	vssvc.exe
Token: SeAuditPrivilege	1112	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1724	wmic.exe
Token: SeSecurityPrivilege	1724	wmic.exe
Token: SeTakeOwnershipPrivilege	1724	wmic.exe
Token: SeLoadDriverPrivilege	1724	wmic.exe
Token: SeSystemProfilePrivilege	1724	wmic.exe
Token: SeSystemtimePrivilege	1724	wmic.exe
Token: SeProfSingleProcessPrivilege	1724	wmic.exe
Token: SeIncBasePriorityPrivilege	1724	wmic.exe
Token: SeCreatePagefilePrivilege	1724	wmic.exe
Token: SeBackupPrivilege	1724	wmic.exe
Token: SeRestorePrivilege	1724	wmic.exe
Token: SeShutdownPrivilege	1724	wmic.exe
Token: SeDebugPrivilege	1724	wmic.exe
Token: SeSystemEnvironmentPrivilege	1724	wmic.exe
Token: SeRemoteShutdownPrivilege	1724	wmic.exe
Token: SeUndockPrivilege	1724	wmic.exe
Token: SeManageVolumePrivilege	1724	wmic.exe
Token: 33	1724	wmic.exe
Token: 34	1724	wmic.exe
Token: 35	1724	wmic.exe
Token: SeIncreaseQuotaPrivilege	1724	wmic.exe
Token: SeSecurityPrivilege	1724	wmic.exe
Token: SeTakeOwnershipPrivilege	1724	wmic.exe
Token: SeLoadDriverPrivilege	1724	wmic.exe
Token: SeSystemProfilePrivilege	1724	wmic.exe
Token: SeSystemtimePrivilege	1724	wmic.exe
Token: SeProfSingleProcessPrivilege	1724	wmic.exe
Token: SeIncBasePriorityPrivilege	1724	wmic.exe
Token: SeCreatePagefilePrivilege	1724	wmic.exe
Token: SeBackupPrivilege	1724	wmic.exe
Token: SeRestorePrivilege	1724	wmic.exe
Token: SeShutdownPrivilege	1724	wmic.exe
Token: SeDebugPrivilege	1724	wmic.exe
Token: SeSystemEnvironmentPrivilege	1724	wmic.exe
Token: SeRemoteShutdownPrivilege	1724	wmic.exe
Token: SeUndockPrivilege	1724	wmic.exe
Token: SeManageVolumePrivilege	1724	wmic.exe
Token: 33	1724	wmic.exe
Token: 34	1724	wmic.exe
Token: 35	1724	wmic.exe
Token: 33	1936	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1936	AUDIODG.EXE
Token: 33	1936	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1936	AUDIODG.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 1088 wrote to memory of 668	1088	regsvr32.exe	28
PID 668 wrote to memory of 1724	668	regsvr32.exe	33
PID 668 wrote to memory of 1724	668	regsvr32.exe	33
PID 668 wrote to memory of 1724	668	regsvr32.exe	33
PID 668 wrote to memory of 1724	668	regsvr32.exe	33

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2b3518937fd231560c7dc4f5af672a033b1c810d7f2f82c8151c025ce75775bf.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2b3518937fd231560c7dc4f5af672a033b1c810d7f2f82c8151c025ce75775bf.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:668
- - C:\Windows\system32\wbem\wmic.exe
    "C:\tkby\q\kl\..\..\..\Windows\mt\upokq\..\..\system32\mp\idu\knbmu\..\..\..\wbem\g\..\wmic.exe" shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1724

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1112

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
1⤵
PID:1376

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x55c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/668-57-0x0000000075D31000-0x0000000075D33000-memory.dmp

Filesize
8KB

Download
memory/668-58-0x00000000002A0000-0x00000000002FD000-memory.dmp

Filesize
372KB

Download
memory/668-61-0x00000000002A0000-0x00000000002FD000-memory.dmp

Filesize
372KB

Download
memory/1088-55-0x000007FEFC291000-0x000007FEFC293000-memory.dmp

Filesize
8KB

Download