maze | a14dbce0af024a09a6fcae63d4aac57dba6d70a226a62a568c20fdc67067bc8d

Analysis

max time kernel
101s
max time network
110s
platform
windows10_x64
resource
win10v20201028
submitted
15-11-2020 17:43

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General

Target

usa.dll
Size

490KB
MD5

89e051c937e92424cc0e851894b11c8f
SHA1

cc43bc715f13e7ce869231b330b9b5884607d372
SHA256

a14dbce0af024a09a6fcae63d4aac57dba6d70a226a62a568c20fdc67067bc8d
SHA512

644c12f221e6a3c7ebee5232bf1a479d8847c4744c0ea8cfef81a9d82e61421cf5b6cc9a603e036e30fb2b3cb4ad0630c096b862406664e37e26c257a0f1e64f

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/6c490cc3d163bfec 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/6c490cc3d163bfec 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/6c490cc3d163bfec

https://mazedecrypt.top/6c490cc3d163bfec

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 7 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\FindPublish.tif => C:\Users\Admin\Pictures\FindPublish.tif.xfzMKqP	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\JoinRepair.tif => C:\Users\Admin\Pictures\JoinRepair.tif.atmg	regsvr32.exe
File opened for modification	C:\Users\Admin\Pictures\RequestRegister.tiff	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\RequestRegister.tiff => C:\Users\Admin\Pictures\RequestRegister.tiff.2IuR	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\SyncConvertFrom.crw => C:\Users\Admin\Pictures\SyncConvertFrom.crw.r0BLz	regsvr32.exe
File opened for modification	C:\Users\Admin\Pictures\WaitRestart.tiff	regsvr32.exe
File renamed	C:\Users\Admin\Pictures\WaitRestart.tiff => C:\Users\Admin\Pictures\WaitRestart.tiff.r0BLz	regsvr32.exe

Drops startup file 4 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\6c490cc3d163bfec.tmp	regsvr32.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6c490cc3d163bfec.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\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe
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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\111.bmp"	regsvr32.exe

Drops file in Program Files directory 30 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\BackupClear.wax	regsvr32.exe
File opened for modification	C:\Program Files\ResolveConvert.mpv2	regsvr32.exe
File opened for modification	C:\Program Files\OptimizeSwitch.M2TS	regsvr32.exe
File opened for modification	C:\Program Files\UnlockLimit.dotx	regsvr32.exe
File opened for modification	C:\Program Files\UpdateGrant.ADTS	regsvr32.exe
File created	C:\Program Files\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\HideDismount.svgz	regsvr32.exe
File opened for modification	C:\Program Files\OutGet.vb	regsvr32.exe
File created	C:\Program Files (x86)\DECRYPT-FILES.txt	regsvr32.exe
File opened for modification	C:\Program Files\UseClose.docm	regsvr32.exe
File opened for modification	C:\Program Files\6c490cc3d163bfec.tmp	regsvr32.exe
File opened for modification	C:\Program Files\DebugOpen.vstx	regsvr32.exe
File opened for modification	C:\Program Files\DismountDisable.docx	regsvr32.exe
File opened for modification	C:\Program Files\JoinOpen.potm	regsvr32.exe
File opened for modification	C:\Program Files\SendOpen.wmf	regsvr32.exe
File opened for modification	C:\Program Files\ExportEnable.m4v	regsvr32.exe
File opened for modification	C:\Program Files\FormatInitialize.dib	regsvr32.exe
File opened for modification	C:\Program Files\MergeDeny.ttf	regsvr32.exe
File opened for modification	C:\Program Files\RenameEdit.xlsm	regsvr32.exe
File opened for modification	C:\Program Files\UnprotectNew.html	regsvr32.exe
File opened for modification	C:\Program Files\GrantSuspend.mhtml	regsvr32.exe
File opened for modification	C:\Program Files\ImportCompare.search-ms	regsvr32.exe
File opened for modification	C:\Program Files\UnlockInvoke.pps	regsvr32.exe
File opened for modification	C:\Program Files\UnprotectApprove.wm	regsvr32.exe
File opened for modification	C:\Program Files\SyncMeasure.mp4	regsvr32.exe
File opened for modification	C:\Program Files (x86)\6c490cc3d163bfec.tmp	regsvr32.exe
File opened for modification	C:\Program Files\InvokeApprove.mht	regsvr32.exe
File opened for modification	C:\Program Files\MountResolve.dotx	regsvr32.exe
File opened for modification	C:\Program Files\RemovePop.mpeg2	regsvr32.exe
File opened for modification	C:\Program Files\SuspendSubmit.mpv2	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
896	regsvr32.exe
896	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeBackupPrivilege	3600	vssvc.exe
Token: SeRestorePrivilege	3600	vssvc.exe
Token: SeAuditPrivilege	3600	vssvc.exe
Token: SeIncreaseQuotaPrivilege	364	wmic.exe
Token: SeSecurityPrivilege	364	wmic.exe
Token: SeTakeOwnershipPrivilege	364	wmic.exe
Token: SeLoadDriverPrivilege	364	wmic.exe
Token: SeSystemProfilePrivilege	364	wmic.exe
Token: SeSystemtimePrivilege	364	wmic.exe
Token: SeProfSingleProcessPrivilege	364	wmic.exe
Token: SeIncBasePriorityPrivilege	364	wmic.exe
Token: SeCreatePagefilePrivilege	364	wmic.exe
Token: SeBackupPrivilege	364	wmic.exe
Token: SeRestorePrivilege	364	wmic.exe
Token: SeShutdownPrivilege	364	wmic.exe
Token: SeDebugPrivilege	364	wmic.exe
Token: SeSystemEnvironmentPrivilege	364	wmic.exe
Token: SeRemoteShutdownPrivilege	364	wmic.exe
Token: SeUndockPrivilege	364	wmic.exe
Token: SeManageVolumePrivilege	364	wmic.exe
Token: 33	364	wmic.exe
Token: 34	364	wmic.exe
Token: 35	364	wmic.exe
Token: 36	364	wmic.exe
Token: SeIncreaseQuotaPrivilege	364	wmic.exe
Token: SeSecurityPrivilege	364	wmic.exe
Token: SeTakeOwnershipPrivilege	364	wmic.exe
Token: SeLoadDriverPrivilege	364	wmic.exe
Token: SeSystemProfilePrivilege	364	wmic.exe
Token: SeSystemtimePrivilege	364	wmic.exe
Token: SeProfSingleProcessPrivilege	364	wmic.exe
Token: SeIncBasePriorityPrivilege	364	wmic.exe
Token: SeCreatePagefilePrivilege	364	wmic.exe
Token: SeBackupPrivilege	364	wmic.exe
Token: SeRestorePrivilege	364	wmic.exe
Token: SeShutdownPrivilege	364	wmic.exe
Token: SeDebugPrivilege	364	wmic.exe
Token: SeSystemEnvironmentPrivilege	364	wmic.exe
Token: SeRemoteShutdownPrivilege	364	wmic.exe
Token: SeUndockPrivilege	364	wmic.exe
Token: SeManageVolumePrivilege	364	wmic.exe
Token: 33	364	wmic.exe
Token: 34	364	wmic.exe
Token: 35	364	wmic.exe
Token: 36	364	wmic.exe
Token: 33	3140	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3140	AUDIODG.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 896	984	regsvr32.exe	70
PID 984 wrote to memory of 896	984	regsvr32.exe	70
PID 984 wrote to memory of 896	984	regsvr32.exe	70
PID 896 wrote to memory of 364	896	regsvr32.exe	82
PID 896 wrote to memory of 364	896	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\usa.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:984
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\usa.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:896
- - C:\Windows\system32\wbem\wmic.exe
    "C:\gs\e\..\..\Windows\yrwj\acb\..\..\system32\hdkc\j\n\..\..\..\wbem\fwb\..\wmic.exe" shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:364

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:3600

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x41c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3140

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/896-1-0x0000000003EC0000-0x0000000003F1E000-memory.dmp

Filesize
376KB

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memory/896-3-0x0000000003EC0000-0x0000000003F1E000-memory.dmp

Filesize
376KB

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