Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
15-02-2023 11:24
Static task
static1
Behavioral task
behavioral1
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
Resource
win10v2004-20221111-en
General
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Target
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe
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Size
898KB
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MD5
61b32a82577a7ea823ff7303ab6b4283
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SHA1
9107c719795fa5768498abb4fed11d907e44d55e
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SHA256
4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167
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SHA512
86ac9d3d0804f5dd3ebe08ab59058363bceeaa3f42d2d482f97ce688837b3b81693fde2b973250b93ee3223318b0f8e4f2faf6b0f91017807feacabce979d700
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SSDEEP
12288:20lnPLRBrenjExzDKNg6dNoQl+vtMyOo/mSVTWa5QLeuXwuxbvRr/LpiRPMBp:201PLX0GferoQOMyySVa/VFbvhtiRPo
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6bed0cae75af675b
https://mazedecrypt.top/6bed0cae75af675b
Signatures
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Maze
Ransomware family also known as ChaCha.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 9 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\DisconnectGet.crw => C:\Users\Admin\Pictures\DisconnectGet.crw.16ain 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\DismountSearch.png => C:\Users\Admin\Pictures\DismountSearch.png.16ain 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\LockMeasure.crw => C:\Users\Admin\Pictures\LockMeasure.crw.JVjqbz 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\RenameEnable.raw => C:\Users\Admin\Pictures\RenameEnable.raw.3g8hKq 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\Pictures\BackupConvertTo.tiff 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\BackupConvertTo.tiff => C:\Users\Admin\Pictures\BackupConvertTo.tiff.FER3 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\Pictures\SaveEnter.tiff 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\SaveEnter.tiff => C:\Users\Admin\Pictures\SaveEnter.tiff.3g8hKq 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File renamed C:\Users\Admin\Pictures\TestFormat.png => C:\Users\Admin\Pictures\TestFormat.png.6OjbqJF 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Drops startup file 4 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6bed0cae75af675b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6bed0cae75af675b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Drops file in Program Files directory 23 IoCs
description ioc Process File opened for modification C:\Program Files\JoinSubmit.AAC 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\OutRequest.css 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SplitMount.reg 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\6bed0cae75af675b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ConvertRequest.wmx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ExportMove.tif 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ImportDisconnect.php 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files (x86)\6bed0cae75af675b.tmp 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\UnregisterSend.ttc 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ClearUndo.avi 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\InitializeCopy.ogg 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ProtectRequest.pptx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\RepairGroup.xls 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\TraceInitialize.raw 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\GetDismount.edrwx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\MountSubmit.7z 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\ClearTest.vssx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\FormatResume.crw 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\LockStep.vsx 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SyncInitialize.contact 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe File opened for modification C:\Program Files\SyncMerge.mp3 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1332 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 1332 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeBackupPrivilege 2264 vssvc.exe Token: SeRestorePrivilege 2264 vssvc.exe Token: SeAuditPrivilege 2264 vssvc.exe Token: SeIncreaseQuotaPrivilege 1476 wmic.exe Token: SeSecurityPrivilege 1476 wmic.exe Token: SeTakeOwnershipPrivilege 1476 wmic.exe Token: SeLoadDriverPrivilege 1476 wmic.exe Token: SeSystemProfilePrivilege 1476 wmic.exe Token: SeSystemtimePrivilege 1476 wmic.exe Token: SeProfSingleProcessPrivilege 1476 wmic.exe Token: SeIncBasePriorityPrivilege 1476 wmic.exe Token: SeCreatePagefilePrivilege 1476 wmic.exe Token: SeBackupPrivilege 1476 wmic.exe Token: SeRestorePrivilege 1476 wmic.exe Token: SeShutdownPrivilege 1476 wmic.exe Token: SeDebugPrivilege 1476 wmic.exe Token: SeSystemEnvironmentPrivilege 1476 wmic.exe Token: SeRemoteShutdownPrivilege 1476 wmic.exe Token: SeUndockPrivilege 1476 wmic.exe Token: SeManageVolumePrivilege 1476 wmic.exe Token: 33 1476 wmic.exe Token: 34 1476 wmic.exe Token: 35 1476 wmic.exe Token: 36 1476 wmic.exe Token: SeIncreaseQuotaPrivilege 1476 wmic.exe Token: SeSecurityPrivilege 1476 wmic.exe Token: SeTakeOwnershipPrivilege 1476 wmic.exe Token: SeLoadDriverPrivilege 1476 wmic.exe Token: SeSystemProfilePrivilege 1476 wmic.exe Token: SeSystemtimePrivilege 1476 wmic.exe Token: SeProfSingleProcessPrivilege 1476 wmic.exe Token: SeIncBasePriorityPrivilege 1476 wmic.exe Token: SeCreatePagefilePrivilege 1476 wmic.exe Token: SeBackupPrivilege 1476 wmic.exe Token: SeRestorePrivilege 1476 wmic.exe Token: SeShutdownPrivilege 1476 wmic.exe Token: SeDebugPrivilege 1476 wmic.exe Token: SeSystemEnvironmentPrivilege 1476 wmic.exe Token: SeRemoteShutdownPrivilege 1476 wmic.exe Token: SeUndockPrivilege 1476 wmic.exe Token: SeManageVolumePrivilege 1476 wmic.exe Token: 33 1476 wmic.exe Token: 34 1476 wmic.exe Token: 35 1476 wmic.exe Token: 36 1476 wmic.exe Token: 33 4772 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 4772 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1332 wrote to memory of 1476 1332 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 89 PID 1332 wrote to memory of 1476 1332 4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe"C:\Users\Admin\AppData\Local\Temp\4263eacd358d5ef9efacff1f63ff79487639136c0268938755a4bfe3f5797167.exe"1⤵
- 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:1332 -
C:\Windows\system32\wbem\wmic.exe"C:\gvqaw\..\Windows\pnah\..\system32\lm\elib\..\..\wbem\paf\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1476
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2264
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4b0 0x4b81⤵
- Suspicious use of AdjustPrivilegeToken
PID:4772