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Analysis
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max time kernel
159s -
max time network
179s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
16/02/2022, 23:06
Static task
static1
Behavioral task
behavioral1
Sample
32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe
Resource
win10v2004-en-20220113
General
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Target
32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe
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Size
1.1MB
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MD5
f457bb5060543db3146291d8c9ad1001
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SHA1
c62d0b80847bf15ad0ab9b54b3ddc3180952c324
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SHA256
32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b
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SHA512
70a9a7262d86b0ec85fe728317525ebfae2019a5b2bad4c6435fc5ec1659fe2bd730be79b2ff20e65dedd099bcf420c530023eef06f5c87529d951177c3ff408
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6c2b0cc88cfdc05e
https://mazedecrypt.top/6c2b0cc88cfdc05e
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\CheckpointJoin.tiff 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File renamed C:\Users\Admin\Pictures\CheckpointJoin.tiff => C:\Users\Admin\Pictures\CheckpointJoin.tiff.io2SGVj 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File renamed C:\Users\Admin\Pictures\ExportFormat.png => C:\Users\Admin\Pictures\ExportFormat.png.897T 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File renamed C:\Users\Admin\Pictures\StartWait.raw => C:\Users\Admin\Pictures\StartWait.raw.nhEc6XZ 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.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 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6c2b0cc88cfdc05e.tmp 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6c2b0cc88cfdc05e.tmp 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe -
Drops file in Program Files directory 42 IoCs
description ioc Process File created C:\Program Files\DECRYPT-FILES.txt 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\GroupOpen.dxf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\MergeAssert.ogg 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\StartRemove.mpa 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\AssertShow.scf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ConvertFromStep.ttc 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\HideMeasure.rtf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\JoinUnlock.vsw 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RepairMount.snd 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RevokeSave.dxf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\DenyUninstall.bat 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ReadPublish.xht 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ReceivePublish.zip 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ReceiveRead.xla 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\MergeComplete.dxf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ResumePush.eprtx 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\SplitExport.ico 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\6c2b0cc88cfdc05e.tmp 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\AssertOut.lock 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\DisableConnect.jfif 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\GrantSet.vsdx 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\CopyMove.jpe 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\InstallConvert.ppsm 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RenameClear.rmi 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\DisconnectUpdate.m4a 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RestartUnregister.xps 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RevokeComplete.mpv2 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RevokeReceive.css 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\RedoImport.search-ms 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ResetRevoke.pdf 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\SubmitSuspend.DVR-MS 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\UnprotectGroup.wpl 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ConnectUnblock.7z 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ConvertInstall.asx 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ExportSend.ps1xml 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\OptimizeSave.vsd 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files (x86)\6c2b0cc88cfdc05e.tmp 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\CompressPush.hta 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ConfirmSubmit.wmx 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\DisableFind.zip 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe File opened for modification C:\Program Files\ReceiveReset.asp 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 660 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe 660 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeBackupPrivilege 1828 vssvc.exe Token: SeRestorePrivilege 1828 vssvc.exe Token: SeAuditPrivilege 1828 vssvc.exe Token: SeIncreaseQuotaPrivilege 1788 wmic.exe Token: SeSecurityPrivilege 1788 wmic.exe Token: SeTakeOwnershipPrivilege 1788 wmic.exe Token: SeLoadDriverPrivilege 1788 wmic.exe Token: SeSystemProfilePrivilege 1788 wmic.exe Token: SeSystemtimePrivilege 1788 wmic.exe Token: SeProfSingleProcessPrivilege 1788 wmic.exe Token: SeIncBasePriorityPrivilege 1788 wmic.exe Token: SeCreatePagefilePrivilege 1788 wmic.exe Token: SeBackupPrivilege 1788 wmic.exe Token: SeRestorePrivilege 1788 wmic.exe Token: SeShutdownPrivilege 1788 wmic.exe Token: SeDebugPrivilege 1788 wmic.exe Token: SeSystemEnvironmentPrivilege 1788 wmic.exe Token: SeRemoteShutdownPrivilege 1788 wmic.exe Token: SeUndockPrivilege 1788 wmic.exe Token: SeManageVolumePrivilege 1788 wmic.exe Token: 33 1788 wmic.exe Token: 34 1788 wmic.exe Token: 35 1788 wmic.exe Token: 36 1788 wmic.exe Token: SeIncreaseQuotaPrivilege 1788 wmic.exe Token: SeSecurityPrivilege 1788 wmic.exe Token: SeTakeOwnershipPrivilege 1788 wmic.exe Token: SeLoadDriverPrivilege 1788 wmic.exe Token: SeSystemProfilePrivilege 1788 wmic.exe Token: SeSystemtimePrivilege 1788 wmic.exe Token: SeProfSingleProcessPrivilege 1788 wmic.exe Token: SeIncBasePriorityPrivilege 1788 wmic.exe Token: SeCreatePagefilePrivilege 1788 wmic.exe Token: SeBackupPrivilege 1788 wmic.exe Token: SeRestorePrivilege 1788 wmic.exe Token: SeShutdownPrivilege 1788 wmic.exe Token: SeDebugPrivilege 1788 wmic.exe Token: SeSystemEnvironmentPrivilege 1788 wmic.exe Token: SeRemoteShutdownPrivilege 1788 wmic.exe Token: SeUndockPrivilege 1788 wmic.exe Token: SeManageVolumePrivilege 1788 wmic.exe Token: 33 1788 wmic.exe Token: 34 1788 wmic.exe Token: 35 1788 wmic.exe Token: 36 1788 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 660 wrote to memory of 1788 660 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe 94 PID 660 wrote to memory of 1788 660 32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.exe"C:\Users\Admin\AppData\Local\Temp\32736237e94a8321b4b03ba56485dff8b438cb232f2ff57c9c045f5cc7b5dc2b.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:660 -
C:\Windows\system32\wbem\wmic.exe"C:\gfirj\..\Windows\iauer\..\system32\dx\ui\..\..\wbem\qhfb\rk\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1788
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1828