Analysis
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max time kernel
147s -
max time network
166s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:58
Static task
static1
Behavioral task
behavioral1
Sample
dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe
Resource
win7v20210410
General
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Target
dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe
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Size
364KB
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MD5
c9ea6430da4e72b672ce29e56ecad603
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SHA1
31c3f7b523e1e406d330958e28882227765c3c5e
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SHA256
dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b
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SHA512
4a7d30f1c8409299b9df27406fdcdabcdd834d292ebf27f8f0f7766d2a4b7b0cda12307f1d2a79bf1fdefee0bca6638057479ca301ebbb8d6638c0350ba8934e
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/86ac0975f99fe2aa
https://mazedecrypt.top/86ac0975f99fe2aa
Signatures
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Maze
Ransomware family also known as ChaCha.
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suricata: ET MALWARE Maze/ID Ransomware Activity
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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 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\BlockSwitch.tif => C:\Users\Admin\Pictures\BlockSwitch.tif.Tciac4 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\CompressRevoke.raw => C:\Users\Admin\Pictures\CompressRevoke.raw.IaQNGPe dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Users\Admin\Pictures\ProtectMove.tiff dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\RenameRead.raw => C:\Users\Admin\Pictures\RenameRead.raw.EmAQu dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Users\Admin\Pictures\SaveHide.tiff dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\ProtectMove.tiff => C:\Users\Admin\Pictures\ProtectMove.tiff.j74sV dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\SaveHide.tiff => C:\Users\Admin\Pictures\SaveHide.tiff.ljJztD dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\SelectTrace.raw => C:\Users\Admin\Pictures\SelectTrace.raw.ljJztD dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\SplitSave.png => C:\Users\Admin\Pictures\SplitSave.png.YZ4Onx dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File renamed C:\Users\Admin\Pictures\UpdateJoin.tif => C:\Users\Admin\Pictures\UpdateJoin.tif.cP0Qbl2 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.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 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\86ac0975f99fe2aa.tmp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\86ac0975f99fe2aa.tmp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.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-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe -
Drops file in Program Files directory 36 IoCs
description ioc Process File opened for modification C:\Program Files\CompressTest.rtf dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\RequestResolve.otf dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\RevokeCheckpoint.xlsm dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\StepSubmit.bat dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\UpdatePublish.xlsb dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\BlockRename.png dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\DebugMerge.ps1 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\DisconnectDisable.3gpp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ImportEnable.rm dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ReadUninstall.temp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\StopEnable.m4v dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\AddUnpublish.ppsm dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\BlockDisable.wmf dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ClearRepair.tiff dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ConvertFromEdit.wvx dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ExitStep.vssx dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\SendSuspend.M2TS dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\EnterEnable.png dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\GetConfirm.contact dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\SearchUninstall.mp2v dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\WaitPing.mpeg dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\WatchSelect.cab dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\MoveLock.emf dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files (x86)\86ac0975f99fe2aa.tmp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\BlockDisable.rle dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\CompareRevoke.wvx dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\CompleteGet.3gp2 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\DisableTest.dwg dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\PublishBlock.3g2 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File created C:\Program Files\DECRYPT-FILES.txt dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\CheckpointInstall.pps dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ImportDebug.search-ms dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\ResumeStop.m4v dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\86ac0975f99fe2aa.tmp dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe File opened for modification C:\Program Files\SyncSet.cab dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 416 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe 416 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeBackupPrivilege 648 vssvc.exe Token: SeRestorePrivilege 648 vssvc.exe Token: SeAuditPrivilege 648 vssvc.exe Token: SeIncreaseQuotaPrivilege 1828 wmic.exe Token: SeSecurityPrivilege 1828 wmic.exe Token: SeTakeOwnershipPrivilege 1828 wmic.exe Token: SeLoadDriverPrivilege 1828 wmic.exe Token: SeSystemProfilePrivilege 1828 wmic.exe Token: SeSystemtimePrivilege 1828 wmic.exe Token: SeProfSingleProcessPrivilege 1828 wmic.exe Token: SeIncBasePriorityPrivilege 1828 wmic.exe Token: SeCreatePagefilePrivilege 1828 wmic.exe Token: SeBackupPrivilege 1828 wmic.exe Token: SeRestorePrivilege 1828 wmic.exe Token: SeShutdownPrivilege 1828 wmic.exe Token: SeDebugPrivilege 1828 wmic.exe Token: SeSystemEnvironmentPrivilege 1828 wmic.exe Token: SeRemoteShutdownPrivilege 1828 wmic.exe Token: SeUndockPrivilege 1828 wmic.exe Token: SeManageVolumePrivilege 1828 wmic.exe Token: 33 1828 wmic.exe Token: 34 1828 wmic.exe Token: 35 1828 wmic.exe Token: 36 1828 wmic.exe Token: SeIncreaseQuotaPrivilege 1828 wmic.exe Token: SeSecurityPrivilege 1828 wmic.exe Token: SeTakeOwnershipPrivilege 1828 wmic.exe Token: SeLoadDriverPrivilege 1828 wmic.exe Token: SeSystemProfilePrivilege 1828 wmic.exe Token: SeSystemtimePrivilege 1828 wmic.exe Token: SeProfSingleProcessPrivilege 1828 wmic.exe Token: SeIncBasePriorityPrivilege 1828 wmic.exe Token: SeCreatePagefilePrivilege 1828 wmic.exe Token: SeBackupPrivilege 1828 wmic.exe Token: SeRestorePrivilege 1828 wmic.exe Token: SeShutdownPrivilege 1828 wmic.exe Token: SeDebugPrivilege 1828 wmic.exe Token: SeSystemEnvironmentPrivilege 1828 wmic.exe Token: SeRemoteShutdownPrivilege 1828 wmic.exe Token: SeUndockPrivilege 1828 wmic.exe Token: SeManageVolumePrivilege 1828 wmic.exe Token: 33 1828 wmic.exe Token: 34 1828 wmic.exe Token: 35 1828 wmic.exe Token: 36 1828 wmic.exe Token: 33 3932 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3932 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 416 wrote to memory of 1828 416 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe 81 PID 416 wrote to memory of 1828 416 dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.exe"C:\Users\Admin\AppData\Local\Temp\dee863ffa251717b8e56a96e2f9f0b41b09897d3c7cb2e8159fcb0ac0783611b.sample.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:416 -
C:\Windows\system32\wbem\wmic.exe"C:\j\qgojd\..\..\Windows\nx\xpn\pvf\..\..\..\system32\rfyf\frcqu\..\..\wbem\r\qxmik\by\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1828
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:648
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3d81⤵
- Suspicious use of AdjustPrivilegeToken
PID:3932