Analysis
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max time kernel
161s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
16-02-2022 22:55
Static task
static1
Behavioral task
behavioral1
Sample
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe
Resource
win10v2004-en-20220113
General
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Target
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe
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Size
478KB
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MD5
deebbea18401e8b5e83c410c6d3a8b4e
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SHA1
96d81e77b6af8f54a5ac07b2c613a5655dd05353
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SHA256
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af
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SHA512
a0396c82fb68cf3931f0a2fcdba580d51ec6069c82b4e3853341fc6971a4bde4dbeb0094b94379d1dce4b1d8c43703e86266156ecbee89f9c939a71cafe9d487
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/8802099c35cd74e5
https://mazedecrypt.top/8802099c35cd74e5
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 8 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exedescription ioc Process File renamed C:\Users\Admin\Pictures\UnprotectGroup.crw => C:\Users\Admin\Pictures\UnprotectGroup.crw.rwop 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File renamed C:\Users\Admin\Pictures\AssertGroup.raw => C:\Users\Admin\Pictures\AssertGroup.raw.MzDfB 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File renamed C:\Users\Admin\Pictures\EditAdd.crw => C:\Users\Admin\Pictures\EditAdd.crw.ZBrwR 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Users\Admin\Pictures\UninstallImport.tiff 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File renamed C:\Users\Admin\Pictures\UninstallImport.tiff => C:\Users\Admin\Pictures\UninstallImport.tiff.faekP4E 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File renamed C:\Users\Admin\Pictures\UnlockSet.raw => C:\Users\Admin\Pictures\UnlockSet.raw.faekP4E 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Users\Admin\Pictures\UnlockUnpublish.tiff 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File renamed C:\Users\Admin\Pictures\UnlockUnpublish.tiff => C:\Users\Admin\Pictures\UnlockUnpublish.tiff.faekP4E 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe -
Windows Defender anti-emulation file check 1 TTPs
Defender's emulator always creates certain fake files which can be used to detect it.
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Drops startup file 4 IoCs
Processes:
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mrgtz.tmp 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\mrgtz.tmp 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.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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Drops file in Program Files directory 26 IoCs
Processes:
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exedescription ioc Process File opened for modification C:\Program Files\DenyStop.xml 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\SelectRegister.vbs 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\UnlockComplete.dotx 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\ProtectGet.mid 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\RequestStart.html 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\SearchSet.wps 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\TraceExpand.wav 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\DismountTrace.vb 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\mrgtz.tmp 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\NewSet.nfo 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\InstallOut.mpeg 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\RemoveShow.reg 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\ResumeUnregister.eprtx 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\UndoShow.jpe 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files (x86)\mrgtz.tmp 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\BlockExit.m3u 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\CompleteExport.ico 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\DebugResolve.xml 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\SearchEdit.snd 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\StopUpdate.AAC 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\SuspendCompress.midi 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\WatchUnpublish.scf 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File created C:\Program Files\DECRYPT-FILES.txt 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\MoveSelect.dib 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe File opened for modification C:\Program Files\OutRestore.xht 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe -
Drops file in Windows directory 7 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc Process File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exepid Process 4040 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe 4040 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe -
Suspicious use of AdjustPrivilegeToken 54 IoCs
Processes:
vssvc.exesvchost.exewmic.exeTiWorker.exedescription pid Process Token: SeBackupPrivilege 220 vssvc.exe Token: SeRestorePrivilege 220 vssvc.exe Token: SeAuditPrivilege 220 vssvc.exe Token: SeShutdownPrivilege 3544 svchost.exe Token: SeCreatePagefilePrivilege 3544 svchost.exe Token: SeShutdownPrivilege 3544 svchost.exe Token: SeCreatePagefilePrivilege 3544 svchost.exe Token: SeShutdownPrivilege 3544 svchost.exe Token: SeCreatePagefilePrivilege 3544 svchost.exe Token: SeIncreaseQuotaPrivilege 4676 wmic.exe Token: SeSecurityPrivilege 4676 wmic.exe Token: SeTakeOwnershipPrivilege 4676 wmic.exe Token: SeLoadDriverPrivilege 4676 wmic.exe Token: SeSystemProfilePrivilege 4676 wmic.exe Token: SeSystemtimePrivilege 4676 wmic.exe Token: SeProfSingleProcessPrivilege 4676 wmic.exe Token: SeIncBasePriorityPrivilege 4676 wmic.exe Token: SeCreatePagefilePrivilege 4676 wmic.exe Token: SeBackupPrivilege 4676 wmic.exe Token: SeRestorePrivilege 4676 wmic.exe Token: SeShutdownPrivilege 4676 wmic.exe Token: SeDebugPrivilege 4676 wmic.exe Token: SeSystemEnvironmentPrivilege 4676 wmic.exe Token: SeRemoteShutdownPrivilege 4676 wmic.exe Token: SeUndockPrivilege 4676 wmic.exe Token: SeManageVolumePrivilege 4676 wmic.exe Token: 33 4676 wmic.exe Token: 34 4676 wmic.exe Token: 35 4676 wmic.exe Token: 36 4676 wmic.exe Token: SeIncreaseQuotaPrivilege 4676 wmic.exe Token: SeSecurityPrivilege 4676 wmic.exe Token: SeTakeOwnershipPrivilege 4676 wmic.exe Token: SeLoadDriverPrivilege 4676 wmic.exe Token: SeSystemProfilePrivilege 4676 wmic.exe Token: SeSystemtimePrivilege 4676 wmic.exe Token: SeProfSingleProcessPrivilege 4676 wmic.exe Token: SeIncBasePriorityPrivilege 4676 wmic.exe Token: SeCreatePagefilePrivilege 4676 wmic.exe Token: SeBackupPrivilege 4676 wmic.exe Token: SeRestorePrivilege 4676 wmic.exe Token: SeShutdownPrivilege 4676 wmic.exe Token: SeDebugPrivilege 4676 wmic.exe Token: SeSystemEnvironmentPrivilege 4676 wmic.exe Token: SeRemoteShutdownPrivilege 4676 wmic.exe Token: SeUndockPrivilege 4676 wmic.exe Token: SeManageVolumePrivilege 4676 wmic.exe Token: 33 4676 wmic.exe Token: 34 4676 wmic.exe Token: 35 4676 wmic.exe Token: 36 4676 wmic.exe Token: SeSecurityPrivilege 264 TiWorker.exe Token: SeRestorePrivilege 264 TiWorker.exe Token: SeBackupPrivilege 264 TiWorker.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exedescription pid Process procid_target PID 4040 wrote to memory of 4676 4040 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe 102 PID 4040 wrote to memory of 4676 4040 6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe"C:\Users\Admin\AppData\Local\Temp\6a22220c0fe5f578da11ce22945b63d93172b75452996defdc2ff48756bde6af.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4040 -
C:\Windows\system32\wbem\wmic.exe"C:\vui\k\pnwo\..\..\..\Windows\c\..\system32\cgen\..\wbem\ffu\wchlq\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4676
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:220
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3544
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:264