Analysis Overview
SHA256
153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57
Threat Level: Known bad
The file 153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57 was found to be: Known bad.
Malicious Activity Summary
Maze
Deletes shadow copies
Modifies extensions of user files
Drops startup file
Reads user/profile data of web browsers
Sets desktop wallpaper using registry
Drops file in Program Files directory
Drops file in Windows directory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-02-16 23:10
Signatures
Analysis: behavioral2
Detonation Overview
Submitted
2022-02-16 23:10
Reported
2022-02-16 23:18
Platform
win10v2004-en-20220113
Max time kernel
173s
Max time network
180s
Command Line
Signatures
Maze
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rr91c2xjt.tmp | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\rr91c2xjt.tmp | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Reads user/profile data of web browsers
Drops file in Program Files directory
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\ReportingEvents.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\Logs\CBS\CBS.log | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe | N/A |
| File opened for modification | C:\Windows\WinSxS\pending.xml | C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe | N/A |
| File opened for modification | C:\Windows\WindowsUpdate.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log | C:\Windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\SoftwareDistribution\DataStore\DataStore.edb | C:\Windows\system32\svchost.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Processes
C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe
"C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe"
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 93.184.220.29:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.11:80 | tcp | |
| RU | 91.218.114.11:80 | tcp | |
| US | 13.107.21.200:443 | tcp | |
| RU | 91.218.114.25:80 | tcp |
Files
memory/3972-130-0x0000000002560000-0x00000000025BC000-memory.dmp
memory/3972-131-0x0000000002700000-0x000000000275D000-memory.dmp
memory/3972-135-0x0000000002701000-0x0000000002739000-memory.dmp
memory/4684-136-0x0000021EA4B60000-0x0000021EA4B70000-memory.dmp
memory/4684-137-0x0000021EA5470000-0x0000021EA5480000-memory.dmp
memory/4684-138-0x0000021EA7B30000-0x0000021EA7B34000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2022-02-16 23:10
Reported
2022-02-16 23:18
Platform
win7-en-20211208
Max time kernel
159s
Max time network
177s
Command Line
Signatures
Maze
Deletes shadow copies
Modifies extensions of user files
| Description | Indicator | Process | Target |
| File renamed | C:\Users\Admin\Pictures\MergeUninstall.tif => C:\Users\Admin\Pictures\MergeUninstall.tif.HG21 | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\UnblockExport.crw => C:\Users\Admin\Pictures\UnblockExport.crw.HG21 | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\WatchSearch.png => C:\Users\Admin\Pictures\WatchSearch.png.3DOu | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\CloseOut.tif => C:\Users\Admin\Pictures\CloseOut.tif.MBC9NPe | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\CloseSync.crw => C:\Users\Admin\Pictures\CloseSync.crw.MBC9NPe | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\EnterReceive.crw => C:\Users\Admin\Pictures\EnterReceive.crw.MBC9NPe | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\InitializeMeasure.png => C:\Users\Admin\Pictures\InitializeMeasure.png.MBC9NPe | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File renamed | C:\Users\Admin\Pictures\MeasureMerge.raw => C:\Users\Admin\Pictures\MeasureMerge.raw.HG21 | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mdpvh.tmp | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Reads user/profile data of web browsers
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Drops file in Program Files directory
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 34 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 35 | N/A | C:\Windows\system32\wbem\wmic.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1480 wrote to memory of 1604 | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | C:\Windows\system32\wbem\wmic.exe |
| PID 1480 wrote to memory of 1604 | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | C:\Windows\system32\wbem\wmic.exe |
| PID 1480 wrote to memory of 1604 | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | C:\Windows\system32\wbem\wmic.exe |
| PID 1480 wrote to memory of 1604 | N/A | C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe | C:\Windows\system32\wbem\wmic.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe
"C:\Users\Admin\AppData\Local\Temp\153defee225de889d2ac66605f391f4aeaa8b867b4093c686941e64d0d245a57.exe"
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\system32\wbem\wmic.exe
"C:\d\v\wwbh\..\..\..\Windows\gjop\vyqml\..\..\system32\njbiu\..\wbem\ttpj\qfa\..\..\wmic.exe" shadowcopy delete
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{3F6B5E16-092A-41ED-930B-0B4125D91D4E}
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x478
Network
| Country | Destination | Domain | Proto |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.11:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.11:80 | tcp | |
| RU | 91.218.114.4:80 | tcp | |
| RU | 91.218.114.11:80 | tcp |
Files
memory/1480-55-0x0000000074B21000-0x0000000074B23000-memory.dmp
memory/1480-56-0x0000000000180000-0x00000000001DC000-memory.dmp
memory/1480-57-0x0000000000200000-0x000000000025D000-memory.dmp
memory/1480-61-0x0000000000201000-0x0000000000239000-memory.dmp