| download: | aso3setup_systweaksite-systweaksite.exe |
| Full analysis: | https://app.any.run/tasks/2d9c190e-fae8-49fb-b1be-6866643a07b3 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | May 21, 2022, 08:19:40 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 48D3BA45D2E16CA28AE538F344807033 |
| SHA1: | 9AF5850B8A327B7F564D3D3BEEFF55705BA598DD |
| SHA256: | 27C86CC6D11495EF9197524DA76DA32BFBAFFD82F45C7A3DFDD81E39CDD40472 |
| SSDEEP: | 393216:fm9Sv7EjPP0oS8IpEQHVZHPqvHZ44OXJz78/c:fm927ecohvMzQGXN78/c |
| .exe | | | Win32 Executable (generic) (42.6) |
|---|---|---|
| .exe | | | Win16/32 Executable Delphi generic (19.5) |
| .exe | | | Generic Win/DOS Executable (18.9) |
| .exe | | | DOS Executable Generic (18.9) |
| ProductVersion: | 3.11.4111.18470 |
|---|---|
| ProductName: | Advanced System Optimizer |
| LegalCopyright: | Copyright © 1999 - 2021 Systweak Software, All rights reserved. |
| FileVersion: | 3.11.4111.18470 |
| FileDescription: | Advanced System Optimizer |
| CompanyName: | Systweak Software |
| Comments: | This installation was built with Inno Setup. |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 3.11.4111.18470 |
| FileVersionNumber: | 3.11.4111.18470 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 5 |
| ImageVersion: | 6 |
| OSVersion: | 5 |
| EntryPoint: | 0x117dc |
| UninitializedDataSize: | - |
| InitializedDataSize: | 53760 |
| CodeSize: | 66560 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 2016:04:06 16:39:04+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 06-Apr-2016 14:39:04 |
| Detected languages: |
|
| Comments: | This installation was built with Inno Setup. |
| CompanyName: | Systweak Software |
| FileDescription: | Advanced System Optimizer |
| FileVersion: | 3.11.4111.18470 |
| LegalCopyright: | Copyright © 1999 - 2021 Systweak Software, All rights reserved. |
| ProductName: | Advanced System Optimizer |
| ProductVersion: | 3.11.4111.18470 |
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 8 |
| Time date stamp: | 06-Apr-2016 14:39:04 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x0000F244 | 0x0000F400 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.37521 |
.itext | 0x00011000 | 0x00000F64 | 0x00001000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.7322 |
.data | 0x00012000 | 0x00000C88 | 0x00000E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.29672 |
.bss | 0x00013000 | 0x000056BC | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x00019000 | 0x00000E04 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.59781 |
.tls | 0x0001A000 | 0x00000008 | 0x00000000 | IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.rdata | 0x0001B000 | 0x00000018 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 0.204488 |
.rsrc | 0x0001C000 | 0x0000B200 | 0x0000B200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.15053 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.13965 | 1580 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 3.47151 | 1384 | UNKNOWN | Dutch - Netherlands | RT_ICON |
3 | 3.91708 | 744 | UNKNOWN | Dutch - Netherlands | RT_ICON |
4 | 3.91366 | 2216 | UNKNOWN | Dutch - Netherlands | RT_ICON |
4091 | 2.56031 | 104 | UNKNOWN | UNKNOWN | RT_STRING |
4092 | 3.25287 | 212 | UNKNOWN | UNKNOWN | RT_STRING |
4093 | 3.26919 | 164 | UNKNOWN | UNKNOWN | RT_STRING |
4094 | 3.33268 | 684 | UNKNOWN | UNKNOWN | RT_STRING |
4095 | 3.34579 | 844 | UNKNOWN | UNKNOWN | RT_STRING |
4096 | 3.28057 | 660 | UNKNOWN | UNKNOWN | RT_STRING |
advapi32.dll |
comctl32.dll |
kernel32.dll |
oleaut32.dll |
user32.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 452 | "C:\Program Files\Advanced System Optimizer 3\PTBWin7.exe" /i"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Advanced System Optimizer 3\Start Advanced System Optimizer.lnk" | C:\Program Files\Advanced System Optimizer 3\PTBWin7.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Systweak Software Integrity Level: HIGH Description: PTBWin7.exe Exit code: 0 Version: 3.9.3645.18042 Modules
| |||||||||||||||
| 672 | "C:\Windows\system32\net.exe" stop ASO3DiskOptimizer /y | C:\Windows\system32\net.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 2 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 684 | "C:\Windows\System32\schtasks.exe" /delete /tn "advanced~system protector" /f | C:\Windows\System32\schtasks.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 780 | "C:\Windows\System32\schtasks.exe" /delete /tn "Advanced System Optimizer" /f | C:\Windows\System32\schtasks.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 872 | C:\Windows\system32\svchost.exe -k netsvcs | C:\Windows\system32\svchost.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1020 | "C:\Windows\System32\cscript.exe" //B //Nologo "C:\Users\admin\AppData\Local\Temp\\pin.vbs | C:\Windows\System32\cscript.exe | — | PTBWin7.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft ® Console Based Script Host Exit code: 0 Version: 5.8.7600.16385 Modules
| |||||||||||||||
| 1332 | C:\Windows\system32\net1 stop ASO3DiskOptimizer /y | C:\Windows\system32\net1.exe | — | net.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 2 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 1556 | "C:\Windows\system32\regsvr32.exe" /s "C:\Program Files\Advanced System Optimizer 3\SecureShell.dll" | C:\Windows\system32\regsvr32.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft(C) Register Server Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1660 | "C:\Windows\System32\schtasks.exe" /delete /tn "advanced-system protector" /f | C:\Windows\System32\schtasks.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Manages scheduled tasks Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1856 | "C:\Program Files\Internet Explorer\iexplore.exe" https://systweak.com/advanced-system-optimizer/after-install?&LangID=en&utm_source=systweaksite&utm_campaign=systweaksite&affiliateid=&x-cid=systweaksite&utm_content=AfterInstall&utm_term=Setup&page=install | C:\Program Files\Internet Explorer\iexplore.exe | — | aso3setup_systweaksite-systweaksite.tmp | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Internet Explorer Exit code: 0 Version: 11.00.9600.16428 (winblue_gdr.131013-1700) Modules
| |||||||||||||||
| (PID) Process: | (872) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-1302019708-1500728564-335382590-1000 |
| Operation: | write | Name: | RefCount |
Value: 2 | |||
| (PID) Process: | (872) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-1302019708-1500728564-335382590-1000 |
| Operation: | write | Name: | RefCount |
Value: 1 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Owner |
Value: A8090000AEF7E38EEB6CD801 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | SessionHash |
Value: 1F10E4FA0A209008CA8D27D8A2C4E63744B33C7661E764018F9CE95DD5824D16 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\RestartManager\Session0000 |
| Operation: | write | Name: | Sequence |
Value: 1 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2472) aso3setup_systweaksite-systweaksite.tmp | Key: | HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Memory Management |
| Operation: | write | Name: | ClearPageFileAtShutdown |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2540 | aso3setup_systweaksite-systweaksite.exe | C:\Users\admin\AppData\Local\Temp\is-LNTHF.tmp\aso3setup_systweaksite-systweaksite.tmp | executable | |
MD5:— | SHA256:— | |||
| 1972 | aso3setup_systweaksite-systweaksite.exe | C:\Users\admin\AppData\Local\Temp\is-N2ONM.tmp\aso3setup_systweaksite-systweaksite.tmp | executable | |
MD5:— | SHA256:— | |||
| 872 | svchost.exe | C:\Windows\appcompat\programs\RecentFileCache.bcf | txt | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Users\admin\AppData\Local\Temp\is-GDI84.tmp\aso3sys.dll | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Program Files\Advanced System Optimizer 3\unins000.exe | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Users\admin\AppData\Local\Temp\is-GDI84.tmp\KillASOProcesses.exe | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Users\admin\AppData\Local\Temp\is-GDI84.tmp\ASEng.dll | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Program Files\Advanced System Optimizer 3\is-6ET6K.tmp | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Users\admin\AppData\Local\Temp\is-GDI84.tmp\zlibwapi.dll | executable | |
MD5:— | SHA256:— | |||
| 2472 | aso3setup_systweaksite-systweaksite.tmp | C:\Users\admin\AppData\Local\Temp\is-GDI84.tmp\_isetup\_iscrypt.dll | executable | |
MD5:A69559718AB506675E907FE49DEB71E9 | SHA256:2F6294F9AA09F59A574B5DCD33BE54E16B39377984F3D5658CDA44950FA0F8FC | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3436 | iexplore.exe | GET | 200 | 172.64.155.188:80 | http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTNMNJMNDqCqx8FcBWK16EHdimS6QQUU3m%2FWqorSs9UgOHYm8Cd8rIDZssCEBN9U5yqfDGppDNwGWiEeo0%3D | US | der | 727 b | whitelisted |
— | — | GET | 200 | 172.64.155.188:80 | http://ocsp.comodoca.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRTtU9uFqgVGHhJwXZyWCNXmVR5ngQUoBEKIz6W8Qfs4q8p74Klf9AwpLQCEDlyRDr5IrdR19NsEN0xNZU%3D | US | der | 471 b | whitelisted |
— | — | GET | 200 | 142.250.186.131:80 | http://ocsp.pki.goog/gsr1/MFEwTzBNMEswSTAJBgUrDgMCGgUABBS3V7W2nAf4FiMTjpDJKg6%2BMgGqMQQUYHtmGkUNl8qJUC99BM00qP%2F8%2FUsCEHe9DWzbNvka6iEPxPBY0w0%3D | US | der | 1.41 Kb | whitelisted |
— | — | GET | 200 | 142.250.186.131:80 | http://ocsp.pki.goog/gts1c3/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEFsL8ccV6MRJElibH7RYju4%3D | US | der | 471 b | whitelisted |
— | — | GET | 200 | 142.250.186.131:80 | http://ocsp.pki.goog/gtsr1/ME4wTDBKMEgwRjAJBgUrDgMCGgUABBQwkcLWD4LqGJ7bE7B1XZsEbmfwUAQU5K8rJnEaK0gnhS9SZizv8IkTcT4CDQIDvFNZazTHGPUBUGY%3D | US | der | 724 b | whitelisted |
— | — | GET | 200 | 142.250.186.131:80 | http://ocsp.pki.goog/gts1c3/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEQCdUrA%2FwvrytArhIvu6cF3d | US | der | 472 b | whitelisted |
3436 | iexplore.exe | GET | 200 | 104.18.32.68:80 | http://ocsp.sectigo.com/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBQh80WaEMqmyEvaHjlisSfVM4p8SAQUF9nWJSdn%2BTHCSUPZMDZEjGypT%2BsCEQDHzFACwMXWp4pEfd2dS0j6 | US | der | 472 b | whitelisted |
— | — | GET | 200 | 142.250.186.131:80 | http://ocsp.pki.goog/gts1c3/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBTHLnmK3f9hNLO67UdCuLvGwCQHYwQUinR%2Fr4XN7pXNPZzQ4kYU83E1HScCEQDwQ9JNOs3IcArkp%2FBu7NbU | US | der | 472 b | whitelisted |
3436 | iexplore.exe | GET | 200 | 172.64.155.188:80 | http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTNMNJMNDqCqx8FcBWK16EHdimS6QQUU3m%2FWqorSs9UgOHYm8Cd8rIDZssCEH1bUSa0droR23QWC7xTDac%3D | US | der | 727 b | whitelisted |
3436 | iexplore.exe | GET | 200 | 172.64.155.188:80 | http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTNMNJMNDqCqx8FcBWK16EHdimS6QQUU3m%2FWqorSs9UgOHYm8Cd8rIDZssCEChOOcFLOG2InHKZ5YzQWlc%3D | US | der | 727 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3436 | iexplore.exe | 161.35.1.181:443 | systweak.com | — | US | malicious |
3436 | iexplore.exe | 91.199.212.52:80 | crt.sectigo.com | Comodo CA Ltd | GB | suspicious |
3436 | iexplore.exe | 23.216.77.69:80 | ctldl.windowsupdate.com | NTT DOCOMO, INC. | US | suspicious |
3436 | iexplore.exe | 104.18.32.68:80 | ocsp.usertrust.com | Cloudflare Inc | US | suspicious |
— | — | 161.35.1.181:443 | systweak.com | — | US | malicious |
3436 | iexplore.exe | 172.64.155.188:80 | ocsp.usertrust.com | — | US | suspicious |
— | — | 172.217.18.106:443 | fonts.googleapis.com | Google Inc. | US | whitelisted |
— | — | 178.79.242.159:443 | cdn.systweak.com | Limelight Networks, Inc. | DE | suspicious |
— | — | 142.250.185.72:443 | www.googletagmanager.com | Google Inc. | US | suspicious |
— | — | 142.250.185.164:443 | www.google.com | Google Inc. | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
systweak.com |
| malicious |
ctldl.windowsupdate.com |
| whitelisted |
crt.sectigo.com |
| whitelisted |
ocsp.usertrust.com |
| whitelisted |
ocsp.sectigo.com |
| whitelisted |
www.systweak.com |
| unknown |
fonts.googleapis.com |
| whitelisted |
www.googletagmanager.com |
| whitelisted |
cdn.systweak.com |
| suspicious |
b34df4ra1.vo.llnwd.net |
| malicious |
Process | Message |
|---|---|
ASO3.exe | %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s |
ASO3.exe | %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s |