File name:

utau0419cInstaller.exe

Full analysis: https://app.any.run/tasks/9f567c2a-ef73-4a31-8d1c-3974b326350a
Verdict: Malicious activity
Analysis date: March 07, 2025, 21:10:23
OS: Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, MS CAB-Installer self-extracting archive, 3 sections
MD5:

B3FBD653A84017E567D7CFC7C9D14456

SHA1:

A39E627F0D243B21B7F14764F99F8898B2C13F5B

SHA256:

144B853BD7066A736EF8347118CF82C18B7A5BE313F7EDF66571E5D9816828AD

SSDEEP:

98304:NWJHHJ2g4xL/oU2GjYxXfD0Z8mV0C0FW4+VUjsIxHv6Z6XcQnJptnnwwjXaPpUdG:8N2CbSg02

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Changes the autorun value in the registry

      • utau0419cInstaller.exe (PID: 7328)
  • SUSPICIOUS

    • Starts a Microsoft application from unusual location

      • utau0419cInstaller.exe (PID: 7328)
      • utau0419cInstaller.exe (PID: 7260)
    • Reads the Windows owner or organization settings

      • setup.exe (PID: 7396)
    • Process drops legitimate windows executable

      • utau0419cInstaller.exe (PID: 7328)
      • msiexec.exe (PID: 7492)
    • Executable content was dropped or overwritten

      • utau0419cInstaller.exe (PID: 7328)
    • Executes as Windows Service

      • VSSVC.exe (PID: 5544)
    • Start notepad (likely ransomware note)

      • utau.exe (PID: 7472)
  • INFO

    • Reads the computer name

      • setup.exe (PID: 7396)
      • utau0419cInstaller.exe (PID: 7328)
      • msiexec.exe (PID: 7492)
    • The sample compiled with english language support

      • utau0419cInstaller.exe (PID: 7328)
      • msiexec.exe (PID: 7492)
    • Create files in a temporary directory

      • utau0419cInstaller.exe (PID: 7328)
      • setup.exe (PID: 7396)
    • Checks supported languages

      • utau0419cInstaller.exe (PID: 7328)
      • setup.exe (PID: 7396)
      • msiexec.exe (PID: 7492)
    • The sample compiled with japanese language support

      • utau0419cInstaller.exe (PID: 7328)
      • msiexec.exe (PID: 7492)
    • Checks proxy server information

      • BackgroundTransferHost.exe (PID: 5936)
    • Creates files or folders in the user directory

      • BackgroundTransferHost.exe (PID: 5936)
    • Reads the software policy settings

      • BackgroundTransferHost.exe (PID: 5936)
    • Reads security settings of Internet Explorer

      • BackgroundTransferHost.exe (PID: 5936)
    • Manages system restore points

      • SrTasks.exe (PID: 7592)
    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 7492)
    • Manual execution by a user

      • utau.exe (PID: 7472)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 1999:09:25 11:18:31+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit, No debug
PEType: PE32
LinkerVersion: 5.12
CodeSize: 34304
InitializedDataSize: 6825472
UninitializedDataSize: -
EntryPoint: 0x283d
OSVersion: 5
ImageVersion: 5
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 5.0.2920.0
ProductVersionNumber: 5.0.2920.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Japanese
CharacterSet: Unicode
CompanyName: Microsoft Corporation
FileDescription: Win32 キャビネット自己展開ツール
FileVersion: 5.00.2920.0000
InternalName: Wextract
LegalCopyright: Copyright (C) Microsoft Corp. 1981-1999
OriginalFileName: WEXTRACT.EXE
ProductName: Microsoft(R) Windows (R) 2000 Operating System
ProductVersion: 5.00.2920.0000
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
158
Monitored processes
19
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start utau0419cinstaller.exe setup.exe no specs msiexec.exe sppextcomobj.exe no specs slui.exe no specs backgroundtransferhost.exe no specs backgroundtransferhost.exe backgroundtransferhost.exe no specs backgroundtransferhost.exe no specs vssvc.exe no specs backgroundtransferhost.exe no specs srtasks.exe no specs conhost.exe no specs msiexec.exe no specs msiexec.exe no specs msiexec.exe no specs utau.exe no specs notepad.exe no specs utau0419cinstaller.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
208"C:\Windows\syswow64\MsiExec.exe" /Y "C:\WINDOWS\SysWOW64\COMDLG32.OCX"C:\Windows\SysWOW64\msiexec.exemsiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows® installer
Exit code:
0
Version:
5.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\msiexec.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\aclayers.dll
672"C:\Windows\syswow64\MsiExec.exe" /Y "C:\WINDOWS\SysWOW64\msinet.ocx"C:\Windows\SysWOW64\msiexec.exemsiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows® installer
Exit code:
0
Version:
5.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\msiexec.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\aclayers.dll
3784"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1C:\Windows\System32\BackgroundTransferHost.exesvchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Download/Upload Host
Exit code:
1
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\backgroundtransferhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\bcryptprimitives.dll
4920"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1C:\Windows\System32\BackgroundTransferHost.exesvchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Download/Upload Host
Exit code:
1
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\backgroundtransferhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\bcryptprimitives.dll
5544C:\WINDOWS\system32\vssvc.exeC:\Windows\System32\VSSVC.exeservices.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Microsoft® Volume Shadow Copy Service
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\vssvc.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
5936"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1C:\Windows\System32\BackgroundTransferHost.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Download/Upload Host
Exit code:
1
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\backgroundtransferhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\bcryptprimitives.dll
7176"C:\Windows\syswow64\MsiExec.exe" /Y "C:\WINDOWS\SysWOW64\MSCOMCTL.OCX"C:\Windows\SysWOW64\msiexec.exemsiexec.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows® installer
Exit code:
0
Version:
5.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\syswow64\msiexec.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\aclayers.dll
7200"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1C:\Windows\System32\BackgroundTransferHost.exesvchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Download/Upload Host
Exit code:
1
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\backgroundtransferhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\kernel.appcore.dll
c:\windows\system32\bcryptprimitives.dll
7260"C:\Users\admin\Desktop\utau0419cInstaller.exe" C:\Users\admin\Desktop\utau0419cInstaller.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Win32 キャビネット自己展開ツール
Exit code:
3221226540
Version:
5.00.2920.0000
Modules
Images
c:\users\admin\desktop\utau0419cinstaller.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
7328"C:\Users\admin\Desktop\utau0419cInstaller.exe" C:\Users\admin\Desktop\utau0419cInstaller.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Win32 キャビネット自己展開ツール
Exit code:
0
Version:
5.00.2920.0000
Modules
Images
c:\users\admin\desktop\utau0419cinstaller.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\acgenral.dll
Total events
9 955
Read events
9 054
Write events
813
Delete events
88

Modification events

(PID) Process:(7328) utau0419cInstaller.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:wextract_cleanup0
Value:
rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\admin\AppData\Local\Temp\IXP000.TMP\"
(PID) Process:(7396) setup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{618736E0-3C3D-11CF-810C-00AA00389B71}\TypeLib
Operation:writeName:Version
Value:
1.1
(PID) Process:(7396) setup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{618736E0-3C3D-11CF-810C-00AA00389B71}\TypeLib
Operation:writeName:Version
Value:
1.1
(PID) Process:(7396) setup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Volatile\00\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{03022430-ABC4-11D0-BDE2-00AA001A1953}\TypeLib
Operation:writeName:Version
Value:
1.1
(PID) Process:(7396) setup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Volatile\00\MACHINE\SOFTWARE\Classes\Interface\{03022430-ABC4-11D0-BDE2-00AA001A1953}\TypeLib
Operation:writeName:Version
Value:
1.1
(PID) Process:(7200) BackgroundTransferHost.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(7200) BackgroundTransferHost.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(7200) BackgroundTransferHost.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(3784) BackgroundTransferHost.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(3784) BackgroundTransferHost.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
Executable files
22
Suspicious files
309
Text files
39
Unknown types
0

Dropped files

PID
Process
Filename
Type
7328utau0419cInstaller.exeC:\Users\admin\AppData\Local\Temp\IXP000.TMP\utaustup.msi
MD5:
SHA256:
5936BackgroundTransferHost.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\AC\BackgroundTransferApi\d8a51b0a-6138-423e-895c-768397a8720e.down_data
MD5:
SHA256:
7492msiexec.exeC:\System Volume Information\SPP\metadata-2
MD5:
SHA256:
7492msiexec.exeC:\Windows\Installer\1122d7.msi
MD5:
SHA256:
7328utau0419cInstaller.exeC:\Users\admin\AppData\Local\Temp\IXP000.TMP\setup.exeexecutable
MD5:D60900A7B0FFF3BD9F109B3CC00F7804
SHA256:8F1B93D05B2CD046F87F10ED5C11430BDE70439CAF34DC6BB81B12AE2D25EB9F
7492msiexec.exeC:\System Volume Information\SPP\OnlineMetadataCache\{35e84fcb-b237-4677-89c2-469c04a7762f}_OnDiskSnapshotPropbinary
MD5:78A369829BA010B7070E74C42C3AF68E
SHA256:2806D112CA786A401B5275EF66D72EFFEC78436ECAD4B0A534FBC892A60C790E
5936BackgroundTransferHost.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\AC\BackgroundTransferApi\07961db7-25ce-4fd0-a44d-c15aa289bea5.7796483d-092d-4bd1-8284-5c253cc379cf.down_metabinary
MD5:91934B47D225048A461FA9007477EC6F
SHA256:F5C876E594F32E54319AFC51B5F2387A5FCF0B88A9493781FC8EAA236510D7B5
7492msiexec.exeC:\Windows\Temp\~DFF40AB847B6476ED5.TMPbinary
MD5:BF619EAC0CDF3F68D496EA9344137E8B
SHA256:076A27C79E5ACE2A3D47F9DD2E83E4FF6EA8872B3C2218F66C92B89B55F36560
7492msiexec.exeC:\Windows\Temp\~DF99025F8DDC13930D.TMPbinary
MD5:B329ED52DD0BFBEC026CB0C048AC60B3
SHA256:4DE8890C216BB723D128DB403F6FF3A4DA1BF6048FDBC9A3FBA3F12C36090955
7492msiexec.exeC:\Program Files (x86)\UTAU\voice\uta\つぃ_wav.frqbinary
MD5:63ED3D88562CF89C9E58B664883B47D7
SHA256:08B6FD3D61742BF10C48C2D2F1CBAD278069EDD942737ECD262E6FE0DBB6ADEC
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
34
DNS requests
14
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
6544
svchost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
7576
backgroundTaskHost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D
unknown
whitelisted
5936
BackgroundTransferHost.exe
GET
200
184.30.131.245:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
5360
SIHClient.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
5360
SIHClient.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
whitelisted
20.73.194.208:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4
System
192.168.100.255:138
whitelisted
3216
svchost.exe
40.113.103.199:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
6544
svchost.exe
20.190.159.73:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
6544
svchost.exe
184.30.131.245:80
ocsp.digicert.com
AKAMAI-AS
US
whitelisted
7576
backgroundTaskHost.exe
20.199.58.43:443
arc.msn.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
7576
backgroundTaskHost.exe
184.30.131.245:80
ocsp.digicert.com
AKAMAI-AS
US
whitelisted
2104
svchost.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5936
BackgroundTransferHost.exe
184.86.251.21:443
www.bing.com
Akamai International B.V.
DE
whitelisted

DNS requests

Domain
IP
Reputation
google.com
  • 142.250.185.110
whitelisted
settings-win.data.microsoft.com
  • 20.73.194.208
  • 51.104.136.2
whitelisted
client.wns.windows.com
  • 40.113.103.199
whitelisted
login.live.com
  • 20.190.159.73
  • 20.190.159.131
  • 40.126.31.3
  • 20.190.159.68
  • 40.126.31.130
  • 40.126.31.2
  • 20.190.159.4
  • 40.126.31.67
whitelisted
ocsp.digicert.com
  • 184.30.131.245
whitelisted
arc.msn.com
  • 20.199.58.43
whitelisted
www.bing.com
  • 184.86.251.21
  • 184.86.251.24
  • 184.86.251.20
  • 184.86.251.9
  • 184.86.251.13
  • 184.86.251.27
  • 184.86.251.19
  • 184.86.251.4
whitelisted
go.microsoft.com
  • 2.19.106.8
whitelisted
slscr.update.microsoft.com
  • 4.245.163.56
whitelisted
www.microsoft.com
  • 95.101.149.131
whitelisted

Threats

No threats detected
No debug info