| File name: | SkypeMeetingsApp.msi |
| Full analysis: | https://app.any.run/tasks/f9b6d6b5-a857-49c3-a144-eb49705d7168 |
| Verdict: | Malicious activity |
| Analysis date: | May 15, 2025, 06:24:17 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-msi |
| File info: | Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.3, MSI Installer, Code page: 1252, Title: Installation Database, Subject: Skype Meetings App, Author: Microsoft Corporation, Keywords: Installer, Comments: This installer database contains the logic and data required to install Skype Meetings App., Template: Intel;0, Revision Number: {C6C0F413-901C-42A8-A7F1-D03BD40F9B12}, Create Time/Date: Sat Aug 3 05:00:26 2019, Last Saved Time/Date: Sat Aug 3 05:00:26 2019, Number of Pages: 300, Number of Words: 10, Name of Creating Application: Windows Installer XML Toolset (3.11.1.2318), Security: 2 |
| MD5: | 2401C281F6798633B66B2A4A14937354 |
| SHA1: | 632C80EA6699C5A6A4D6247182DAA92A3BF60913 |
| SHA256: | 73FDFB85B80B81C87E78580DC5B46A73C73F7907F8E6CFF0886DCB6493365255 |
| SSDEEP: | 98304:MpJSNn/rIB9Kr4BQhhTXvKEXV7RXIgk0vL6mKT9nX3DA4nFkgxJotrWP8yX8AshY:LozTkVfJFyXUgT/DmhGRRvP |
MALICIOUS
No malicious indicators.SUSPICIOUS
Process drops legitimate windows executable
- msiexec.exe (PID: 7232)
- msiexec.exe (PID: 7412)
Reads the Windows owner or organization settings
- msiexec.exe (PID: 7412)
The process creates files with name similar to system file names
- msiexec.exe (PID: 7412)
The process drops C-runtime libraries
- msiexec.exe (PID: 7412)
Reads security settings of Internet Explorer
- msiexec.exe (PID: 7544)
- Skype Meetings App.exe (PID: 1272)
Creates/Modifies COM task schedule object
- msiexec.exe (PID: 7412)
INFO
The sample compiled with english language support
- msiexec.exe (PID: 7232)
- msiexec.exe (PID: 7412)
Reads security settings of Internet Explorer
- msiexec.exe (PID: 7232)
Reads the software policy settings
- msiexec.exe (PID: 7232)
- msiexec.exe (PID: 7412)
- Skype Meetings App.exe (PID: 1272)
- slui.exe (PID: 6656)
Checks proxy server information
- msiexec.exe (PID: 7232)
- Skype Meetings App.exe (PID: 1272)
- slui.exe (PID: 6656)
Reads the computer name
- msiexec.exe (PID: 7412)
- msiexec.exe (PID: 7544)
- Skype Meetings App.exe (PID: 1272)
Creates files or folders in the user directory
- msiexec.exe (PID: 7232)
- msiexec.exe (PID: 7412)
- Skype Meetings App.exe (PID: 1272)
Reads the machine GUID from the registry
- msiexec.exe (PID: 7412)
- Skype Meetings App.exe (PID: 1272)
Checks supported languages
- msiexec.exe (PID: 7544)
- msiexec.exe (PID: 7412)
- Skype Meetings App.exe (PID: 1272)
Executable content was dropped or overwritten
- msiexec.exe (PID: 7412)
Manual execution by a user
- firefox.exe (PID: 7652)
Application launched itself
- firefox.exe (PID: 7652)
- firefox.exe (PID: 7672)
Create files in a temporary directory
- Skype Meetings App.exe (PID: 1272)
Creates a software uninstall entry
- msiexec.exe (PID: 7412)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .msi | | | Microsoft Windows Installer (98.5) |
|---|---|---|
| .msi | | | Microsoft Installer (100) |
EXIF
FlashPix
| CodePage: | Windows Latin 1 (Western European) |
|---|---|
| Title: | Installation Database |
| Subject: | Skype Meetings App |
| Author: | Microsoft Corporation |
| Keywords: | Installer |
| Comments: | This installer database contains the logic and data required to install Skype Meetings App. |
| Template: | Intel;0 |
| RevisionNumber: | {C6C0F413-901C-42A8-A7F1-D03BD40F9B12} |
| CreateDate: | 2019:08:03 05:00:26 |
| ModifyDate: | 2019:08:03 05:00:26 |
| Pages: | 300 |
| Words: | 10 |
| Software: | Windows Installer XML Toolset (3.11.1.2318) |
| Security: | Read-only recommended |
Total processes
149
Monitored processes
16
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1072 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2728 -childID 1 -isForBrowser -prefsHandle 2780 -prefMapHandle 2976 -prefsLen 31447 -prefMapSize 244583 -jsInitHandle 1536 -jsInitLen 235124 -parentBuildID 20240213221259 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {4269e55c-d6fb-442f-bc26-64ceaf6b7994} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 1616e1f4f50 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
| 1272 | "C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\Skype Meetings App.exe" -autostart | C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\Skype Meetings App.exe | msiexec.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Skype Meetings App Exit code: 0 Version: 16.2.0.511 Modules
| |||||||||||||||
| 5376 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4388 -parentBuildID 20240213221259 -sandboxingKind 0 -prefsHandle 4820 -prefMapHandle 4816 -prefsLen 36588 -prefMapSize 244583 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {d278c8f1-0511-4586-ba09-b9f3fc9fbe75} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 1617174a910 utility | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
| 5960 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2084 -childID 3 -isForBrowser -prefsHandle 4836 -prefMapHandle 4824 -prefsLen 31144 -prefMapSize 244583 -jsInitHandle 1536 -jsInitLen 235124 -parentBuildID 20240213221259 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {bc995979-6d1f-41dd-9ec7-3846dedd6e05} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 16171463f50 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
| 6068 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4340 -childID 2 -isForBrowser -prefsHandle 4332 -prefMapHandle 4328 -prefsLen 36588 -prefMapSize 244583 -jsInitHandle 1536 -jsInitLen 235124 -parentBuildID 20240213221259 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {ee0b01ac-474b-4110-95e8-1359b9c5621e} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 1616fb7ad90 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
| 6656 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7232 | "C:\Windows\System32\msiexec.exe" /i C:\Users\admin\Desktop\SkypeMeetingsApp.msi | C:\Windows\System32\msiexec.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows® installer Exit code: 0 Version: 5.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7380 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4736 -childID 4 -isForBrowser -prefsHandle 4804 -prefMapHandle 4800 -prefsLen 31144 -prefMapSize 244583 -jsInitHandle 1536 -jsInitLen 235124 -parentBuildID 20240213221259 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {289dab9c-452b-425e-90d4-34390c352138} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 16171463850 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
| 7412 | C:\WINDOWS\system32\msiexec.exe /V | C:\Windows\System32\msiexec.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows® installer Version: 5.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7444 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5104 -childID 5 -isForBrowser -prefsHandle 4908 -prefMapHandle 5016 -prefsLen 31144 -prefMapSize 244583 -jsInitHandle 1536 -jsInitLen 235124 -parentBuildID 20240213221259 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {da68a42e-8510-402b-86a4-3ed7ea5f3dd6} 7672 "\\.\pipe\gecko-crash-server-pipe.7672" 16172779f50 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Version: 123.0 Modules
| |||||||||||||||
Total events
22 348
Read events
22 077
Write events
266
Delete events
5
Modification events
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Folders |
| Operation: | write | Name: | C:\Config.Msi\ |
Value: | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts |
| Operation: | write | Name: | C:\Config.Msi\10b7ea.rbs |
Value: 31180130 | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts |
| Operation: | write | Name: | C:\Config.Msi\10b7ea.rbsLow |
Value: 60641520 | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\Folders |
| Operation: | write | Name: | C:\Users\admin\AppData\Roaming\Microsoft\Installer\ |
Value: | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\09DAC598233E9F74CBBD77620BB2AE5D |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\ | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\B292FA1EE979F09449473FE50BE44675 |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\PluginHost.exe | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\B9CC14FF144022F4283B53686131CEE9 |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\GatewayActiveX.dll | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\D09D297D2C5539849AD357A3E3596DF3 |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\GatewayActiveX-x64.dll | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\F09215C668571414F95D3FBFA3F9E570 |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\npGatewayNpapi.dll | |||
| (PID) Process: | (7412) msiexec.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-21-1693682860-607145093-2874071422-1001\Components\051DE9DE7C7E85D4FB2C88844E217E96 |
| Operation: | write | Name: | 74E9D1CB72981AA48A197736CB42577B |
Value: C:\Users\admin\AppData\Local\Microsoft\SkypeForBusinessPlugin\16.2.0.511\appshvw.dll | |||
Executable files
51
Suspicious files
250
Text files
29
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7412 | msiexec.exe | C:\Windows\Installer\10b7e8.msi | — | |
MD5:— | SHA256:— | |||
| 7232 | msiexec.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C0018BB1B5834735BFA60CD063B31956 | binary | |
MD5:9B2509CFF42DFCEC25276BCC225CC4A4 | SHA256:7335A1BD971D1CAF943246E1705CE2D10F83FE6A34438128D2C0CF3738FEE8AB | |||
| 7232 | msiexec.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE | binary | |
MD5:0F7B8F6A846AA9CA52FA562DDDCDB5ED | SHA256:AFF90E65A81289B80D1FCC5E71B3D88E5D1AAFE22CE358EB6E28A56D1845263D | |||
| 7412 | msiexec.exe | C:\Windows\Installer\MSIBBC3.tmp | executable | |
MD5:E4ADC08E8BB63B84431B1E914E05D53D | SHA256:280C1AC6326078393A389F122A5EED88C1A29E33E787A2CC0BC9BEB04F43E90F | |||
| 7412 | msiexec.exe | C:\Windows\Installer\MSIBCB0.tmp | executable | |
MD5:D773D9BD091E712DF7560F576DA53DE8 | SHA256:E0DB1804CF53ED4819ED70CB35C67680CE1A77573EFDED86E6DAC81010CE55E7 | |||
| 7412 | msiexec.exe | C:\Windows\Installer\MSIBDCA.tmp | executable | |
MD5:D773D9BD091E712DF7560F576DA53DE8 | SHA256:E0DB1804CF53ED4819ED70CB35C67680CE1A77573EFDED86E6DAC81010CE55E7 | |||
| 7232 | msiexec.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE | binary | |
MD5:B3743601D7E7E1B365A4D877ECA181DE | SHA256:B1D66BD4CDB75B2EB9EC5CD2AFCC82840587179BF6F022B6C93F9EB90C0B1DBD | |||
| 7232 | msiexec.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C0018BB1B5834735BFA60CD063B31956 | binary | |
MD5:126B5A0000BC7A05F38769EA41064409 | SHA256:D5A3DE18695928F9BDB65F0F939BBEDDC4330112F34C65DE5C060E8F9F9FF1E7 | |||
| 7412 | msiexec.exe | C:\Windows\Installer\MSIB9AD.tmp | executable | |
MD5:E4ADC08E8BB63B84431B1E914E05D53D | SHA256:280C1AC6326078393A389F122A5EED88C1A29E33E787A2CC0BC9BEB04F43E90F | |||
| 7412 | msiexec.exe | C:\Windows\Installer\MSIBA3B.tmp | executable | |
MD5:E4ADC08E8BB63B84431B1E914E05D53D | SHA256:280C1AC6326078393A389F122A5EED88C1A29E33E787A2CC0BC9BEB04F43E90F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
36
TCP/UDP connections
95
DNS requests
127
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2104 | svchost.exe | GET | 200 | 2.19.11.105:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
7232 | msiexec.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl | unknown | — | — | whitelisted |
7232 | msiexec.exe | GET | 200 | 2.19.11.105:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
2104 | svchost.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
7672 | firefox.exe | GET | 200 | 34.107.221.82:80 | http://detectportal.firefox.com/success.txt?ipv4 | unknown | — | — | whitelisted |
7672 | firefox.exe | GET | 200 | 34.107.221.82:80 | http://detectportal.firefox.com/canonical.html | unknown | — | — | whitelisted |
7672 | firefox.exe | POST | 200 | 184.24.77.48:80 | http://r11.o.lencr.org/ | unknown | — | — | whitelisted |
7672 | firefox.exe | POST | 200 | 172.217.16.195:80 | http://o.pki.goog/s/wr3/FIY | unknown | — | — | whitelisted |
7672 | firefox.exe | POST | 200 | 184.24.77.48:80 | http://r11.o.lencr.org/ | unknown | — | — | whitelisted |
7672 | firefox.exe | POST | 200 | 184.24.77.48:80 | http://r11.o.lencr.org/ | 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 |
|---|---|---|---|---|---|---|
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
2104 | svchost.exe | 2.19.11.105:80 | crl.microsoft.com | Elisa Oyj | NL | whitelisted |
2104 | svchost.exe | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
7232 | msiexec.exe | 2.19.11.105:80 | crl.microsoft.com | Elisa Oyj | NL | whitelisted |
7232 | msiexec.exe | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
2104 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
7672 | firefox.exe | 34.107.221.82:80 | detectportal.firefox.com | GOOGLE | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
meet.skype.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
detectportal.firefox.com |
| whitelisted |
prod.detectportal.prod.cloudops.mozgcp.net |
| whitelisted |
example.org |
| whitelisted |
ipv4only.arpa |
| whitelisted |