| File name: | Pffbrowser.exe |
| Full analysis: | https://app.any.run/tasks/0f741662-4dac-4c3e-91b5-aeced313d96c |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | October 16, 2024, 16:49:06 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 82A5FA948EDDFEF0E5A3EC617949D4F5 |
| SHA1: | 3FC6B3F78BE1EE5B3732532165D155C4FE1F6E09 |
| SHA256: | 52B79A8BDB5D8046821FE94986EDC40E76D096CFCA67D7B9B16846A43DBFBC7C |
| SSDEEP: | 98304:0UlChWmTjoZ3yAbYh8359SRgiE+45FT4uK3SRvzBQkpN+j17VHxUB/LfHZd0mzUv:KCZi8sx |
MALICIOUS
Actions looks like stealing of personal data
- Pffbrowser.exe (PID: 6304)
SUSPICIOUS
Reads security settings of Internet Explorer
- Pffbrowser.exe (PID: 6304)
The process executes via Task Scheduler
- default-browser-agent.exe (PID: 5580)
Loads DLL from Mozilla Firefox
- default-browser-agent.exe (PID: 5580)
There is functionality for taking screenshot (YARA)
- Pffbrowser.exe (PID: 6304)
There is functionality for communication over UDP network (YARA)
- Pffbrowser.exe (PID: 6304)
Checks Windows Trust Settings
- Pffbrowser.exe (PID: 6304)
INFO
Reads the machine GUID from the registry
- Pffbrowser.exe (PID: 6304)
Reads the computer name
- Pffbrowser.exe (PID: 6304)
Creates files in the program directory
- Pffbrowser.exe (PID: 6304)
Checks supported languages
- Pffbrowser.exe (PID: 6304)
- default-browser-agent.exe (PID: 5580)
Create files in a temporary directory
- Pffbrowser.exe (PID: 6304)
Application launched itself
- firefox.exe (PID: 6216)
Checks proxy server information
- Pffbrowser.exe (PID: 6304)
- slui.exe (PID: 6240)
Reads the software policy settings
- Pffbrowser.exe (PID: 6304)
- slui.exe (PID: 6240)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (39.3) |
|---|---|---|
| .exe | | | Win32 EXE PECompact compressed (generic) (38) |
| .exe | | | Win32 Executable Delphi generic (12.9) |
| .exe | | | Win32 Executable (generic) (4.1) |
| .exe | | | Win16/32 Executable Delphi generic (1.8) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 1992:06:19 22:22:17+00:00 |
| ImageFileCharacteristics: | Executable, No line numbers, No symbols, Large address aware, Bytes reversed lo, 32-bit, Removable run from swap, Net run from swap, Bytes reversed hi |
| PEType: | PE32 |
| LinkerVersion: | 2.25 |
| CodeSize: | 6466560 |
| InitializedDataSize: | 2467328 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x6286d8 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 5.4.0.3970 |
| ProductVersionNumber: | 5.4.0.3970 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows 16-bit |
| ObjectFileType: | Dynamic link library |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| CompanyName: | OpenSight Software, LLC |
| FileDescription: | FlashFXP |
| FileVersion: | 5.4.0.3970 |
| InternalName: | FlashFXP.exe |
| LegalCopyright: | Copyright© 1998-2017 OpenSight Software, LLC |
| OriginalFileName: | FlashFXP.exe |
| ProductName: | FlashFXP |
| ProductVersion: | 5.4.0.3970 |
| Comments: | http://www.flashfxp.com |
Total processes
127
Monitored processes
5
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4208 | "C:\Program Files\Mozilla Firefox\firefox.exe" --backgroundtask defaultagent do-task 308046B0AF4A39CB | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 3 Version: 123.0 Modules
| |||||||||||||||
| 5580 | "C:\Program Files\Mozilla Firefox\default-browser-agent.exe" do-task "308046B0AF4A39CB" | C:\Program Files\Mozilla Firefox\default-browser-agent.exe | — | svchost.exe | |||||||||||
User: admin Company: Mozilla Foundation Integrity Level: MEDIUM Exit code: 2147500037 Version: 123.0 Modules
| |||||||||||||||
| 6216 | "C:\Program Files\Mozilla Firefox\firefox.exe" --backgroundtask defaultagent do-task 308046B0AF4A39CB | C:\Program Files\Mozilla Firefox\firefox.exe | — | default-browser-agent.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 3 Version: 123.0 Modules
| |||||||||||||||
| 6240 | 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
| |||||||||||||||
| 6304 | "C:\Users\admin\AppData\Local\Temp\Pffbrowser.exe" | C:\Users\admin\AppData\Local\Temp\Pffbrowser.exe | explorer.exe | ||||||||||||
User: admin Company: OpenSight Software, LLC Integrity Level: MEDIUM Description: FlashFXP Exit code: 0 Version: 5.4.0.3970 Modules
| |||||||||||||||
Total events
3 572
Read events
3 564
Write events
8
Delete events
0
Modification events
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer |
| Operation: | write | Name: | GlobalAssocChangedCounter |
Value: 96 | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\FlashFXP\5 |
| Operation: | write | Name: | locale |
Value: english | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\FlashFXP\5 |
| Operation: | write | Name: | CSID |
Value: 31E2601D-A86B-49C7-801E-6534ACB325F2 | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\FlashFXP\5 |
| Operation: | write | Name: | ControlSet |
Value: fKx{NUX2NPUmBhBGVRFg | |||
| (PID) Process: | (4208) firefox.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Mozilla\Firefox\DllPrefetchExperiment |
| Operation: | write | Name: | C:\Program Files\Mozilla Firefox\firefox.exe |
Value: 0 | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (6304) Pffbrowser.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
Executable files
2
Suspicious files
5
Text files
9
Unknown types
4
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4208 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\datareporting\glean\db\data.safe.tmp | dbf | |
MD5:B1C8AA9861B461806C9E738511EDD6AE | SHA256:7CEA48E7ADD3340B36F47BA4EA2DED8D6CB0423FFC2A64B44D7E86E0507D6B70 | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\Local\Temp\FlashFXP.ini | ini | |
MD5:9E6D88EADBE71AF34DD7DB2D29FDAAED | SHA256:CC0C737181377A8A11DFFAE471490634BA653AC188D4B3BA8ED22C1B793EE1A9 | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\Local\Temp\FlashFXP.key | binary | |
MD5:87A870A2BE5CD82C9940B6F1165AF2E2 | SHA256:6499894A7926D701687E43AA7905F31F7A80F3E7D85A26B33C997D8F3BD8C289 | |||
| 4208 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs.js | text | |
MD5:7FCE83ECE3AAEAB891BC06A7E002CF5F | SHA256:2C06B3803CC908A5D54716EE61A1C1566F8D18AC23320A04692B0E8662CF8310 | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\Local\Temp\Skiplist.dat | text | |
MD5:617700989CC83CA0C79718ECE1341385 | SHA256:B905E30449CBD88B4242650AFD7CABF718555E46BE02D810F01AA69FA59615D8 | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\Local\Temp\FlashFXP.ini.~tmp.6708 | ini | |
MD5:9E6D88EADBE71AF34DD7DB2D29FDAAED | SHA256:CC0C737181377A8A11DFFAE471490634BA653AC188D4B3BA8ED22C1B793EE1A9 | |||
| 4208 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs-1.js | text | |
MD5:7FCE83ECE3AAEAB891BC06A7E002CF5F | SHA256:2C06B3803CC908A5D54716EE61A1C1566F8D18AC23320A04692B0E8662CF8310 | |||
| 4208 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\datareporting\glean\db\data.safe.bin | dbf | |
MD5:B1C8AA9861B461806C9E738511EDD6AE | SHA256:7CEA48E7ADD3340B36F47BA4EA2DED8D6CB0423FFC2A64B44D7E86E0507D6B70 | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751 | binary | |
MD5:3DFCA46E00FFA4795C72A41375F159D3 | SHA256:DCBA1A505396539BAC40A7253C9F5DCCF06CBB79957E21D56305E1FC3AF5F40E | |||
| 6304 | Pffbrowser.exe | C:\Users\admin\AppData\Local\Temp\cert.dat | binary | |
MD5:21C4662888BCC8FC53A66F050A29AFAB | SHA256:950B46ED005F5BF51987BAC70B790AAC8DE7825F8A4B9BE663013F3090B56D6F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
62
DNS requests
25
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
4360 | SearchApp.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6944 | svchost.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6944 | svchost.exe | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.52.120.96:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5740 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.218.209.163:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.218.209.163:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6904 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
2936 | svchost.exe | GET | 304 | 2.23.197.184:80 | http://x1.c.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 |
|---|---|---|---|---|---|---|
— | — | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
6944 | svchost.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 104.126.37.145:443 | www.bing.com | Akamai International B.V. | DE | whitelisted |
4360 | SearchApp.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
— | — | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
6944 | svchost.exe | 23.52.120.96:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 23.52.120.96:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
— | — | 20.190.159.64:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
login.live.com |
| whitelisted |
th.bing.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |