| File name: | Firefox Installer.exe |
| Full analysis: | https://app.any.run/tasks/0eac477f-d0ce-41a8-a20d-83e9be6dce06 |
| Verdict: | Malicious activity |
| Analysis date: | December 12, 2021, 15:38:52 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed |
| MD5: | F8D3A6D497F2ED5FBCD039E66E6020D0 |
| SHA1: | FEB4BC47DA04217BDCA770F8D2C1CDA6B77BD510 |
| SHA256: | F8E39D208ABF4F2BF1E69AA03DF7DA3FE938172A887847530B190918550C59E5 |
| SSDEEP: | 6144:PaVWdyzOxeA1DfdwX3MmIOZgB3uV6nJuyCbeMU/+azaWpBl4:PMROxdDfOnMmXGO6pWeP/VBu |
| .exe | | | UPX compressed Win32 Executable (64.2) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.6) |
| .exe | | | Win32 Executable (generic) (10.6) |
| .exe | | | Generic Win/DOS Executable (4.7) |
| .exe | | | DOS Executable Generic (4.7) |
| ProductVersion: | 18.05 |
|---|---|
| ProductName: | Firefox |
| OriginalFileName: | 7zS.sfx.exe |
| LegalCopyright: | Mozilla |
| InternalName: | 7zS.sfx |
| FileVersion: | 18.05 |
| FileDescription: | Firefox |
| CompanyName: | Mozilla |
| CharacterSet: | Unicode |
| LanguageCode: | English (U.S.) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Windows NT 32-bit |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 18.5.0.0 |
| FileVersionNumber: | 18.5.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x34fa0 |
| UninitializedDataSize: | 147456 |
| InitializedDataSize: | 65536 |
| CodeSize: | 69632 |
| LinkerVersion: | 6 |
| PEType: | PE32 |
| TimeStamp: | 2018:08:31 00:18:33+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 30-Aug-2018 22:18:33 |
| Detected languages: |
|
| CompanyName: | Mozilla |
| FileDescription: | Firefox |
| FileVersion: | 18.05 |
| InternalName: | 7zS.sfx |
| LegalCopyright: | Mozilla |
| OriginalFilename: | 7zS.sfx.exe |
| ProductName: | Firefox |
| ProductVersion: | 18.05 |
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x000000F0 |
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 30-Aug-2018 22:18:33 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x00024000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x00025000 | 0x00011000 | 0x00010200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.87799 |
.rsrc | 0x00036000 | 0x00010000 | 0x0000FC00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.52725 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.38843 | 1365 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 5.52861 | 5160 | UNKNOWN | English - United States | RT_ICON |
3 | 5.45625 | 11560 | UNKNOWN | English - United States | RT_ICON |
4 | 7.98617 | 43467 | UNKNOWN | English - United States | RT_ICON |
5 | 6.34937 | 136 | UNKNOWN | English - United States | RT_STRING |
97 | 6.74142 | 184 | UNKNOWN | English - United States | RT_DIALOG |
188 | 6.07381 | 84 | UNKNOWN | English - United States | RT_STRING |
207 | 5.37823 | 52 | UNKNOWN | English - United States | RT_STRING |
KERNEL32.DLL |
MSVCRT.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 356 | "C:\Users\admin\AppData\Local\Temp\7zS0F805AD3\setup-stub.exe" /UAC:801A0 /NCRC | C:\Users\admin\AppData\Local\Temp\7zS0F805AD3\setup-stub.exe | setup-stub.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: HIGH Description: Firefox Installer Exit code: 0 Version: 95.0 Modules
| |||||||||||||||
| 668 | %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,12288,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16 | C:\Windows\system32\csrss.exe | — | — | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Client Server Runtime Process Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 1116 | "C:\Program Files\Mozilla Maintenance Service\maintenanceservice_tmp.exe" install | C:\Program Files\Mozilla Maintenance Service\maintenanceservice_tmp.exe | maintenanceservice_installer.exe | ||||||||||||
User: admin Company: Mozilla Foundation Integrity Level: HIGH Exit code: 0 Version: 95.0 Modules
| |||||||||||||||
| 1332 | "C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe" | C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe | ns9D0C.tmp | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: HIGH Description: Mozilla Maintenance Service Installer Exit code: 0 Version: 95.0 Modules
| |||||||||||||||
| 1508 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3604.0.696402607\144748396" -parentBuildID 20211129150630 -prefsHandle 1076 -prefMapHandle 1068 -prefsLen 1 -prefMapSize 236356 -appDir "C:\Program Files\Mozilla Firefox\browser" - 3604 "\\.\pipe\gecko-crash-server-pipe.3604" 1164 c37b248 gpu | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 95.0 Modules
| |||||||||||||||
| 1648 | "C:\Users\admin\AppData\Local\Temp\nsb97EA.tmp\ns9D0C.tmp" "C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe" | C:\Users\admin\AppData\Local\Temp\nsb97EA.tmp\ns9D0C.tmp | — | setup.exe | |||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2156 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3604.8.793722112\166314446" -childID 3 -isForBrowser -prefsHandle 3136 -prefMapHandle 3132 -prefsLen 2683 -prefMapSize 236356 -jsInitHandle 876 -jsInitLen 278884 -parentBuildID 20211129150630 -appDir "C:\Program Files\Mozilla Firefox\browser" - 3604 "\\.\pipe\gecko-crash-server-pipe.3604" 3148 e5a98e8 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Exit code: 0 Version: 95.0 | |||||||||||||||
| 2288 | "C:\Users\admin\AppData\Local\Temp\Firefox Installer.exe" | C:\Users\admin\AppData\Local\Temp\Firefox Installer.exe | Explorer.EXE | ||||||||||||
User: admin Company: Mozilla Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 18.05 Modules
| |||||||||||||||
| 2496 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3604.1.1106330239\1737189490" -childID 1 -isForBrowser -prefsHandle 2100 -prefMapHandle 2096 -prefsLen 2176 -prefMapSize 236356 -jsInitHandle 876 -jsInitLen 278884 -parentBuildID 20211129150630 -appDir "C:\Program Files\Mozilla Firefox\browser" - 3604 "\\.\pipe\gecko-crash-server-pipe.3604" 2112 e5b5108 tab | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Exit code: 0 Version: 95.0 Modules
| |||||||||||||||
| 2512 | "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3604.5.1687202330\1639656349" -parentBuildID 20211129150630 -prefsHandle 2568 -prefMapHandle 2564 -prefsLen 2408 -prefMapSize 236356 -appDir "C:\Program Files\Mozilla Firefox\browser" - 3604 "\\.\pipe\gecko-crash-server-pipe.3604" 2516 e5a4d38 rdd | C:\Program Files\Mozilla Firefox\firefox.exe | — | firefox.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Exit code: 0 Version: 95.0 | |||||||||||||||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla |
| Operation: | write | Name: | FirefoxInstallerTest |
Value: Write Test | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla |
| Operation: | delete value | Name: | FirefoxInstallerTest |
Value: Write Test | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\TaskBarIDs |
| Operation: | write | Name: | C:\Program Files\Mozilla Firefox |
Value: 308046B0AF4A39CB | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings |
| Operation: | write | Name: | ProxyEnable |
Value: 0 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections |
| Operation: | write | Name: | SavedLegacySettings |
Value: 460000003B010000090000000000000000000000000000000400000000000000C0E333BBEAB1D3010000000000000000000000000100000002000000C0A80164000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (356) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{362E934C-743B-4588-8259-D2482DB771A8} |
| Operation: | write | Name: | WpadDecisionReason |
Value: 1 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2288 | Firefox Installer.exe | C:\Users\admin\AppData\Local\Temp\7zS0F805AD3\postSigningData | text | |
MD5:— | SHA256:— | |||
| 2288 | Firefox Installer.exe | C:\Users\admin\AppData\Local\Temp\7zS0F805AD3\setup-stub.exe | executable | |
MD5:— | SHA256:— | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 | binary | |
MD5:— | SHA256:— | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_A30EA9B4E1BC5DBF09A8EF399E086D27 | binary | |
MD5:— | SHA256:— | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\2543B5AF7D46D42E6CEED21F85143F6A_B8DAADFB3E364EF880A472A88C68851C | der | |
MD5:— | SHA256:— | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\2543B5AF7D46D42E6CEED21F85143F6A_B8DAADFB3E364EF880A472A88C68851C | binary | |
MD5:— | SHA256:— | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_A30EA9B4E1BC5DBF09A8EF399E086D27 | der | |
MD5:— | SHA256:— | |||
| 2596 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nshE90C.tmp\UAC.dll | executable | |
MD5:113C5F02686D865BC9E8332350274FD1 | SHA256:0D21041A1B5CD9F9968FC1D457C78A802C9C5A23F375327E833501B65BCD095D | |||
| 356 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsyEB3F.tmp\UAC.dll | executable | |
MD5:113C5F02686D865BC9E8332350274FD1 | SHA256:0D21041A1B5CD9F9968FC1D457C78A802C9C5A23F375327E833501B65BCD095D | |||
| 2596 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nshE90C.tmp\System.dll | executable | |
MD5:6E55A6E7C3FDBD244042EB15CB1EC739 | SHA256:ACF90AB6F4EDC687E94AAF604D05E16E6CFB5E35873783B50C66F307A35C6506 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
356 | setup-stub.exe | GET | 200 | 34.120.208.123:80 | http://download-stats.mozilla.org/stub/v8/release/release/es-MX/0/0/6/1/7601/1/0/0/2/0/53510848/53510848/0/0/31/31/0/0/7/0/0/0/1/83.0/20201112153044/95.0/20211129150630/1/1/0/3/13.224.195.56/campaign%3D%2528not%2Bset%2529%26content%3D%2528not%2Bset%2529%26dltoken%3Dbe9a9708-237d-4a30-8956-34ef21fe466d%26experiment%3D%2528not%2Bset%2529%26medium%3Dreferral%26source%3Dwww.google.com%26ua%3Dchrome%26variation%3D%2528not%2Bset%2529/2/1 | US | — | — | whitelisted |
356 | setup-stub.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAo1CNVcKSsBffitZcAP9%2BQ%3D | US | der | 471 b | whitelisted |
356 | setup-stub.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAH9o%2BtuynXIiEOLckvPvJE%3D | US | der | 471 b | whitelisted |
356 | setup-stub.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTk45WiKdPUwcMf8JgMC07ACYqr2AQUt2ui6qiqhIx56rTaD5iyxZV2ufQCEAcYrhR%2FJfRhSTiTgxe5aaQ%3D | US | der | 471 b | whitelisted |
3604 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
3604 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
— | — | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
3604 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
— | — | POST | 200 | 2.16.186.9:80 | http://r3.o.lencr.org/ | unknown | der | 503 b | shared |
3604 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
356 | setup-stub.exe | 13.225.87.57:443 | product-details.mozilla.org | — | US | suspicious |
356 | setup-stub.exe | 23.32.238.232:80 | ctldl.windowsupdate.com | XO Communications | US | unknown |
356 | setup-stub.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
356 | setup-stub.exe | 3.92.110.183:443 | download.mozilla.org | — | US | unknown |
356 | setup-stub.exe | 13.224.195.56:443 | download-installer.cdn.mozilla.net | — | US | suspicious |
356 | setup-stub.exe | 34.120.208.123:80 | download-stats.mozilla.org | — | US | malicious |
3604 | firefox.exe | 13.224.189.85:443 | firefox.settings.services.mozilla.com | — | US | suspicious |
3604 | firefox.exe | 34.98.75.36:443 | classify-client.services.mozilla.com | — | US | suspicious |
3604 | firefox.exe | 13.224.189.16:443 | normandy.cdn.mozilla.net | — | US | suspicious |
3604 | firefox.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
product-details.mozilla.org |
| shared |
ctldl.windowsupdate.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
download.mozilla.org |
| whitelisted |
download-installer.cdn.mozilla.net |
| whitelisted |
download-stats.mozilla.org |
| whitelisted |
firefox.settings.services.mozilla.com |
| whitelisted |
normandy.cdn.mozilla.net |
| whitelisted |
normandy-cdn.services.mozilla.com |
| whitelisted |
classify-client.services.mozilla.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
3604 | firefox.exe | Potentially Bad Traffic | ET INFO Terse Request for .txt - Likely Hostile |