| File name: | Firefox Installer.de.exe |
| Full analysis: | https://app.any.run/tasks/99b3fcfa-956e-4239-a5b5-b01fe9eea22a |
| Verdict: | Malicious activity |
| Analysis date: | February 10, 2019, 14:12:09 |
| 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: | BBDEF37D2B1E8ACBC106084850E7499E |
| SHA1: | 0E81CAF6B53E719908D48B62CCD468D7E855705D |
| SHA256: | 71B6B29E3EDBA20AB333BA77F2846890674C7A1B1705C3384A2936FBE6CCE8CC |
| SSDEEP: | 6144:4mvr9RLcN0BvxoLjGRU4UUU3UUUD9rOAe1i/M1v/oyE6hl+S9/Re56RKVKdV17wl:4mr9RUsJGjqU4UUU3UUUZa7IMdTJ/Rcb |
MALICIOUS
Loads dropped or rewritten executable
- setup-stub.exe (PID: 3904)
- setup-stub.exe (PID: 3784)
- setup.exe (PID: 3224)
- maintenanceservice_installer.exe (PID: 3040)
- csrss.exe (PID: 400)
- firefox.exe (PID: 2324)
- firefox.exe (PID: 2300)
- firefox.exe (PID: 3280)
- firefox.exe (PID: 1420)
- firefox.exe (PID: 2408)
- firefox.exe (PID: 3512)
- firefox.exe (PID: 2992)
- firefox.exe (PID: 3436)
Application was dropped or rewritten from another process
- setup-stub.exe (PID: 3904)
- setup-stub.exe (PID: 3784)
- setup.exe (PID: 3224)
- maintenanceservice.exe (PID: 2120)
- nsF5A3.tmp (PID: 2332)
- firefox.exe (PID: 2300)
- firefox.exe (PID: 2324)
- firefox.exe (PID: 3280)
- firefox.exe (PID: 1420)
- firefox.exe (PID: 2408)
- maintenanceservice_installer.exe (PID: 3040)
- firefox.exe (PID: 3512)
- firefox.exe (PID: 3436)
- firefox.exe (PID: 2992)
SUSPICIOUS
Executable content was dropped or overwritten
- Firefox Installer.de.exe (PID: 2940)
- setup-stub.exe (PID: 3904)
- setup-stub.exe (PID: 3784)
- download.exe (PID: 3352)
- setup.exe (PID: 3224)
- maintenanceservice_installer.exe (PID: 3040)
Application launched itself
- setup-stub.exe (PID: 3904)
- firefox.exe (PID: 2300)
- firefox.exe (PID: 2324)
Creates files in the program directory
- setup-stub.exe (PID: 3784)
- maintenanceservice_installer.exe (PID: 3040)
- maintenanceservice.exe (PID: 2120)
- setup.exe (PID: 3224)
- firefox.exe (PID: 2300)
Creates COM task schedule object
- setup.exe (PID: 3224)
Creates a software uninstall entry
- setup.exe (PID: 3224)
- maintenanceservice_installer.exe (PID: 3040)
Modifies the open verb of a shell class
- setup.exe (PID: 3224)
Starts application with an unusual extension
- setup.exe (PID: 3224)
Creates files in the user directory
- setup.exe (PID: 3224)
- firefox.exe (PID: 2300)
Reads CPU info
- firefox.exe (PID: 2300)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .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) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:08:31 00:18:33+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 65536 |
| InitializedDataSize: | 65536 |
| UninitializedDataSize: | 147456 |
| EntryPoint: | 0x34310 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 18.5.0.0 |
| ProductVersionNumber: | 18.5.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| CompanyName: | Mozilla |
| FileDescription: | Firefox |
| FileVersion: | 18.05 |
| InternalName: | 7zS.sfx |
| LegalCopyright: | Mozilla |
| OriginalFileName: | 7zS.sfx.exe |
| ProductName: | Firefox |
| ProductVersion: | 18.05 |
Summary
| 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 |
DOS Header
| 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 |
PE Headers
| 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: |
|
Sections
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 | 0x00010000 | 0x0000F600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.89699 |
.rsrc | 0x00035000 | 0x00010000 | 0x0000F200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.39743 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.38843 | 1365 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 5.28933 | 5160 | UNKNOWN | English - United States | RT_ICON |
3 | 5.05971 | 11560 | UNKNOWN | English - United States | RT_ICON |
4 | 7.98148 | 40620 | UNKNOWN | English - United States | RT_ICON |
5 | 6.59467 | 136 | UNKNOWN | English - United States | RT_STRING |
97 | 6.89291 | 184 | UNKNOWN | English - United States | RT_DIALOG |
188 | 6.06482 | 84 | UNKNOWN | English - United States | RT_STRING |
207 | 5.46967 | 52 | UNKNOWN | English - United States | RT_STRING |
Imports
KERNEL32.DLL |
MSVCRT.dll |
Total processes
51
Monitored processes
17
Malicious processes
13
Suspicious processes
3
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 400 | %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
| |||||||||||||||
| 1420 | "C:\Program Files\Firefox Nightly\firefox.exe" -contentproc --channel="2300.6.506069043\783533922" -childID 1 -isForBrowser -prefsHandle 1804 -prefMapHandle 2100 -prefsLen 1 -prefMapSize 180290 -parentBuildID 20190210094433 -greomni "C:\Program Files\Firefox Nightly\omni.ja" -appomni "C:\Program Files\Firefox Nightly\browser\omni.ja" -appdir "C:\Program Files\Firefox Nightly\browser" - 2300 "\\.\pipe\gecko-crash-server-pipe.2300" 924 tab | C:\Program Files\Firefox Nightly\firefox.exe | firefox.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Nightly Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 2120 | "C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe" install | C:\Program Files\Mozilla Maintenance Service\maintenanceservice.exe | — | maintenanceservice_installer.exe | |||||||||||
User: admin Company: Mozilla Foundation Integrity Level: HIGH Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 2300 | "C:\Program Files\Firefox Nightly\firefox.exe" | C:\Program Files\Firefox Nightly\firefox.exe | firefox.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Nightly Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 2324 | "C:\Program Files\Firefox Nightly\firefox.exe" | C:\Program Files\Firefox Nightly\firefox.exe | — | setup-stub.exe | |||||||||||
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Nightly Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 2332 | "C:\Users\admin\AppData\Local\Temp\nsiEBED.tmp\nsF5A3.tmp" "C:\Program Files\Firefox Nightly\maintenanceservice_installer.exe" | C:\Users\admin\AppData\Local\Temp\nsiEBED.tmp\nsF5A3.tmp | — | setup.exe | |||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Modules
| |||||||||||||||
| 2408 | "C:\Program Files\Firefox Nightly\firefox.exe" -contentproc --channel="2300.13.673692362\2071656185" -childID 2 -isForBrowser -prefsHandle 2080 -prefMapHandle 2120 -prefsLen 177 -prefMapSize 180290 -parentBuildID 20190210094433 -greomni "C:\Program Files\Firefox Nightly\omni.ja" -appomni "C:\Program Files\Firefox Nightly\browser\omni.ja" -appdir "C:\Program Files\Firefox Nightly\browser" - 2300 "\\.\pipe\gecko-crash-server-pipe.2300" 1836 tab | C:\Program Files\Firefox Nightly\firefox.exe | firefox.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Nightly Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 2940 | "C:\Users\admin\AppData\Local\Temp\Firefox Installer.de.exe" | C:\Users\admin\AppData\Local\Temp\Firefox Installer.de.exe | explorer.exe | ||||||||||||
User: admin Company: Mozilla Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 18.05 Modules
| |||||||||||||||
| 2992 | "C:\Program Files\Firefox Nightly\firefox.exe" -contentproc --channel="2300.27.379733884\961392037" -childID 4 -isForBrowser -prefsHandle 3292 -prefMapHandle 3296 -prefsLen 7047 -prefMapSize 180290 -parentBuildID 20190210094433 -greomni "C:\Program Files\Firefox Nightly\omni.ja" -appomni "C:\Program Files\Firefox Nightly\browser\omni.ja" -appdir "C:\Program Files\Firefox Nightly\browser" - 2300 "\\.\pipe\gecko-crash-server-pipe.2300" 3308 tab | C:\Program Files\Firefox Nightly\firefox.exe | firefox.exe | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: LOW Description: Firefox Nightly Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
| 3040 | "C:\Program Files\Firefox Nightly\maintenanceservice_installer.exe" | C:\Program Files\Firefox Nightly\maintenanceservice_installer.exe | nsF5A3.tmp | ||||||||||||
User: admin Company: Mozilla Corporation Integrity Level: HIGH Description: Mozilla Maintenance Service Installer Exit code: 0 Version: 67.0a1 Modules
| |||||||||||||||
Total events
1 510
Read events
1 346
Write events
159
Delete events
5
Modification events
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla |
| Operation: | write | Name: | Firefox NightlyInstallerTest |
Value: Write Test | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla |
| Operation: | delete value | Name: | Firefox NightlyInstallerTest |
Value: Write Test | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3784) setup-stub.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\setup-stub_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
Executable files
166
Suspicious files
64
Text files
172
Unknown types
130
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\download.exe | — | |
MD5:— | SHA256:— | |||
| 2940 | Firefox Installer.de.exe | C:\Users\admin\AppData\Local\Temp\7zSC7BF5EB9\setup-stub.exe | executable | |
MD5:— | SHA256:— | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\bgstub_2x.jpg | image | |
MD5:— | SHA256:— | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\config.ini | text | |
MD5:— | SHA256:— | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\bgstub.jpg | image | |
MD5:— | SHA256:— | |||
| 3352 | download.exe | C:\Users\admin\AppData\Local\Temp\7zS81D83AE9\core\AccessibleHandler.dll | executable | |
MD5:— | SHA256:— | |||
| 3352 | download.exe | C:\Users\admin\AppData\Local\Temp\7zS81D83AE9\core\AccessibleMarshal.dll | executable | |
MD5:— | SHA256:— | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\System.dll | executable | |
MD5:17ED1C86BD67E78ADE4712BE48A7D2BD | SHA256:BD046E6497B304E4EA4AB102CAB2B1F94CE09BDE0EEBBA4C59942A732679E4EB | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\UserInfo.dll | executable | |
MD5:1B446B36F5B4022D50FFDC0CF567B24A | SHA256:2862C7BC7F11715CEBDEA003564A0D70BF42B73451E2B672110E1392EC392922 | |||
| 3784 | setup-stub.exe | C:\Users\admin\AppData\Local\Temp\nsb9988.tmp\InetBgDL.dll | executable | |
MD5:73A0BEC837004BC5AE5CD0A5B0D3BCF8 | SHA256:737538C2F2D85ACEB5F79B846403FB96B562DDF61D4405CCD6C27869216521D0 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
14
TCP/UDP connections
33
DNS requests
83
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3784 | setup-stub.exe | GET | 200 | 52.42.67.12:80 | http://download-stats.mozilla.org/stub/v8/nightly/nightly/de/0/0/6/1/7601/1/0/0/2/0/45173704/45173704/0/0/13/13/0/0/22/2/0/0/1/0/0/67.0a1/20190210094433/1/1/0/3/13.32.221.111/campaign%3D%2528not%2Bset%2529%26content%3D%2528not%2Bset%2529%26medium%3D%2528none%2529%26source%3Dwww.mozilla.org/0/0 | US | — | — | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | POST | 200 | 172.217.16.131:80 | http://ocsp.pki.goog/GTSGIAG3 | US | der | 463 b | whitelisted |
2300 | firefox.exe | POST | 200 | 172.217.16.131:80 | http://ocsp.pki.goog/GTSGIAG3 | US | der | 463 b | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | POST | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/ | US | der | 471 b | whitelisted |
2300 | firefox.exe | GET | 200 | 2.16.186.112:80 | http://detectportal.firefox.com/success.txt | unknown | text | 8 b | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2300 | firefox.exe | 52.18.148.152:443 | location.services.mozilla.com | Amazon.com, Inc. | IE | unknown |
2300 | firefox.exe | 104.16.40.2:443 | www.mozilla.org | Cloudflare Inc | US | shared |
2300 | firefox.exe | 52.89.32.107:443 | search.services.mozilla.com | Amazon.com, Inc. | US | unknown |
2300 | firefox.exe | 34.215.11.207:443 | accounts.firefox.com | Amazon.com, Inc. | US | unknown |
2300 | firefox.exe | 63.245.208.195:443 | mozilla.org | Mozilla Corporation | US | unknown |
2300 | firefox.exe | 172.217.16.131:80 | ocsp.pki.goog | Google Inc. | US | whitelisted |
2300 | firefox.exe | 13.32.159.252:443 | snippets.cdn.mozilla.net | Amazon.com, Inc. | US | unknown |
3784 | setup-stub.exe | 52.42.67.12:80 | download-stats.mozilla.org | Amazon.com, Inc. | US | unknown |
2300 | firefox.exe | 2.16.186.112:80 | detectportal.firefox.com | Akamai International B.V. | — | whitelisted |
2300 | firefox.exe | 52.35.215.194:443 | shavar.services.mozilla.com | Amazon.com, Inc. | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
download.mozilla.org |
| whitelisted |
download-installer.cdn.mozilla.net |
| whitelisted |
download-stats.mozilla.org |
| whitelisted |
location.services.mozilla.com |
| whitelisted |
detectportal.firefox.com |
| whitelisted |
locprod1-elb-eu-west-1.prod.mozaws.net |
| whitelisted |
a1089.dscd.akamai.net |
| whitelisted |
www.mozilla.org |
| whitelisted |
www.mozilla.org.cdn.cloudflare.net |
| whitelisted |
ocsp.digicert.com |
| whitelisted |