URL:

https://cdn.stubdownloader.services.mozilla.com/builds/firefox-stub/en-US/win/75dbc37a646b3a3858a9da6180a18d6641e10bdf9ece2ad13791dc076e4064b9/Firefox%20Installer.exe

Full analysis: https://app.any.run/tasks/db12b3cb-5fbd-4aa7-82db-e60f22565e9d
Verdict: Malicious activity
Analysis date: March 25, 2020, 07:07:16
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

106A23349BFD9D9A88AAAA3FCD833C29

SHA1:

B6F190FB7B891D014E78EA5D24392DEE238B198A

SHA256:

39E8E3550E64803C98BA335A4E3F90190688EB5021A45453719CC6857FE627D5

SSDEEP:

3:N8cOsIXiAQ7idIaJBNC9drRxKSMLYkEdTHGhUdacVlVTJHnTXLNn:2cfZidvidFxJKYkEhO7gbHTXLN

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

    • Application was dropped or rewritten from another process

      • setup-stub.exe (PID: 3056)
      • Firefox Installer.exe (PID: 3684)
      • setup-stub.exe (PID: 3832)

    • Loads dropped or rewritten executable

      • setup-stub.exe (PID: 3832)
      • setup-stub.exe (PID: 3056)

    • Changes settings of System certificates

      • setup-stub.exe (PID: 3832)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • chrome.exe (PID: 660)
      • chrome.exe (PID: 3888)
      • Firefox Installer.exe (PID: 3684)
      • setup-stub.exe (PID: 3056)
      • setup-stub.exe (PID: 3832)

    • Application launched itself

      • setup-stub.exe (PID: 3056)

    • Creates files in the program directory

      • setup-stub.exe (PID: 3832)

    • Reads Internet Cache Settings

      • setup-stub.exe (PID: 3832)

    • Adds / modifies Windows certificates

      • setup-stub.exe (PID: 3832)

  • INFO

    • Reads the hosts file

      • chrome.exe (PID: 3888)
      • chrome.exe (PID: 660)

    • Reads Internet Cache Settings

      • chrome.exe (PID: 660)

    • Application launched itself

      • chrome.exe (PID: 660)

    • Reads settings of System Certificates

      • setup-stub.exe (PID: 3832)
      • chrome.exe (PID: 3888)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
53
Monitored processes
14
Malicious processes
4
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start drop and start chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs firefox installer.exe setup-stub.exe setup-stub.exe

Process information

PID
CMD
Path
Indicators
Parent process
660"C:\Program Files\Google\Chrome\Application\chrome.exe" "https://cdn.stubdownloader.services.mozilla.com/builds/firefox-stub/en-US/win/75dbc37a646b3a3858a9da6180a18d6641e10bdf9ece2ad13791dc076e4064b9/Firefox%20Installer.exe"C:\Program Files\Google\Chrome\Application\chrome.exe
explorer.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
1692"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=watcher --main-thread-id=1756 --on-initialized-event-handle=324 --parent-handle=328 /prefetch:6C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
1784"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,1992850417130595378,3684467874486201018,131072 --enable-features=PasswordImport --lang=en-US --extension-process --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=10598883327060542430 --renderer-client-id=4 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2668 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
2240"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1040,1992850417130595378,3684467874486201018,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=utility --service-request-channel-token=4314204697849055752 --mojo-platform-channel-handle=500 --ignored=" --type=renderer " /prefetch:8C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
2452"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win32 --annotation=prod=Chrome --annotation=ver=75.0.3770.100 --initial-client-data=0x7c,0x80,0x84,0x78,0x88,0x6fa6a9d0,0x6fa6a9e0,0x6fa6a9ecC:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
MEDIUM
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
2936"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,1992850417130595378,3684467874486201018,131072 --enable-features=PasswordImport --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=14060989616976805866 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2280 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
3056.\setup-stub.exeC:\Users\admin\AppData\Local\Temp\7zS46EB5EF8\setup-stub.exe
Firefox Installer.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox Installer
Exit code:
0
Version:
74.0
Modules
Images
c:\users\admin\appdata\local\temp\7zs46eb5ef8\setup-stub.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
3248"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1040,1992850417130595378,3684467874486201018,131072 --enable-features=PasswordImport --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=499745868623369659 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2288 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
3272"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=1040,1992850417130595378,3684467874486201018,131072 --enable-features=PasswordImport --gpu-preferences=KAAAAAAAAADgAAAgAQAAAAAAAAAAAGAAAAAAAAAAAAAIAAAAAAAAACgAAAAEAAAAIAAAAAAAAAAoAAAAAAAAADAAAAAAAAAAOAAAAAAAAAAQAAAAAAAAAAAAAAAFAAAAEAAAAAAAAAAAAAAABgAAABAAAAAAAAAAAQAAAAUAAAAQAAAAAAAAAAEAAAAGAAAA --service-request-channel-token=10596789459854590459 --mojo-platform-channel-handle=1052 --ignored=" --type=renderer " /prefetch:2C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google LLC
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
75.0.3770.100
Modules
Images
c:\program files\google\chrome\application\chrome.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\google\chrome\application\75.0.3770.100\chrome_elf.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
3684"C:\Users\admin\Downloads\Firefox Installer.exe" C:\Users\admin\Downloads\Firefox Installer.exe
chrome.exe
User:
admin
Company:
Mozilla
Integrity Level:
MEDIUM
Description:
Firefox
Exit code:
0
Version:
18.05
Modules
Images
c:\users\admin\downloads\firefox installer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\imm32.dll
Total events
2 637
Read events
2 013
Write events
619
Delete events
5

Modification events

(PID) Process:(1692) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:writeName:660-13229593651433000
Value:
259
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:failed_count
Value:
0
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
2
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
01000000
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
1
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}
Operation:writeName:dr
Value:
1
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome
Operation:writeName:UsageStatsInSample
Value:
0
(PID) Process:(660) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:delete valueName:3120-13213713943555664
Value:
0
(PID) Process:(660) chrome.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Google\Update\ClientStateMedium\{8A69D345-D564-463C-AFF1-A69D9E530F96}
Operation:writeName:usagestats
Value:
0
Executable files
12
Suspicious files
10
Text files
83
Unknown types
0

Dropped files

PID
Process
Filename
Type
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\BrowserMetrics\BrowserMetrics-5E7B0333-294.pma —
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\40b4d56e-3a48-4fc0-9198-96882c36b2e5.tmp —
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\000028.dbtmp —
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.oldtext
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.old~RFa66bf1.TMPtext
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.oldtext
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\BudgetDatabase\LOG.old~RFa66c10.TMPtext
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\LOG.old~RFa66c01.TMPtext
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old —
MD5:—
SHA256:—
660chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old~RFa66d78.TMP —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
12
DNS requests
10
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3832
setup-stub.exe
GET
200
52.88.2.20:80
http://download-stats.mozilla.org/stub/v8/release/release/en-US/0/0/6/1/7601/1/0/10/0////0/0/0/0/0/11080/0/0/0/////0/0/1/1/0/3/Unknown//2/328216
US
—
—
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3888
chrome.exe
216.58.207.35:443
www.gstatic.com
Google Inc.
US
whitelisted
3888
chrome.exe
216.58.205.238:443
clients1.google.com
Google Inc.
US
whitelisted
3888
chrome.exe
172.217.18.163:443
clientservices.googleapis.com
Google Inc.
US
whitelisted
3888
chrome.exe
99.86.7.113:443
cdn.stubdownloader.services.mozilla.com
AT&T Services, Inc.
US
suspicious
3832
setup-stub.exe
52.88.2.20:80
download-stats.mozilla.org
Amazon.com, Inc.
US
unknown
3832
setup-stub.exe
143.204.202.121:443
product-details.mozilla.org
—
US
suspicious
3888
chrome.exe
172.217.16.205:443
accounts.google.com
Google Inc.
US
whitelisted
3888
chrome.exe
172.217.22.110:443
sb-ssl.google.com
Google Inc.
US
whitelisted
3888
chrome.exe
172.217.22.35:443
ssl.gstatic.com
Google Inc.
US
whitelisted
3888
chrome.exe
172.217.22.68:443
www.google.com
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
clientservices.googleapis.com
  • 172.217.18.163
whitelisted
cdn.stubdownloader.services.mozilla.com
  • 99.86.7.113
  • 99.86.7.73
  • 99.86.7.72
  • 99.86.7.82
shared
accounts.google.com
  • 172.217.16.205
shared
sb-ssl.google.com
  • 172.217.22.110
whitelisted
www.google.com
  • 172.217.22.68
malicious
ssl.gstatic.com
  • 172.217.22.35
whitelisted
www.gstatic.com
  • 216.58.207.35
whitelisted
clients1.google.com
  • 216.58.205.238
whitelisted
product-details.mozilla.org
  • 143.204.202.121
  • 143.204.202.29
  • 143.204.202.27
  • 143.204.202.61
shared
download-stats.mozilla.org
  • 52.88.2.20
  • 34.215.48.141
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
https://cdn.stubdownloader.services.mozilla.com/builds/firefox-stub/en-US/win/75dbc37a646b3a3858a9da6180a18d6641e10bdf9ece2ad13791dc076e4064b9/Firefox%20Installer.exe