URL:

http://statics.teams.cdn.office.net/production-windows-x64/1.3.00.34662/Teams_windows_x64.exe

Full analysis: https://app.any.run/tasks/adbab9d1-4947-4e79-a0d4-8e89a8530cd0
Verdict: Malicious activity
Analysis date: January 21, 2021, 09:28:58
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

21A60125212C984CE8D7424A0DAA7ECF

SHA1:

26D0FD92816DCE8FE6E8743F5FFA18B199E6E34A

SHA256:

9B2805BF7AC799372C2BBD132C456E2E94E25E0FB73A737BA8794DC8D308B252

SSDEEP:

3:N1KNRwu9puaQGRMdv3LWDLWZaGEI9/xN:C3H7TRMdv3LrrEu5N

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

      • Teams_windows_x64.exe (PID: 2780)
      • Update.exe (PID: 564)
      • Squirrel.exe (PID: 1716)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • Squirrel.exe (PID: 1716)
      • chrome.exe (PID: 2492)
      • Teams_windows_x64.exe (PID: 2780)
      • Update.exe (PID: 564)

    • Drops a file with a compile date too recent

      • chrome.exe (PID: 1936)
      • Teams_windows_x64.exe (PID: 2780)
      • Update.exe (PID: 564)
      • Squirrel.exe (PID: 1716)

    • Reads Environment values

      • Update.exe (PID: 564)
      • Squirrel.exe (PID: 1716)

    • Drops a file that was compiled in debug mode

      • chrome.exe (PID: 2492)
      • Update.exe (PID: 564)

    • Creates files in the user directory

      • Update.exe (PID: 564)

    • Drops a file with too old compile date

      • Update.exe (PID: 564)

  • INFO

    • Reads the hosts file

      • chrome.exe (PID: 1936)
      • chrome.exe (PID: 2492)

    • Reads Microsoft Office registry keys

      • Update.exe (PID: 564)
      • Squirrel.exe (PID: 1716)

    • Application launched itself

      • chrome.exe (PID: 2492)

    • Reads settings of System Certificates

      • Update.exe (PID: 564)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
50
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 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 teams_windows_x64.exe update.exe squirrel.exe notepad.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
564"C:\Users\admin\AppData\Local\SquirrelTemp\Update.exe" --install . --exeName=Teams_windows_x64.exeC:\Users\admin\AppData\Local\SquirrelTemp\Update.exe
Teams_windows_x64.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Teams
Exit code:
4294967295
Version:
1.10.56.0
Modules
Images
c:\users\admin\appdata\local\squirreltemp\update.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
1684"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1036,9716961057646429694,3374206213085204729,131072 --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=5497565945690996087 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2172 /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
1716"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Squirrel.exe" --updateSelf=C:\Users\admin\AppData\Local\SquirrelTemp\Update.exeC:\Users\admin\AppData\Local\Microsoft\Teams\current\Squirrel.exe
Update.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Teams
Exit code:
0
Version:
1.10.56.0
Modules
Images
c:\users\admin\appdata\local\microsoft\teams\current\squirrel.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
1936"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1036,9716961057646429694,3374206213085204729,131072 --enable-features=PasswordImport --lang=en-US --service-sandbox-type=network --service-request-channel-token=6253285651569502877 --mojo-platform-channel-handle=1532 /prefetch:8C:\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
2424"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=watcher --main-thread-id=2348 --on-initialized-event-handle=316 --parent-handle=320 /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
2492"C:\Program Files\Google\Chrome\Application\chrome.exe" --disk-cache-dir=null --disk-cache-size=1 --media-cache-size=1 --disable-gpu-shader-disk-cache --disable-background-networking "http://statics.teams.cdn.office.net/production-windows-x64/1.3.00.34662/Teams_windows_x64.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
2652"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1036,9716961057646429694,3374206213085204729,131072 --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=11862392224182920905 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2184 /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
2772"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --field-trial-handle=1036,9716961057646429694,3374206213085204729,131072 --enable-features=PasswordImport --lang=en-US --no-sandbox --service-request-channel-token=7880040318456541122 --mojo-platform-channel-handle=2504 /prefetch:8C:\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
2780"C:\Users\admin\Downloads\Teams_windows_x64.exe" C:\Users\admin\Downloads\Teams_windows_x64.exe
chrome.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Teams
Exit code:
4294967295
Version:
1.3.00.34662
Modules
Images
c:\users\admin\downloads\teams_windows_x64.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\advapi32.dll
2924"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=1036,9716961057646429694,3374206213085204729,131072 --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=13136279119901840758 --renderer-client-id=4 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2352 /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
Total events
1 797
Read events
1 685
Write events
109
Delete events
3

Modification events

(PID) Process:(2424) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:writeName:2492-13255694954766125
Value:
259
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:failed_count
Value:
0
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
2
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\ThirdParty
Operation:writeName:StatusCodes
Value:
01000000
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BLBeacon
Operation:writeName:state
Value:
1
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Update\ClientState\{8A69D345-D564-463c-AFF1-A69D9E530F96}
Operation:writeName:dr
Value:
1
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome
Operation:writeName:UsageStatsInSample
Value:
0
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:delete valueName:3252-13245750958665039
Value:
0
(PID) Process:(2492) chrome.exeKey:HKEY_CURRENT_USER\Software\Google\Chrome\BrowserExitCodes
Operation:delete valueName:2492-13255694954766125
Value:
259
Executable files
291
Suspicious files
11
Text files
237
Unknown types
59

Dropped files

PID
Process
Filename
Type
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\BrowserMetrics\BrowserMetrics-6009496B-9BC.pma —
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\0c1c9db7-3dea-43d9-b1ac-dfd14656ec03.tmp —
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\000048.dbtmp —
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.old~RF15023c.TMPtext
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Site Characteristics Database\LOG.oldtext
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\LOG.oldtext
MD5:—
SHA256:—
3028chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\CrashpadMetrics.pmabinary
MD5:9543068B6751E1F3E11F91D72EE78D95
SHA256:D060AD21AE6E04CB58668CAA52ADFCA573E018102CC07554D2ED3EAE11AB7785
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad\settings.datbinary
MD5:9C016064A1F864C8140915D77CF3389A
SHA256:0E7265D4A8C16223538EDD8CD620B8820611C74538E420A88E333BE7F62AC787
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old —
MD5:—
SHA256:—
2492chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\LOG.old~RF150410.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
8
DNS requests
5
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1936
chrome.exe
GET
200
2.16.107.41:80
http://statics.teams.cdn.office.net/production-windows-x64/1.3.00.34662/Teams_windows_x64.exe
unknown
executable
109 Mb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1936
chrome.exe
2.16.107.41:80
statics.teams.cdn.office.net
Akamai International B.V.
—
malicious
1936
chrome.exe
172.217.18.99:443
ssl.gstatic.com
Google Inc.
US
whitelisted
1936
chrome.exe
74.125.202.100:443
clients1.google.com
Google Inc.
US
whitelisted
564
Update.exe
52.114.76.34:443
mobile.pipe.aria.microsoft.com
Microsoft Corporation
IE
whitelisted
1936
chrome.exe
108.177.111.84:443
accounts.google.com
Google Inc.
US
unknown
1716
Squirrel.exe
52.114.76.34:443
mobile.pipe.aria.microsoft.com
Microsoft Corporation
IE
whitelisted

DNS requests

Domain
IP
Reputation
statics.teams.cdn.office.net
  • 2.16.107.41
  • 2.16.107.91
whitelisted
accounts.google.com
  • 108.177.111.84
shared
ssl.gstatic.com
  • 172.217.18.99
whitelisted
clients1.google.com
  • 74.125.202.100
  • 74.125.202.101
  • 74.125.202.113
  • 74.125.202.102
  • 74.125.202.138
  • 74.125.202.139
whitelisted
mobile.pipe.aria.microsoft.com
  • 52.114.76.34
whitelisted

Threats

PID
Process
Class
Message
1936
chrome.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
1936
chrome.exe
Misc activity
ET INFO EXE - Served Attached HTTP
1936
chrome.exe
Generic Protocol Command Decode
SURICATA HTTP unable to match response to request
Process
Message
Update.exe
Update.exe Information: 0 :
Update.exe
Starting TelemetryManager constructor
Update.exe
Update.exe Information: 0 :
Update.exe
TelemetryManagerImpl creation started
Update.exe
Update.exe Information: 0 :
Update.exe
Performance counters are disabled. Skipping creation of counters category.
Update.exe
Update.exe Information: 0 :
Update.exe
RecordBatcherTask with ID 4 started.
Update.exe
Update.exe Information: 0 :
Update.exe
DataPackageSender with UserAgent name: AST-exe-C#, version: 1.10.56.0, [Ast_Default_Source]
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Reports
http://statics.teams.cdn.office.net/production-windows-x64/1.3.00.34662/Teams_windows_x64.exe