URL:

https://urldefense.com/v3/__https://welink.zhumu.com/j/136798573__;!!JTSHVUr6R1OOzg!cPHKCUsppmSjcvcV7XSCzGHgaaLqyn2ZoPbUOT55CURI-IdQINvCEpKuKzOV$

Full analysis: https://app.any.run/tasks/6224a498-72fa-4acf-9333-8f18c7b5366c
Verdict: Malicious activity
Analysis date: July 29, 2021, 09:38:31
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MD5:

CEC1DFF22DB8493AF0D2A529C4DA22F8

SHA1:

41DFBFB64AB7C337F2AF2A675B49FFEE9CF8E7B3

SHA256:

E9A08249363862024865AEC2AD78296B1D6A1F4E87675F09A2C5C3F300358950

SSDEEP:

3:N8U2DAL5IKTWK66NR05fwCUWDd2ReEGxKm/wit2G+94AX2HwqxcCsIsCsroQufqt:2UJtIrhVvPMRqP/ZtI9vvRBuf8

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

      • WeMeetingSetup.exe (PID: 3268)
      • PreConfigAdmin.exe (PID: 3796)
      • PreConfig.exe (PID: 3244)
      • WeMeeting.exe (PID: 1576)

    • Drops executable file immediately after starts

      • WeMeetingSetup.exe (PID: 3268)

    • Loads dropped or rewritten executable

      • WeMeetingSetup.exe (PID: 3268)
      • WeMeeting.exe (PID: 1576)

  • SUSPICIOUS

    • Reads Microsoft Outlook installation path

      • iexplore.exe (PID: 3920)

    • Reads the computer name

      • WeMeetingSetup.exe (PID: 3268)
      • PreConfig.exe (PID: 3244)
      • WeMeeting.exe (PID: 1576)

    • Executable content was dropped or overwritten

      • iexplore.exe (PID: 3920)
      • WeMeetingSetup.exe (PID: 3268)

    • Checks supported languages

      • WeMeetingSetup.exe (PID: 3268)
      • PreConfig.exe (PID: 3244)
      • WeMeeting.exe (PID: 1576)

    • Drops a file with too old compile date

      • WeMeetingSetup.exe (PID: 3268)

    • Drops a file that was compiled in debug mode

      • WeMeetingSetup.exe (PID: 3268)

    • Drops a file with a compile date too recent

      • WeMeetingSetup.exe (PID: 3268)

    • Creates files in the user directory

      • PreConfig.exe (PID: 3244)
      • WeMeeting.exe (PID: 1576)
      • WeMeetingSetup.exe (PID: 3268)

    • Creates a software uninstall entry

      • WeMeetingSetup.exe (PID: 3268)

    • Changes default file association

      • WeMeetingSetup.exe (PID: 3268)

  • INFO

    • Checks supported languages

      • iexplore.exe (PID: 2808)
      • iexplore.exe (PID: 3920)

    • Reads the computer name

      • iexplore.exe (PID: 2808)
      • iexplore.exe (PID: 3920)

    • Changes internet zones settings

      • iexplore.exe (PID: 2808)

    • Application launched itself

      • iexplore.exe (PID: 2808)

    • Checks Windows Trust Settings

      • iexplore.exe (PID: 3920)
      • iexplore.exe (PID: 2808)
      • WeMeeting.exe (PID: 1576)

    • Modifies the phishing filter of IE

      • iexplore.exe (PID: 2808)

    • Adds / modifies Windows certificates

      • iexplore.exe (PID: 2808)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 2808)
      • iexplore.exe (PID: 3920)
      • WeMeeting.exe (PID: 1576)

    • Reads internet explorer settings

      • iexplore.exe (PID: 3920)

    • Changes settings of System certificates

      • iexplore.exe (PID: 2808)

    • Dropped object may contain Bitcoin addresses

      • iexplore.exe (PID: 2808)
      • WeMeetingSetup.exe (PID: 3268)

    • Creates files in the user directory

      • iexplore.exe (PID: 2808)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
6
Malicious processes
3
Suspicious processes
1

Behavior graph

Click at the process to see the details
start drop and start drop and start iexplore.exe iexplore.exe wemeetingsetup.exe preconfig.exe no specs preconfigadmin.exe no specs wemeeting.exe

Process information

PID
CMD
Path
Indicators
Parent process
1576"C:\Users\admin\AppData\Roaming\WeMeeting\WeMeeting.exe"C:\Users\admin\AppData\Roaming\WeMeeting\WeMeeting.exe
WeMeetingSetup.exe
User:
admin
Company:
Huawei
Integrity Level:
MEDIUM
Description:
WeMeeting
Exit code:
0
Version:
1.2.0.5
Modules
Images
c:\users\admin\appdata\roaming\wemeeting\wemeeting.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\roaming\wemeeting\sdk.dll
c:\users\admin\appdata\roaming\wemeeting\cmmlib.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
2808"C:\Program Files\Internet Explorer\iexplore.exe" "https://urldefense.com/v3/__https://welink.zhumu.com/j/136798573__;!!JTSHVUr6R1OOzg!cPHKCUsppmSjcvcV7XSCzGHgaaLqyn2ZoPbUOT55CURI-IdQINvCEpKuKzOVf7f81a39-5f63-5b42-9efd-1f13b5431005quot;C:\Program Files\Internet Explorer\iexplore.exe
Explorer.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
3244"C:\Users\admin\AppData\Roaming\WeMeeting\PreConfig.exe" englishC:\Users\admin\AppData\Roaming\WeMeeting\PreConfig.exe—WeMeetingSetup.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
4294967295
Modules
Images
c:\users\admin\appdata\roaming\wemeeting\preconfig.exe
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\ntdll.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\lpk.dll
c:\windows\system32\user32.dll
3268"C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\WeMeetingSetup.exe" C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B6QGX7LP\WeMeetingSetup.exe
iexplore.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\microsoft\windows\temporary internet files\content.ie5\b6qgx7lp\wemeetingsetup.exe
c:\windows\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
3796C:\Users\admin\AppData\Roaming\WeMeeting\PreConfigAdmin.exeC:\Users\admin\AppData\Roaming\WeMeeting\PreConfigAdmin.exe—PreConfig.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3221226540
Modules
Images
c:\users\admin\appdata\roaming\wemeeting\preconfigadmin.exe
c:\windows\system32\ntdll.dll
3920"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2808 CREDAT:267521 /prefetch:2C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\api-ms-win-downlevel-advapi32-l1-1-0.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\iertutil.dll
Total events
22 565
Read events
22 335
Write events
220
Delete events
10

Modification events

(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPDaysSinceLastAutoMigration
Value:
1
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchLowDateTime
Value:
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
Operation:writeName:NTPLastLaunchHighDateTime
Value:
30901341
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateLowDateTime
Value:
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager
Operation:writeName:NextCheckForUpdateHighDateTime
Value:
30901341
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content
Operation:writeName:CachePrefix
Value:
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies
Operation:writeName:CachePrefix
Value:
Cookie:
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History
Operation:writeName:CachePrefix
Value:
Visited:
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(2808) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
Executable files
111
Suspicious files
76
Text files
36
Unknown types
62

Dropped files

PID
Process
Filename
Type
3920iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157binary
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_BACC6CD2B29F18349081C9FD2343833Bder
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\72BA427A91F50409B9EAC87F2B59B951_14541052F51AB35E7EEB1FA45936A529binary
MD5:—
SHA256:—
2808iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63binary
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_BACC6CD2B29F18349081C9FD2343833Bbinary
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\136798573[1].htmhtml
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\00773B6FF14642B6FCE564FCC68E5B58binary
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\launch.min[1].jstext
MD5:—
SHA256:—
2808iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63der
MD5:—
SHA256:—
3920iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\5IWPIAR9\launch.min[1].csstext
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
12
TCP/UDP connections
47
DNS requests
22
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3920
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ5rEWLwbJFq%2FmAU80sm7E%3D
US
der
471 b
whitelisted
3920
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAilokbNS1yMg9cCtLurU0k%3D
US
der
471 b
whitelisted
3920
iexplore.exe
GET
200
151.139.128.14:80
http://ocsp.sectigo.com/MFIwUDBOMEwwSjAJBgUrDgMCGgUABBQh80WaEMqmyEvaHjlisSfVM4p8SAQUF9nWJSdn%2BTHCSUPZMDZEjGypT%2BsCEQCggUQ1i8HsVWj6t3pjeTok
US
der
472 b
whitelisted
3920
iexplore.exe
GET
200
93.184.220.29:80
http://status.rapidssl.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRhhZrQET0hvbSHUJmNfBKqR%2FiT7wQUU8oXWfxrwAMhLxqu5KqoHIJW2nUCEA6y7CiRe5jMk9hdX1H1SYI%3D
US
der
471 b
shared
3920
iexplore.exe
GET
200
151.139.128.14:80
http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTNMNJMNDqCqx8FcBWK16EHdimS6QQUU3m%2FWqorSs9UgOHYm8Cd8rIDZssCEBN9U5yqfDGppDNwGWiEeo0%3D
US
der
727 b
whitelisted
2808
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D
US
der
1.47 Kb
whitelisted
2808
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAxq6XzO1ZmDhpCgCp6lMhQ%3D
US
der
471 b
whitelisted
3920
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSXi0cW5bD2WLrmnasWibg2OuPDpgQUVXRPsnJP9WC6UNHX5lFcmgGHGtcCEAXt2Rb8Lji%2BSl1dVyhpapE%3D
US
der
471 b
whitelisted
3920
iexplore.exe
GET
200
8.253.207.121:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?b769f77acfc87c05
US
compressed
4.70 Kb
whitelisted
2808
iexplore.exe
GET
200
72.21.91.29:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
US
der
471 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
3920
iexplore.exe
52.71.28.102:443
urldefense.com
Amazon.com, Inc.
US
suspicious
3920
iexplore.exe
151.139.128.14:80
ocsp.usertrust.com
Highwinds Network Group, Inc.
US
suspicious
2808
iexplore.exe
13.107.22.200:443
www.bing.com
Microsoft Corporation
US
whitelisted
2808
iexplore.exe
72.21.91.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3920
iexplore.exe
72.21.91.29:80
ocsp.digicert.com
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3920
iexplore.exe
8.210.48.175:443
welink.zhumu.com
Level 3 Communications, Inc.
US
unknown
3920
iexplore.exe
47.242.208.233:443
meeting.zhumu.me
—
US
unknown
2808
iexplore.exe
13.92.246.37:443
query.prod.cms.msn.com
Microsoft Corporation
US
whitelisted
3920
iexplore.exe
8.253.207.121:80
ctldl.windowsupdate.com
Level 3 Communications, Inc.
US
suspicious
1576
WeMeeting.exe
47.242.208.233:443
meeting.zhumu.me
—
US
unknown

DNS requests

Domain
IP
Reputation
urldefense.com
  • 52.71.28.102
  • 52.204.90.22
  • 52.6.56.188
shared
ctldl.windowsupdate.com
  • 8.253.207.121
  • 8.248.141.254
  • 67.26.73.254
  • 8.253.95.121
  • 8.253.207.120
whitelisted
api.bing.com
  • 13.107.5.80
whitelisted
www.bing.com
  • 13.107.22.200
  • 131.253.33.200
whitelisted
ocsp.usertrust.com
  • 151.139.128.14
whitelisted
ocsp.sectigo.com
  • 151.139.128.14
whitelisted
ocsp.digicert.com
  • 72.21.91.29
whitelisted
welink.zhumu.com
  • 8.210.48.175
unknown
meeting.zhumu.me
  • 47.242.208.233
unknown
status.rapidssl.com
  • 93.184.220.29
shared

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
https://urldefense.com/v3/__https://welink.zhumu.com/j/136798573__;!!JTSHVUr6R1OOzg!cPHKCUsppmSjcvcV7XSCzGHgaaLqyn2ZoPbUOT55CURI-IdQINvCEpKuKzOV$