| URL: | http://down10d.zol.com.cn/zoldownload_os/YoudaoDict8.6.2@81_313019.exe/ |
| Full analysis: | https://app.any.run/tasks/42b47151-aeaf-492d-94ac-4dc049489dfb |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | May 21, 2022, 05:33:17 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MD5: | F9D1B3874175EB808142C6E62521F6B0 |
| SHA1: | 9167F2E6506CC1D07F4A218C257AA5075A513FF2 |
| SHA256: | 34697D8EBC4B2F6256518C5AE356BB45F5037E6BADB386147BE4C11E02EDBAF2 |
| SSDEEP: | 3:N1KaKhmI6zKnkKhxdjvSUc0dv:CabzaSUrJ |
MALICIOUS
Drops executable file immediately after starts
- iexplore.exe (PID: 920)
- iexplore.exe (PID: 2444)
SUSPICIOUS
Executable content was dropped or overwritten
- iexplore.exe (PID: 2444)
- iexplore.exe (PID: 920)
Starts Internet Explorer
- rundll32.exe (PID: 2568)
Uses RUNDLL32.EXE to load library
- iexplore.exe (PID: 2444)
Reads Microsoft Outlook installation path
- iexplore.exe (PID: 920)
Drops a file with a compile date too recent
- iexplore.exe (PID: 920)
- iexplore.exe (PID: 2444)
INFO
Checks supported languages
- iexplore.exe (PID: 2444)
- rundll32.exe (PID: 2568)
- iexplore.exe (PID: 920)
- iexplore.exe (PID: 2084)
Reads settings of System Certificates
- iexplore.exe (PID: 2444)
- iexplore.exe (PID: 920)
Checks Windows Trust Settings
- iexplore.exe (PID: 2444)
- iexplore.exe (PID: 920)
Reads the computer name
- iexplore.exe (PID: 2444)
- iexplore.exe (PID: 920)
- rundll32.exe (PID: 2568)
- iexplore.exe (PID: 2084)
Application launched itself
- iexplore.exe (PID: 2444)
Changes internet zones settings
- iexplore.exe (PID: 2444)
Creates files in the user directory
- iexplore.exe (PID: 920)
- iexplore.exe (PID: 2444)
Reads internet explorer settings
- iexplore.exe (PID: 920)
Reads the date of Windows installation
- iexplore.exe (PID: 2444)
Modifies the phishing filter of IE
- iexplore.exe (PID: 2444)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Total processes
38
Monitored processes
4
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 920 | "C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2444 CREDAT:267521 /prefetch:2 | C:\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
| |||||||||||||||
| 2084 | "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?LinkId=57426&Ext=2@81_313019[1] | C:\Program Files\Internet Explorer\iexplore.exe | — | rundll32.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
| |||||||||||||||
| 2444 | "C:\Program Files\Internet Explorer\iexplore.exe" "http://down10d.zol.com.cn/zoldownload_os/YoudaoDict8.6.2@81_313019.exe/" | C:\Program Files\Internet Explorer\iexplore.exe | Explorer.EXE | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Internet Explorer Exit code: 1 Version: 11.00.9600.16428 (winblue_gdr.131013-1700) Modules
| |||||||||||||||
| 2568 | "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\78RFYB7Z\YoudaoDict8.6.2@81_313019[1] | C:\Windows\system32\rundll32.exe | — | iexplore.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
15 061
Read events
14 921
Write events
139
Delete events
1
Modification events
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing |
| Operation: | write | Name: | NTPDaysSinceLastAutoMigration |
Value: 1 | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing |
| Operation: | write | Name: | NTPLastLaunchLowDateTime |
Value: | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing |
| Operation: | write | Name: | NTPLastLaunchHighDateTime |
Value: 30960852 | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager |
| Operation: | write | Name: | NextCheckForUpdateLowDateTime |
Value: | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\UrlBlockManager |
| Operation: | write | Name: | NextCheckForUpdateHighDateTime |
Value: 30960852 | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main |
| Operation: | write | Name: | CompatibilityFlags |
Value: 0 | |||
| (PID) Process: | (2444) iexplore.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
Executable files
3
Suspicious files
15
Text files
87
Unknown types
8
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 920 | iexplore.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\DY534W2X\YoudaoDict8.6.2@81_313019[1] | executable | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157 | binary | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63 | der | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\6BADA8974A10C4BD62CC921D13E43B18_711ED44619924BA6DC33E69F97E7FF63 | binary | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\H4FMTHVB.txt | text | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\Q5DY8X4S.txt | text | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\9F3VRU3H.txt | text | |
MD5:— | SHA256:— | |||
| 2444 | iexplore.exe | C:\Users\admin\AppData\Local\Temp\~DF68738AAD58971CCD.TMP | gmc | |
MD5:— | SHA256:— | |||
| 2444 | iexplore.exe | C:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{85F35AD7-D8C7-11EC-B7B7-12A9866C77DE}.dat | binary | |
MD5:— | SHA256:— | |||
| 920 | iexplore.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\Low\D42MAHP8.txt | text | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
6
TCP/UDP connections
25
DNS requests
15
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
920 | iexplore.exe | GET | 301 | 92.123.195.121:80 | http://shell.windows.com/fileassoc/fileassoc.asp?Ext=2%4081_313019%5b1%5d | unknown | — | — | whitelisted |
2444 | iexplore.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | US | der | 471 b | whitelisted |
920 | iexplore.exe | GET | 200 | 93.184.220.29:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTBL0V27RVZ7LBduom%2FnYB45SPUEwQU5Z1ZMIJHWMys%2BghUNoZ7OrUETfACEA8Ull8gIGmZT9XHrHiJQeI%3D | US | der | 1.47 Kb | whitelisted |
920 | iexplore.exe | GET | 200 | 42.249.218.79:80 | http://down10d.zol.com.cn/zoldownload_os/YoudaoDict8.6.2@81_313019.exe/ | CN | executable | 1.49 Mb | malicious |
920 | iexplore.exe | GET | 200 | 67.27.158.254:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?c5452ec078a5ec59 | US | compressed | 4.70 Kb | whitelisted |
920 | iexplore.exe | GET | 200 | 67.27.158.254:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?f8de64aefa9366de | US | compressed | 4.70 Kb | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
920 | iexplore.exe | 104.92.93.19:443 | go.microsoft.com | Akamai Technologies, Inc. | NL | unknown |
920 | iexplore.exe | 42.249.218.79:80 | down10d.zol.com.cn | No.31,Jin-rong Street | CN | suspicious |
920 | iexplore.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
920 | iexplore.exe | 92.123.195.121:80 | shell.windows.com | Akamai International B.V. | — | suspicious |
920 | iexplore.exe | 13.107.21.200:443 | www.bing.com | Microsoft Corporation | US | whitelisted |
2444 | iexplore.exe | 13.107.21.200:443 | www.bing.com | Microsoft Corporation | US | whitelisted |
920 | iexplore.exe | 40.126.32.138:443 | login.microsoftonline.com | Microsoft Corporation | US | whitelisted |
2444 | iexplore.exe | 152.199.19.161:443 | iecvlist.microsoft.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
2444 | iexplore.exe | 93.184.220.29:80 | ocsp.digicert.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
920 | iexplore.exe | 67.27.158.254:80 | ctldl.windowsupdate.com | Level 3 Communications, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
down10d.zol.com.cn |
| malicious |
go.microsoft.com |
| whitelisted |
ctldl.windowsupdate.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
shell.windows.com |
| whitelisted |
www.bing.com |
| whitelisted |
iecvlist.microsoft.com |
| whitelisted |
r20swj13mr.microsoft.com |
| whitelisted |
login.microsoftonline.com |
| whitelisted |
login.live.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
920 | iexplore.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |