| File name: | svchost.exe |
| Full analysis: | https://app.any.run/tasks/e44a06d9-86db-4c52-afb3-3771ed6ba8c4 |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | July 05, 2024, 16:43:41 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | EB832AE2167C56357D44CE99F5DC9FB3 |
| SHA1: | 14A8CCA3967B17960F30870CF723A0A5A51DBC7A |
| SHA256: | 77372CF028DBA71B9AC8969E875404FEF26B9BB4616B4C05ACAD4D8AA6FEF2EA |
| SSDEEP: | 1536:lJWM3wdT4YiqLVAb4RMv6r5Db6gaMNH4QJCZYuWmex:lJWM3wdT4YfnMvGdb6gajYTx |
MALICIOUS
Drops the executable file immediately after the start
- svchost.exe (PID: 3344)
Changes the autorun value in the registry
- svchost.exe (PID: 3344)
ASYNCRAT has been detected (SURICATA)
- svchost.ext.exe (PID: 2732)
ASYNCRAT has been detected (YARA)
- svchost.ext.exe (PID: 2732)
SUSPICIOUS
Starts CMD.EXE for commands execution
- svchost.exe (PID: 3344)
Executing commands from a ".bat" file
- svchost.exe (PID: 3344)
Executable content was dropped or overwritten
- svchost.exe (PID: 3344)
Uses TIMEOUT.EXE to delay execution
- cmd.exe (PID: 3432)
The executable file from the user directory is run by the CMD process
- svchost.ext.exe (PID: 2732)
Reads settings of System Certificates
- svchost.ext.exe (PID: 2732)
Contacting a server suspected of hosting an CnC
- svchost.ext.exe (PID: 2732)
Reads the Internet Settings
- svchost.ext.exe (PID: 2732)
INFO
Creates files or folders in the user directory
- svchost.exe (PID: 3344)
Reads the computer name
- svchost.exe (PID: 3344)
- svchost.ext.exe (PID: 2732)
Reads the machine GUID from the registry
- svchost.exe (PID: 3344)
- svchost.ext.exe (PID: 2732)
Checks supported languages
- svchost.exe (PID: 3344)
- svchost.ext.exe (PID: 2732)
Create files in a temporary directory
- svchost.exe (PID: 3344)
- svchost.ext.exe (PID: 2732)
Reads Environment values
- svchost.ext.exe (PID: 2732)
Reads the software policy settings
- svchost.ext.exe (PID: 2732)
Manual execution by a user
- verclsid.exe (PID: 2440)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
AsyncRat
(PID) Process(2732) svchost.ext.exe
C2 (1)chaubohack97.ddns.net
Ports (1)8080
Version0.5.8
BotnetDefault
Options
AutoRuntrue
Mutexni6jbG249Kdv
InstallFolder%AppData%
BSoDtrue
AntiVMtrue
Certificates
Cert1MIIE8jCCAtqgAwIBAgIQAMn1CCYctb9Paxrj9ANnDTANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjEwMzEwMTUzNzM2WhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAIbChE+ByIDzuhR1BxztFZeh83K9tZZnQ9Q6HgsuEi0cSJztY57sDtVzLQnbr/DZ9i4Eez1n/CLi...
Server_SignatureLQh85W3ruYyoOPe7rHpMvxv3BGNNLtA0OTXQv4gVYppfCeOb2aGWN7UYE2uHtWmSgECo/p+LibP00aD97G35rqwnD17rVfC2kjQNAph340i47YqsW//f7qOghREWOoc4zN/tirtxH+9rYz6d8uoI/sir60w2T9ubtcbFLDwuTMJZXiTL8QefD6U/B5Cua11jC/kcf2lWV6varrPv5A0TRB79qvi65Vn77L4W6jz7xUjvr6eGu0p1YRuZwoAaRti7zC9iEjhe6V54tcvcUD5KXbd0SecAhKCbfKyTBmP+ljpX...
Keys
AES269cf5fff1a76ad9102e9f43054222118b0d729e9964619d4d73a01d20ab3a44
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:10:16 21:40:53+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 45568 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xd06e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Stub.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | Stub.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
45
Monitored processes
5
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2440 | "C:\Windows\system32\verclsid.exe" /S /C {0B2C9183-C9FA-4C53-AE21-C900B0C39965} /I {0C733A8A-2A1C-11CE-ADE5-00AA0044773D} /X 0x401 | C:\Windows\System32\verclsid.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Extension CLSID Verification Host Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2732 | "C:\Users\admin\AppData\Roaming\svchost.ext.exe" | C:\Users\admin\AppData\Roaming\svchost.ext.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Version: 1.0.0.0 Modules
AsyncRat(PID) Process(2732) svchost.ext.exe C2 (1)chaubohack97.ddns.net Ports (1)8080 Version0.5.8 BotnetDefault Options AutoRuntrue Mutexni6jbG249Kdv InstallFolder%AppData% BSoDtrue AntiVMtrue Certificates Cert1MIIE8jCCAtqgAwIBAgIQAMn1CCYctb9Paxrj9ANnDTANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjEwMzEwMTUzNzM2WhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAIbChE+ByIDzuhR1BxztFZeh83K9tZZnQ9Q6HgsuEi0cSJztY57sDtVzLQnbr/DZ9i4Eez1n/CLi... Server_SignatureLQh85W3ruYyoOPe7rHpMvxv3BGNNLtA0OTXQv4gVYppfCeOb2aGWN7UYE2uHtWmSgECo/p+LibP00aD97G35rqwnD17rVfC2kjQNAph340i47YqsW//f7qOghREWOoc4zN/tirtxH+9rYz6d8uoI/sir60w2T9ubtcbFLDwuTMJZXiTL8QefD6U/B5Cua11jC/kcf2lWV6varrPv5A0TRB79qvi65Vn77L4W6jz7xUjvr6eGu0p1YRuZwoAaRti7zC9iEjhe6V54tcvcUD5KXbd0SecAhKCbfKyTBmP+ljpX... Keys AES269cf5fff1a76ad9102e9f43054222118b0d729e9964619d4d73a01d20ab3a44 Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941 | |||||||||||||||
| 3308 | timeout 3 | C:\Windows\System32\timeout.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: timeout - pauses command processing Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3344 | "C:\Users\admin\AppData\Local\Temp\svchost.exe" | C:\Users\admin\AppData\Local\Temp\svchost.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3432 | C:\Windows\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\tmpFD29.tmp.bat"" | C:\Windows\System32\cmd.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
Total events
7 062
Read events
7 033
Write events
29
Delete events
0
Modification events
| (PID) Process: | (3344) svchost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3344) svchost.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | svchost.ext |
Value: "C:\Users\admin\AppData\Roaming\svchost.ext.exe" | |||
| (PID) Process: | (2732) svchost.ext.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\182\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
1
Suspicious files
3
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2732 | svchost.ext.exe | C:\Users\admin\AppData\Local\Temp\Tar32FF.tmp | cat | |
MD5:4EA6026CF93EC6338144661BF1202CD1 | SHA256:8EFBC21559EF8B1BCF526800D8070BAAD42474CE7198E26FA771DBB41A76B1D8 | |||
| 3344 | svchost.exe | C:\Users\admin\AppData\Local\Temp\tmpFD29.tmp.bat | text | |
MD5:0AB2E57298EA95FD46621E5B3A1980DB | SHA256:4BA723AFB88656E394F68E074750120A0097743CB0A880CA7C18F5D0AF9F00ED | |||
| 3344 | svchost.exe | C:\Users\admin\AppData\Roaming\svchost.ext.exe | executable | |
MD5:EB832AE2167C56357D44CE99F5DC9FB3 | SHA256:77372CF028DBA71B9AC8969E875404FEF26B9BB4616B4C05ACAD4D8AA6FEF2EA | |||
| 2732 | svchost.ext.exe | C:\Users\admin\AppData\Local\Temp\Cab32FE.tmp | compressed | |
MD5:49AEBF8CBD62D92AC215B2923FB1B9F5 | SHA256:B33EFCB95235B98B48508E019AFA4B7655E80CF071DEFABD8B2123FC8B29307F | |||
| 2732 | svchost.ext.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 | compressed | |
MD5:49AEBF8CBD62D92AC215B2923FB1B9F5 | SHA256:B33EFCB95235B98B48508E019AFA4B7655E80CF071DEFABD8B2123FC8B29307F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
13
DNS requests
7
Threats
6
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1372 | svchost.exe | GET | 200 | 23.48.23.156:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | unknown |
2732 | svchost.ext.exe | GET | 200 | 93.184.221.240:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?3e922149e0bdcc94 | unknown | — | — | unknown |
1372 | svchost.exe | GET | 304 | 93.184.221.240:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?33775f6043c93e33 | unknown | — | — | unknown |
1372 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | unknown |
1060 | svchost.exe | GET | 304 | 93.184.221.240:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?a9f83325acc8ca75 | unknown | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1372 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1060 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
2732 | svchost.ext.exe | 113.182.68.66:8080 | chaubohack97.ddns.net | VNPT Corp | VN | unknown |
2732 | svchost.ext.exe | 93.184.221.240:80 | ctldl.windowsupdate.com | EDGECAST | GB | whitelisted |
1372 | svchost.exe | 93.184.221.240:80 | ctldl.windowsupdate.com | EDGECAST | GB | whitelisted |
1372 | svchost.exe | 23.48.23.156:80 | crl.microsoft.com | Akamai International B.V. | DE | unknown |
1372 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | unknown |
1060 | svchost.exe | 93.184.221.240:80 | ctldl.windowsupdate.com | EDGECAST | GB | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
chaubohack97.ddns.net |
| malicious |
ctldl.windowsupdate.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
2732 | svchost.ext.exe | Domain Observed Used for C2 Detected | REMOTE [ANY.RUN] AsyncRAT SSL certificate |
2732 | svchost.ext.exe | Domain Observed Used for C2 Detected | ET MALWARE Generic AsyncRAT Style SSL Cert |
2732 | svchost.ext.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server) |
2732 | svchost.ext.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] AsyncRAT Successful Connection |
1060 | svchost.exe | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |