| File name: | korea.exe |
| Full analysis: | https://app.any.run/tasks/1cdc3395-1904-4184-9ce2-038c1b8ef864 |
| 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 02, 2024, 14:59:50 |
| 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: | D041FF2E1D6F7A263D3E84B8254E9C43 |
| SHA1: | 09F06DF92D72E4412CF75A72E2C448AD4D6A5E79 |
| SHA256: | F7E644D6657F21A224D1BB00983686E72F469F0B587B03837047AEF49EA740AA |
| SSDEEP: | 1536:TSSIOOUD+VCpSPbRMFMTIbbmwON3UcuWyDpqKmY7:TSSIOODVCpSPbOFMTIbbmRwgz |
MALICIOUS
Drops the executable file immediately after the start
- korea.exe (PID: 3416)
ASYNCRAT has been detected (SURICATA)
- korea.exe (PID: 3416)
ASYNCRAT has been detected (YARA)
- korea.exe (PID: 3416)
SUSPICIOUS
Reads settings of System Certificates
- korea.exe (PID: 3416)
Reads the Internet Settings
- korea.exe (PID: 3416)
Contacting a server suspected of hosting an CnC
- korea.exe (PID: 3416)
Connects to unusual port
- korea.exe (PID: 3416)
INFO
Checks supported languages
- korea.exe (PID: 3416)
- wmpnscfg.exe (PID: 2100)
Reads the computer name
- korea.exe (PID: 3416)
- wmpnscfg.exe (PID: 2100)
Reads the machine GUID from the registry
- korea.exe (PID: 3416)
Reads Environment values
- korea.exe (PID: 3416)
Reads the software policy settings
- korea.exe (PID: 3416)
Create files in a temporary directory
- korea.exe (PID: 3416)
Manual execution by a user
- wmpnscfg.exe (PID: 2100)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
AsyncRat
(PID) Process(3416) korea.exe
C2 (1)198.12.66.100
Ports (1)4443
Version5.0.5
Options
AutoRunfalse
MutexVenom_RAT_HVNC_Mutex_Venom RAT_HVNC
InstallFolder%AppData%
Certificates
Cert1MIICMzCCAZygAwIBAgIVALgbuadTIXCBGx92qk2Pt658vf8pMA0GCSqGSIb3DQEBDQUAMGcxGDAWBgNVBAMMD1Zlbm9tUkFUIFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIxMDExMjE3MzIzNloXDTMxMTAyMjE3MzIzNlowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQAD...
Server_SignatureXVGmCUJj85r0y+VedH0XyoImhyv60/WimXxSAkeQCoM1ADow6i+5Cjk65I6cCwsZmObHsPo4y+B396Tr3OltXraNcbh6c+gdbqQFM4pRYINcj9ZJMLfZ/QjI/LJ5YWLKqgcRrkn/3fk+fhPTMF6E64TK2Gxjf129BQuwg1+ctTE=
Keys
AES58ce1104379ee3a29ce571510a6d5bae0ce1f5f7f0d80bb93efbbfe674811ac2
SaltVenomByVenom
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2022:04:02 11:47:30+00:00 |
| ImageFileCharacteristics: | Executable |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 59904 |
| InitializedDataSize: | 4096 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1099e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 5.0.5.0 |
| ProductVersionNumber: | 5.0.5.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Venom RAT + HVNC |
| FileVersion: | 5.0.5 |
| InternalName: | Client.exe |
| LegalCopyright: | Copyright © 2022 |
| LegalTrademarks: | - |
| OriginalFileName: | Client.exe |
| ProductName: | Venom |
| ProductVersion: | 5.0.5 |
| AssemblyVersion: | 5.0.5.0 |
Total processes
39
Monitored processes
2
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2100 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) | ||||
| 3416 | "C:\Users\admin\AppData\Local\Temp\korea.exe" | C:\Users\admin\AppData\Local\Temp\korea.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Description: Venom RAT + HVNC Version: 5.0.5 AsyncRat(PID) Process(3416) korea.exe C2 (1)198.12.66.100 Ports (1)4443 Version5.0.5 Options AutoRunfalse MutexVenom_RAT_HVNC_Mutex_Venom RAT_HVNC InstallFolder%AppData% Certificates Cert1MIICMzCCAZygAwIBAgIVALgbuadTIXCBGx92qk2Pt658vf8pMA0GCSqGSIb3DQEBDQUAMGcxGDAWBgNVBAMMD1Zlbm9tUkFUIFNlcnZlcjETMBEGA1UECwwKcXdxZGFuY2h1bjEcMBoGA1UECgwTRGNSYXQgQnkgcXdxZGFuY2h1bjELMAkGA1UEBwwCU0gxCzAJBgNVBAYTAkNOMB4XDTIxMDExMjE3MzIzNloXDTMxMTAyMjE3MzIzNlowEDEOMAwGA1UEAwwFRGNSYXQwgZ8wDQYJKoZIhvcNAQEBBQAD... Server_SignatureXVGmCUJj85r0y+VedH0XyoImhyv60/WimXxSAkeQCoM1ADow6i+5Cjk65I6cCwsZmObHsPo4y+B396Tr3OltXraNcbh6c+gdbqQFM4pRYINcj9ZJMLfZ/QjI/LJ5YWLKqgcRrkn/3fk+fhPTMF6E64TK2Gxjf129BQuwg1+ctTE= Keys AES58ce1104379ee3a29ce571510a6d5bae0ce1f5f7f0d80bb93efbbfe674811ac2 SaltVenomByVenom | ||||
Total events
0
Read events
0
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
3
Text files
0
Unknown types
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3416 | korea.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506 | compressed | |
MD5:49AEBF8CBD62D92AC215B2923FB1B9F5 | SHA256:B33EFCB95235B98B48508E019AFA4B7655E80CF071DEFABD8B2123FC8B29307F | |||
| 3416 | korea.exe | C:\Users\admin\AppData\Local\Temp\CabF74D.tmp | compressed | |
MD5:49AEBF8CBD62D92AC215B2923FB1B9F5 | SHA256:B33EFCB95235B98B48508E019AFA4B7655E80CF071DEFABD8B2123FC8B29307F | |||
| 3416 | korea.exe | C:\Users\admin\AppData\Local\Temp\TarF74E.tmp | cat | |
MD5:4EA6026CF93EC6338144661BF1202CD1 | SHA256:8EFBC21559EF8B1BCF526800D8070BAAD42474CE7198E26FA771DBB41A76B1D8 | |||
| 3416 | korea.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506 | binary | |
MD5:4F6E1ADDC79E85CE4F33124E0E43C022 | SHA256:FDFD8E0BB78D9045AD526A50A85EAFD5FF727C176202C14B092C0BF98BB17D31 | |||
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
6
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3416 | korea.exe | GET | 200 | 23.50.131.200:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?d068838e968d89a4 | unknown | — | — | unknown |
1372 | svchost.exe | GET | 304 | 23.50.131.216:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?33775f6043c93e33 | unknown | — | — | unknown |
1060 | svchost.exe | GET | 304 | 93.184.221.240:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?fbe613066ac7852b | unknown | — | — | unknown |
1372 | svchost.exe | GET | 200 | 23.48.23.143:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | 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 |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1372 | svchost.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1060 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
3416 | korea.exe | 198.12.66.100:4443 | — | AS-COLOCROSSING | US | unknown |
3416 | korea.exe | 23.50.131.200:80 | ctldl.windowsupdate.com | Akamai International B.V. | DE | unknown |
1372 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1372 | svchost.exe | 23.50.131.216:80 | ctldl.windowsupdate.com | Akamai International B.V. | DE | unknown |
1372 | svchost.exe | 23.48.23.143:80 | crl.microsoft.com | Akamai International B.V. | DE | unknown |
1372 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ctldl.windowsupdate.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3416 | korea.exe | Domain Observed Used for C2 Detected | REMOTE [ANY.RUN] AsyncRAT SSL certificate |
3416 | korea.exe | Domain Observed Used for C2 Detected | ET MALWARE Observed Malicious SSL Cert (VenomRAT) |
3416 | korea.exe | Malware Command and Control Activity Detected | REMOTE [ANY.RUN] AsyncRAT Successful Connection |