Advanced persistent threat (APT) campaign aims to steal sensitive information form corporations doing business in China.
The malware GoldenSpy was observed by Trustwave SpiderLabs in a threat-hunting operation on behalf of it’s the UK Technology-based client.
Trustwave observed that since April 2020, the GoldenSpy backdoor found to be embedded in the Aisino Intelligent Tax software suite.
The tax software suite is mandatory for a corporation operating in China to conduct business, this software suite that would enable payment of local taxes.
The file was downloaded from the URL download.ningzhidata[.]com, Svm.exe(GoldenSpy) is responsible for gathering information and sends data to www.ningzhidata[.]com via port 9006.
Both the files svm and svmm are installed as autostart services nad they operate with System-level privileges if the process killed it will get restarts automatically.
“At this point, we are unable to determine how widespread this software is. We currently know of one targeted technology/software vendor and a highly similar incident occurring at a major financial institution, but this could be leveraged against countless companies operating and paying taxes in China or may be targeted at only a select few organizations with access to vital information,” reads the report .
GoldenSpy (svm.exe) communicates with ningzhidata[.]com for sending data and to receive commands, researchers observed that “domain and its subdomains have resolved to a number of IP addresses, however, based on their certificates, most are a part of the qcloud CDN and appear to only host download.”
Following are the ports used in communication
Trustwave SpiderLabs published a complete report along with IOC’s, organizations operating with China are recommended to investigate the network connections.
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