Security researchers at FireEye have uncovered a large-scale Chinese phishing and hacking campaign aimed at Cambodia’s elections.
The hackers distributed a remote access trojan (RAT) and data exfiltration operation targeting the poll.
FireEye found evidence of infection on systems used by election-related entities in Cambodia, including the National Election Commission, human rights advocates, an MP for the Cambodia National Rescue Party, two Cambodian diplomats in overseas posts, and some media outlets.
“FireEye has examined a range of TEMP.Periscope activity revealing extensive interest in Cambodia’s politics, with active compromises of multiple Cambodian entities related to the country’s electoral system. This includes compromises of Cambodian government entities charged with overseeing the elections, as well as the targeting of opposition figures.” reads the analysis published by FireEye.
“This campaign occurs in the run up to the country’s July 29, 2018, general elections.”
TEMP.Periscope used the same infrastructure of other campaigns against other targets, including the defense industrial base in the United States and a chemical company based in Europe.
Analyzing this campaign, FireEye found files on three open indexes operated by the attackers, in this way the company gathered information about group’s TTPs and its targets. The activity on these servers extends from at least April 2017 to the present, with the most current operations focusing on Cambodia’s government and elections.
Two servers (chemscalere[.]com and scsnewstoday[.]com) is used to operate a typical Command and Control infrastructure and hosting sites, while a third one, mlcdailynews[.]com, works as an active SCANBOX server.
SCANBOX is another APT that FireEye has monitored in various campaigns since 2015, the presence of a SCANBOX server suggested TEMP.Periscope was also planning to target individuals with an interest in US-East Asia politics, Russia, and NATO affairs in forthcoming campaigns.
The servers contain both malware and logs, the analysis of the latter revealed:
The servers were administered by operators based in Hainan (one of the IP addresses, 112.66.188[.]28, is located in Hainan, China), and experts found two new malware families hosted on them, DADBOD and EVILTECH, and other malware families detected in the past (AIRBREAK, EVILTECH, HOMEFRY, MURKYTOP, HTRAN, and SCANBOX)”.
The most active tolls of this campaign were the AIRBREAK backdoor, the HOMEFRY password cracker and dumper; the LUNCHMONEY uploader and a command line reconnaissance tool called MURKYTOP.
The experts attributed the attacks to China, other IP addresses involved in the campaign are associated with virtual private servers, but researchers noticed that artifacts indicate that the computers used to log in all cases are configured with Chinese language settings.
“The activity uncovered here offers new insight into TEMP.Periscope’s activity.” concludes FireEye. “Notably, Cambodia has served as a reliable supporter of China’s South China Sea position in international forums such as ASEAN and is an important partner. While Cambodia is rated as Authoritarian by the Economist’s Democracy Index, the recent surprise upset of the ruling party in Malaysia may motivate China to closely monitor Cambodia’s July 29 elections”
(Security Affairs – Cambodia, TEMP.Periscope)
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