Friday, July 19, 2024
EHA

Chinese APT 10 Hackers Attack Government and Private Organizations Through Previously Unknown Malware

Researchers discovered a new malware attacker against the government and private organizations from Chinese cyber espionage group APT10 using previously unknown malware with a new set of unique activities.

Based on telemetry data, attackers launching two different loader variants and various other payloads with similar Tactics, Techniques that were used for other attacks by APT10.

APT10 hacking group is targeting mostly commercial activities including aviation, satellite and maritime technology, industrial factory automation, automotive supplies, laboratory instruments, banking, and finance industries.

Recently, two Chinese hackers who are behind the APT10 hacking Group charged for compromising intellectual property and confidential business information from government agencies NASA & other 45 US Tech giants.

Threat actors using typosquatting domain names similar to real, legitimate tech companies to trick victims and inject the payload to the target machine.

APT10 Malware Infection Process

Initially, Once the dropper variants entered into the system, they deliver different payloads with the help of following files.

  • jjs.exe – legitimate executable
  • jli.dll – malicious DLL
  • msvcrt100.dll – legitimate Microsoft C Runtime DLL
  • svchost.bin – binary file

Researchers also discovered PlugX and Quasar, two different Remote Access Trojans among these variants.

“PlugX is a modular structured malware that has many different operational plugins such as communication compression and encryption, network enumeration, files interaction, remote shell operations and more.”

During the first stage of the infection process, a loader starts abusing the legitimate executable process (  jjs.exe ) and inject the malicious DLL inside, a method is known as DLL Side-Loading.

APT10
 Loader’s execution flow

According to Ensilo Research, “The malicious DLL maps the data file, svchost.bin, to memory and decrypt it. The decrypted content is a shellcode that is injected into svchost.exe and contains the actual malicious payload.”

The first variant delivers both PlugX and Quasar and the downloaded payload is a modified Quasar RAT to extract passwords from the victim machine using an addition called SharpSploit , a .NET post-exploitation library written in C#.

Another PlugX collects information about the infected machine such as the computer name, username, OS version, RAM usage, network interfaces, and resources. 

Researchers uncovered the APT10 attackers using C&C servers located in South Korea and some of the mentioned domain mappings were recently updated. Also, the certificate embedded in the Quasar sample.

IOCS

Loader v1:
41542d11abf5bf4a18332e9c4f2c8d1eb5c7e5d4298749b610d86caaa1acb62c (conhost.exe downloader jli.dll)
29b0454db88b634656a3fc7c36f318b126a83ae8fb7f73fe9ff349a8f8536c7b (conhost.exe downloader svchost.bin)
02b95ef7a33a87cc2b3b6fd47db03e711045974e1ecf631d3ba9e076e1e374e9 (PlugX jli.dll)
e0f91da52fdc61757f6a3f276ae77b01d2d1cc4b3743629c5acbd0341e5de80e (PlugX svchost.bin)

Loader v2:
f13536685206a94a8d3938266f100bb2dffa740a202283c7ea35c58e6dbbb839 (PlugX jli.dll)
c8d86e9f486d23285b744279812ef9047a0908e39656c2ea4cdf3e182f80e11d (PlugX svchost.bin)

.NET Downloader (conhost.exe):

96649c5428c874f2228c77c96526ff3f472bc2425476ad1d882a8b55faa40bf5

Quasar RAT:
0644e561225ab696a97ba9a77583dcaab4c26ef0379078c65f9ade684406eded

Domains:

update[.]kaspresksy[.]com
download[.]kaspresksy[.]com
api[.]kaspresksy[.]com
ffca[.]caibi379[.]com
update[.]microsofts[.]org
ppit[.]microsofts[.]org
cahe[.]microsofts[.]org

IP Addresses:

27.102.128.157
27.102.127.80
27.102.127.75
27.102.66.67
27.102.115.249

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep your self-updated.

Also Read:

Chinese Cyber Espionage Group APT10 Delivers UPPERCUT Backdoor Via Malicious Word Documents

Website

Latest articles

Octo Tempest Know for Attacking VMWare ESXi Servers Added RansomHub & Qilin to Its Arsenal

Threat actors often attack VMware ESXi servers since they accommodate many virtual machines, which...

TAG-100 Actors Using Open-Source Tools To Attack Gov & Private Orgs

Hackers exploit open-source tools to execute attacks because they are readily available, well-documented, and...

macOS Users Beware Of Weaponized Meeting App From North Korean Hackers

Meeting apps are often targeted and turned into weapons by hackers as they are...

Hackers Exploiting Legitimate RMM Tools With BugSleep Malware

Since October 2023, MuddyWater, which is an Iranian threat group linked to MOIS, has...

Cybercriminals Exploit Attack on Donald Trump for Crypto Scams

Researchers at Bitdefender Labs remain ever-vigilant, informing users about the latest scams and internet...

New TE.0 HTTP Request Smuggling Flaw Impacts Google Cloud Websites

HTTP Request Smuggling is a flaw in web security that is derived from variations...

Volcano Demon Group Attacking Organizations With LukaLocker Ransomware

The Volcano Demon group has been discovered spreading a new ransomware called LukaLocker, which...
Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles