13-September-2022
Welcome to the weekly threat detection update report from Stamus Networks. Each week, you will receive this email with a summary of the updates.
Current Stamus Threat Intelligence (STI) release version: 544
This week, in addition to daily ruleset and IOC updates, we provided Stamus Security Platform customers with the following improved defense(s):
Note: a "method" as referenced below, is a discrete detection vector for a given threat.
The following detections were added to your Stamus NDR this past week:
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
Nitrokod is a malicious program that operates as a backdoor for cryptocurrency mining malware. At the time of writing, Nitrokod was designed to infect systems with the XMRIG cryptominer.
It is noteworthy that Nitrokod has been actively spread via malicious applications disguised as legitimate software, most successfully through a trojanized app presented as Google Translate Desktop. According to Check Point Research, Nitrokod is used by Turkish-speaking cyber criminals, and it has infected devices throughout eleven countries. Pcrisk
Nitrokod - checkpoint |
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
Caypnamer - microsoft |
Proofpoint researchers observed a phishing campaign impersonating the World Health Organization’s (WHO) guidance on COVID-19 critical preparedness to deliver a new malware family that researchers have dubbed Sepulcher. This campaign targeted European diplomatic and legislative bodies, non-profit policy research organizations, and global organizations dealing with economic affairs. Additionally, a sender email identified in this campaign has been linked to historic Chinese APT targeting of the international Tibetan community using payloads linked to LuckyCat malware. Subsequently, a phishing campaign from July 2020 targeting Tibetan dissidents was identified delivering the same strain of Sepulcher malware. Operator email accounts identified in this campaign have been publicly linked to historic Chinese APT campaigns targeting the Tibetan community delivering ExileRAT malware. Based on the use of publicly known sender addresses associated with Tibetan dissident targeting and the delivery of Sepulcher malware payloads, Proofpoint researchers have attributed both campaigns to the APT actor TA413, which has previously been documented in association with ExileRAT. The usage of publicly known Tibetan-themed sender accounts to deliver Sepulcher malware demonstrates a short-term realignment of TA413’s targets of interest. While best known for their campaigns against the Tibetan diaspora, this APT group associated with the Chinese state interest prioritized intelligence collection around Western economies reeling from COVID-19 in March 2020 before resuming more conventional targeting later this year.
TA413 - proofpoint | TA413 - proofpoint 2 | TA413 - malpedia |
The following detections were updated this past week with changes to kill chain phase(s) or MITRE ATT&CK tactic(s)/technique(s):
Ave Maria is high-risk trojan designed to steal various information and to cause "chain infections" (spread other infections). It is typically proliferated using various spam email campaigns. Criminals send thousands of deceptive emails that contain infectious attachments, most of which are Microsoft Office (typically Excel) files. Emails are delivered with messages encouraging users to open the attached document, however, this results in infiltration of Ave Maria Pcrisk
The term info stealer is self-explanatory. This type of malware resides in an infected computer and gathers data in order to send it to the attacker. Typical targets are credentials used in online banking services, social media sites, emails, or FTP accounts.
Info stealers may use many methods of data acquisition. The most common are:
hooking browsers (and sometimes other applications) and stealing credentials that are typed by the user using web injection scripts that are adding extra fields to web forms and submitting information from them to a server owned by the attacker form grabbing (finding specific opened windows and stealing their content) keylogging stealing passwords saved in the system and cookies Modern info stealers are usually parts of botnets. Sometimes the target of attack and related events are configured remotely by the command sent from the Command and Control server (C&C). Malwarebytes
APT17 is a China-based threat group that has conducted network intrusions against U.S. government entities, the defense industry, law firms, information technology companies, mining companies, and non-government organizations. MITRE
Erbium is a piece of malicious software classified as a stealer. Malware within this category is designed to extract vulnerable data from infected devices. Our researchers discovered Erbium while inspecting malware-selling hotspots. Pcrisk
ESET has analyzed the operations of Evilnum, the APT group behind the Evilnum malware previously seen in attacks against financial technology companies. While said malware has been seen in the wild since at least 2018 and documented previously, little has been published about the group behind it and how it operates. The group’s targets remain fintech companies, but its toolset and infrastructure have evolved and now consist of a mix of custom, homemade malware combined with tools purchased from Golden Chickens, a Malware-as-a-Service (MaaS) provider whose infamous customers include FIN6 and Cobalt Group. Malpedia
Gamaredon Group is a threat group that has been active since at least 2013 and has targeted individuals likely involved in the Ukrainian government. The name Gamaredon Group comes from a misspelling of the word "Armageddon", which was detected in the adversary's early campaigns. MITRE
Trojan-Banker programs are designed to steal user account data relating to online banking systems, e-payment systems and plastic card systems. The data is then transmitted to the malicious user controlling the Trojan. Email, FTP, the web (including data in a request), or other methods may be used to transit the stolen data. Kaspersky
QAKBOT or QBOT is a malware that is capable of monitoring the browsing activities of the infected computer and logs all information related to finance-related websites.
Trendmicro
Remcos is a closed-source tool that is marketed as a remote control and surveillance software by a company called Breaking Security.
Remcos has been observed being used in malware campaigns.
A Trojan horse or Trojan is a type of malware that is often disguised as legitimate software. Trojans can be employed by cyber-thieves and hackers trying to gain access to users' systems. Users are typically tricked by some form of social engineering into loading and executing Trojans on their systems. Once activated, Trojans can enable cyber-criminals to spy on you, steal your sensitive data, and gain backdoor access to your system. Kaspersky
It leverages compromised websites and performs some of the most creative fingerprinting checks we’ve seen, before delivering its payload (NetSupport RAT). Malwarebytes
DPRK APT actor tracked by Proofpoint as TA444 Malpedia
A dropper is a kind of Trojan that has been designed to "install" some sort of malware (virus, backdoor, etc.) to a target system. The malware code can be contained within the dropper (single-stage) in such a way as to avoid detection by virus scanners or the dropper may download the malware to the target machine once activated (two stage). Wikipedia
Malicious programs of this family secretly send information to the criminal from the user’s infected Android mobile device. Kaspersky
Stealer: The term info stealer is self-explanatory. This type of malware resides in an infected computer and gathers data in order to send it to the attacker. Typical targets are credentials used in online banking services, social media sites, emails, or FTP accounts.
Info stealers may use many methods of data acquisition. The most common are:
hooking browsers (and sometimes other applications) and stealing credentials that are typed by the user using web injection scripts that are adding extra fields to web forms and submitting information from them to a server owned by the attacker form grabbing (finding specific opened windows and stealing their content) keylogging stealing passwords saved in the system and cookies Modern info stealers are usually parts of botnets. Sometimes the target of attack and related events are configured remotely by the command sent from the Command and Control server (C&C). Malwarebytes
The following threat detection(s) were improved this past week with new or updated threat methods.
| Name of threat | New coverage | Total coverage | Last updated | ||||
|---|---|---|---|---|---|---|---|
| New Detection methods | Kill chain phases | Protocols involved | Detection methods | Kill chain phases | Protocols involved | ||
| AveMaria RAT | 22 | command and control, actions on objectives | tcp-pkt | 50 | actions on objectives, command and control | dns, http, tcp, tcp-pkt | 2022-09-10 |
| Banker Stealer | 4 | command and control | dns, http | 197 | actions on objectives, command and control, delivery | dns, http, smtp, tcp, tls | 2022-09-10 |
| Bitter | 3 | command and control | dns | 36 | actions on objectives, command and control, delivery | dns, http, tcp, tcp-pkt | 2022-09-09 |
| Caypnamer | 4 | command and control | tcp-pkt, http | 4 | command and control | tcp-pkt, http | 2022-09-06 |
| Erbium | 4 | command and control | http, dns, tls | 9 | command and control | dns, http, tls | 2022-09-07 |
| Evilnum | 1 | command and control | dns | 55 | actions on objectives, command and control, delivery | dns, http, tls | 2022-09-07 |
| Gamaredon | 1 | command and control | http | 104 | actions on objectives, command and control, delivery | dns, http | 2022-09-09 |
| Hqwar | 4 | command and control | dns | 45 | actions on objectives, command and control | dns, http, tls | 2022-09-10 |
| IRATA | 5 | command and control, actions on objectives | dns, tls, http | 5 | command and control, actions on objectives | dns, tls, http | 2022-09-06 |
| Nitrokod | 6 | command and control | dns, tls | 6 | command and control | dns, tls | 2022-09-06 |
| QakBot | 1 | command and control | http | 27 | actions on objectives, command and control, delivery | ftp, http, tcp, tls | 2022-09-09 |
| Remcos | 2 | command and control | tcp | 851 | command and control, delivery | dns, http, tcp, tcp-pkt | 2022-09-08 |
| Small | 1 | command and control | http | 51 | actions on objectives, command and control, delivery | ftp, http, tcp, tcp-pkt, tls | 2022-09-07 |
| SocGholish | 7 | command and control, delivery, actions on objectives | dns, http, tls | 104 | actions on objectives, command and control, delivery, reconnaissance | dns, http, tcp, tls | 2022-09-10 |
| TA413 | 7 | command and control | http, tls, dns | 8 | command and control | http, tls, dns | 2022-09-06 |
| TA444 | 10 | command and control | dns, tls | 61 | command and control | dns, http, tls | 2022-09-10 |
| Telman | 3 | command and control, actions on objectives | http, tcp | 3 | command and control, actions on objectives | http, tcp | 2022-09-06 |
| Trojan Dropper | 1 | command and control | http | 272 | actions on objectives, command and control, delivery, installation | dns, http, tcp, tls, udp | 2022-09-10 |
| TrojanSpy-Android | 8 | command and control | http, dns, tcp | 391 | actions on objectives, command and control, delivery | dns, http, tcp, tls | 2022-09-10 |
| TrojanSpy-Generic | 1 | command and control | tcp | 74 | actions on objectives, command and control, delivery | http, tcp, tcp-pkt, tls | 2022-09-10 |
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Stamus Networks believes in a world where defenders are heroes, and a future where those they protect remain safe. As organizations face threats from well-funded adversaries, we relentlessly pursue solutions that make the defender’s job easier and more impactful. The global leader in Suricata-based network security solutions, Stamus Networks helps enterprise security teams know more, respond sooner and mitigate their risk with insights gathered from cloud and on-premise network activity. Our Stamus Security Platform combines the best of intrusion detection (IDS), network security monitoring (NSM), and network detection and response (NDR) systems into a single solution that exposes serious and imminent threats to critical assets and empowers rapid response.
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