Red Sky Alliance monthly queries our backend databases, identifying all new data containing Motor Vessel (MV) and Motor Tanker (MT) in the subject line of malicious emails. Malicious actors use emails with Motor Vessel (MV) or Motor Tanker (MT) in the subject line as a lure to entice users in the maritime industry to open emails containing malicious attachments. Red Sky Alliance is providing this list of Motor Vessels in which we directly observed the vessel being impersonated, with associated malicious emails. The identified emails attempted to deliver malware or phishing links to compromise the vessels, parent companies, ports and the entire Transportation Supply Chain. Full report available here.
Significant Vessel Keys Words:
Figure 1. Map displaying location of attacker domains
Figure 2. Map displaying location of victim domains
Figure 3. Distribution of attacker and target domains
Common Transportation Attack Chain Overview
Table 1: List of dates, subject lines, malware detections, and sender data seen in Red Sky Alliance’s malicious email collection from last 30 days. Information extrapolated from the Subject Line. Full table attached.
Analysis
The five most common subject lines seen in our recent query are as follows:
- Maersk : Arrival Notice ready for Bill of Lading 209530072.
- [External Mail] AGENCY APPOINTMENT // PDA REQUEST
- Maersk Line: B/L DRAFT & P/L & Invoice
- Material For shipment / Maersk-Line-Logistic
- B/L-DOCUMENT FROM MAERSK-LINE LOGISTICS
There are several themes generally represented by the subject lines seen. Specifically, in this month’s query we see primarily notifications for documents, shipments, and invoices. These emails are seen to utilize common terminology to establish credibility. This credibility can make for a solid lure. In terms of the sending emails themselves, we can see impersonations of companies in many industries. In our most recent query, we saw an Italian bakery equipment manufacturer, a behavioral health assessment company in Rhode Island, multiple shipping companies, a Chinese logistics brokerage, and a Chinese email provider.
In addition to impersonating these companies and various types of communication, these emails are also seen to be impersonating specific vessels. Some of the vessels we have seen being impersonated by these emails in recent weeks include the following:
- Cosco Shipping Alps (pictured above), which is a cargo ship currently en route to Kaohsiung, Taiwan and is sailing under the flag of Hong Kong.
- TOI Challenger (pictured below), which is a general cargo ship currently en located in Bari, Italy and is sailing under the flag of Liberia.
As one might expect, fabricating a vessel name is not difficult, but using a real ship’s name does not take much effort and could result in an increase of credibility.
The top five most prevalent malware detections associated with these emails are as follows:
- Ks.Malware.249 – Kingsoft
- JS/Cryxos.8405!tr – Fortinet
- UDS:DangerousObject.Multi.Generic – Kaspersky
- Trojan:MSIL/SnakeKeyLogger.RDAN!MTB – Microsoft
- EML/Phishing.3FC3!tr - Fortinet
Script.Ks.Malware detections we have been seeing since April of this year. As we have previously mentioned, this detection is worthy of further investigation given that this detection often happens as a false positive from Kingsoft. JS/Cryxos detections we have seen since early 2020, with the highest detection numbers occurring in April of 2021. UDS:DangerousObject.Multi detections we have seen off and on since 2018. This detection appeared more consistently throughout 2022. This detection has been reported as a false positive in some cases and can be associated with games that use code injection techniques. Trojan:MSIL/SnakeKeyLogger, as the name implies, is a keylogger malware that is typically spread via phishing. We have seen this detection since early 2021, with the heaviest rate of detection occurring in March of 2021. EML/Phishing is a fairly recent detection that we have only been seeing since September of last year.
Vessel Flag of Convenience – All shipping size vessels which fall under international law, must fly a country flag where it is registered. The flag of convenience (FOC) is the system that allows the vessel owners to avoid burdensome international legal regulations. When the ships are involved in this system, they are not connected to the laws of the countries where they are registered. The top five (5) flag states with the largest number of registered vessels are: Panama, Liberia, Marshall Islands, Hong Kong and Singapore.[1]
Supply Chain Spoofing: In 2023, our analyst began looking into the transportation supply chain, as often these transportation companies are used to gain cyber access to valuable targets. Maritime shipping is just one portion of the entire commercial transportation supply chain. By querying our data with numerous important supply chain keywords, we can also extract some more general supply chain related malicious emails. The five most prevalent subject lines seen with a general supply chain focus are as follows:
- FW: Arrival Notice / Shipping Documents / Original BL, Invoice & Packing List
- PLEASE FIND THE ATTACHED PURCHASE ORDER URGENTLY NEEDED.
- Al Rouba Purchase Order MO2101358-2022.
- DHL AWB Arrival Notice #91773.
- Fwd: Re: PO Invoice XJ210821Q PR 45258
Much like maritime related emails, we can see several themes emerge in the subject lines of these malicious emails. Most prevalently in the last month, we can see invoice notifications, purchase orders, and shipping document notifications. These emails can also contain impersonations of companies in many industries. In our most recent query, we saw a Saudi Arabian catering company, multiple shipping companies, a cyber security consulting agency, a Malaysian metal forger, and an Asian electronics manufacturer.
The five most prevalent detections associated with these emails are as follows:
- Ks.Malware.249 – Kingsoft
- HTML.Doc – Ikarus
- HEUR:Trojan.Script.Generic – ZoneAlarm
- HTML:Phishing-CTV [Phish] – Avast
- HTML/Phishing.Gen - ESET-NOD32
As is generally the case with supply chain detections, the majority of what we see is generic trojans with a preference towards phishing operations. Phishing.HTML.Doc and its variants we have seen since 2016 with detection spikes occurring in early 2021 and the summer of 2022. Phishing.HTML.Doc, HEUR:Trojan.Script.Generic, HTML:Phishing-CTV, and HTML/Phishing.Gen can all represent the same detection, depending on which vendor is reporting the detection.
Table 2: List of dates, subject lines, malware detections, and sender data seen in Red Sky Alliance’s malicious email collection from last 30 days. Information extrapolated from the Subject Line. Full table attached.
Closing: These analytical results illustrate how a recipient could be fooled into opening an infected email and what sorts of dangers can accompany these emails. It is common for attackers to specifically target pieces of a company’s supply chain to build up cyber-attacks targeting larger companies. Doing so could cause the recipient to become an infected member of the maritime supply chain and thus possibly infect victim vessels, port facilities and/or shore companies in the marine, agricultural, and other industries with additional malware. With approximately 90% of products being shipped in the maritime related supply chain, this is a serious cyber matter.
Fraudulent emails designed to make recipients hand over sensitive information, extort money, or trigger malware installation on shore-based or vessel IT networks remains one of the biggest day-to-day cyber threats facing the maritime industry and associated transportation supply line. These threats often carry a financial liability to one or all those involved in the Transportation Supply Chain. Preventative cyber protection offers a strong first-line defense by preventing deceptive messages from ever reaching staff inboxes, but malicious hackers are daily developing new techniques to evade current detection. This supports our recommendation of daily cyber diligence.
The more convincing an email appears, the greater the chance employees will fall victim to a scam. To address this residual risk, software-based protection should be treated as one constituent of a wider strategy that also encompasses the human-element as well as organizational workflows and procedures.
It is important to:
- Train all levels of the marine supply chain to realize they are under constant cyber-attack.
- Emphasize maintaining constant attention to real-world cyber consequences of careless cyber practices or general inattentiveness.
- Provide practical guidance on how to identify a potential phishing attempt.
- Use direct communication to verify emails and supply chain email communication.
About Red Sky Alliance
Red Sky Alliance strongly recommends ongoing monitoring from both internal and external perspectives. Internal monitoring is common practice. However, external threats are often overlooked and can represent an early warning of impending cyber-attacks. Red Sky Alliance can provide both internal monitoring in tandem with RedXray notifications on external threats to include, botnet activity, public data breaches, phishing, fraud, and general targeting. All emails connected to the Transportation Supply Chain, to include Vessels, should be viewed with scrutiny.
Red Sky Alliance is in New Boston, NH USA. We are a Cyber Threat Analysis and Intelligence Service organization. We have been tracking vessel impersonation for over 5 years (and maintain historical reports). For questions, comments or assistance, please contact the lab directly at 1-844-492-7225, or feedback@wapacklabs.com
- Reporting: https://www.redskyalliance.org/
- Website: https://www.wapacklabs.com/
- LinkedIn: https://www.linkedin.com/company/64265941
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