Dark Web Profile: Bjorka – SOCRadar

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In the ever-evolving landscape of cyber threats, understanding the profiles of individual threat actors is crucial for both governments and private organizations to take action before major incidents happen. One such actor that has recently come into the spotlight is Bjorka, a mysterious figure responsible for a series of high-profile attacks on the Indonesian government and private sectors. This blog post aims to delve into Bjorka and get to know the actor itself. By understanding the nature of Bjorka’s activities, we can better prepare and defend against similar threats in the future.
Bjorka is a cyber threat actor whose activities have sent shockwaves through the cybersecurity community. Emerging in the last few years, Bjorka has become synonymous with high-profile hacks, leaks, and cyber-espionage, particularly targeting the Indonesian government.
According to our research, Bjorka first appeared in Raidforums in November 2022. Bjorka continued to operate on Breach Forums after Raidforums was seized.
Bjorka has a single profile picture on all his accounts. When looking at this picture, it is understood that it is a profile made up of a combination of two album covers:
The only point that draws our attention under this title is that both albums were released in 2017.
Bjorka’s attacks are characterized by sophistication, precision, and adaptability. Here’s a list of how Bjorka operates:
Bjorka’s attack methods are a blend of technical prowess and strategic thinking. By employing a diverse array of tactics, Bjorka has managed to stay ahead of defenses and continue to pose a significant threat to its targets. The multifaceted nature of Bjorka’s attacks highlights the need for a comprehensive and adaptable defense strategy.
In the Breach Forums, another actor named “RRR” offered 34 million passports and 6.94 million visa data from the Indonesia Directorate General of Immigration for sale; the same data had previously been shared by Bjorka. However, RRR also offered additional Visa data.
This situation raises two questions:
Bjorka’s cyber-attacks have been primarily focused on specific sectors and nations, revealing a pattern that may offer insights into their objectives and motivations. Here’s a list of Bjorka’s main targets:
Bjorka’s choice of targets is both strategic and symbolic, reflecting a calculated approach to cyber warfare. By focusing on specific sectors and nations, Bjorka is able to maximize the impact of their attacks and potentially advance specific agendas. The pattern of targeting also offers clues to Bjorka’s motivations and may provide a roadmap for anticipating and defending against future attacks.
Earlier in the article, we mentioned that Bjorka has multiple social media accounts. There are multiple accounts under the name Bjorka, it is a bit of a question mark as to which of them are real and which are fake, or if they all belong to the same actor.
Bjorka shares data sales on “Breach Forums”:
From time to time, Bjorka opened various pages such as bjork[.]ai and leak[.]sh, but none of them are currently accessible. Recently, following the closure of bjork[.]ai, we have noticed the existence of a blog called bjorkanesia, but we have doubts as to whether it belongs to Bjorka itself.
We have observed that Bjorka has started to use Twitter and Telegram frequently, but it has multiple Telegrams and multiple Twitter pages. Most of them share similar posts at similar times, but there are significant differences in the number of followers. This raises the question of whether Bjorka has opened these pages as a backup and repeats the same posts to keep them active or whether Bjorka’s fake accounts have started to form.
When we looked at its Breach Forums profile, we found that the following Telegram profile belongs to Bjorka:
There are multiple Bjorka channels on Telegram, but some have relatively more followers than others, raising the possibility that they belong to Bjorka:
However, when we do detailed research, we see that Bjorka actively uses a Telegram page with close to 250 followers:
Another thing we noticed about Bjorka is that most of its profiles (Breach Forums and Twitter accounts) state that Bjorka is living in Poland and its gender is Female.
The leak of Indonesian hospital database:
In a post on August 16, Bjorka claimed to have leaked Indonesian Hospital data. Bjorka also said that the data also included data from House of Representatives (DPR-RI) members.
The data contains the name, gender, marriage status, place of birth, date of birth, address, job, city and district information of patients.
Database leak of Bank Syariah Indonesia:
One of the noteworthy recent posts is the Bank Syariah IndonesiaDatabase leak, on August 13, which shows that Bjorka is also targeting the Finance sector in Indonesia:
Money giveaway:
Recently, Bjorka announced on her Twitter account that it will be doing a 5,000 Dollar giveaway and stated that the conditions for participation are to Like, Share, and Commenting under the tweet.
We understand from this post that Bjorka wants to show her power by showing the large amount in her account, and whether this giveaway event is real or not, she aims to spread to a wider audience by increasing its interaction.
Whether this post is Bjorka’s own or not is a matter of debate. It is possible that other actors are using Bjorka’s reputation to carry out a scam; who knows?
Selling a stolen credit card with a high limit:
On August 11, 2023, Bjorka announced on both Telegram and Twitter that it had put up for sale a credit card with a limit of $85,000,000 at Scotia Bank.
The SIAK Database of Dukcapil Ministry of Home Affairs of Indonesia:
One post on the Bjorkanesia blog that caught our attention was the 131 GB data leak of Ministry of Home Affairs of Indonesia published on July 17:
To learn about dark web news about Indonesia and/or Bjorka, you can use the Dark Web News page under the SOCRadar’s CTI module:
In a Telegram post on August 13, Bjorka stated that there will be a lot of Indonesian Private leaks on August 17:
We will see whether Bjorka did this post to get interaction or to announce that will actually share something.
On YouTube, Bjorka shared a mysterious monologue. The actor started with the phrase “But we won’t sell the data” and then touched upon various topics, including data privacy and socio-political matters. This move towards commentary reveals a more thoughtful side of Bjorka, inspiring viewers to take an active role in these difficult times rather than being passive observers.
Interestingly, the video concludes, echoing Anonymous’s motto: “We are Anonymous. We are Legion. We do not forgive. We do not forget. Expect us.”
The cyber threat landscape is often interconnected, with various actors collaborating, competing, or operating in parallel. Bjorka’s relation with other threat actors is an area of interest that may shed light on their capabilities, objectives, and broader context within the cyber underworld. Here’s what we know and what remains speculative:
Bjorka’s potential relations with other threat actors add another layer of complexity to their profile. Whether through collaboration, competition, or influence, these connections provide a broader context for understanding Bjorka’s actions and positioning within the cyber threat landscape. However, the elusive nature of these connections also serves as a reminder of the challenges in fully unraveling the web of relationships that define the cyber underworld.
Bjorka’s emergence as a prominent threat actor in the cyber landscape represents a complex and multifaceted challenge. With a focus on targeted attacks against the Indonesian government, private sectors, and critical infrastructure, Bjorka has demonstrated a sophisticated blend of technical prowess, strategic thinking, and adaptability.
The profile of Bjorka is a testament to the evolving nature of cyber threats, where motivations, methods, and targets are continually shifting. Whether driven by political agendas, financial gains, or ideological beliefs, Bjorka’s actions have had far-reaching impacts, both within Indonesia and potentially beyond.
While some connections with other threat actors remain speculative, the possibility of collaboration or influence adds to the intrigue and complexity of understanding Bjorka’s full scope and intentions.
In the face of such a dynamic and unpredictable threat, continuous vigilance, comprehensive analysis, and adaptable defense strategies are paramount. Bjorka’s activities serve as a stark reminder that cyberspace and cybercrime are ever-changing, and understanding the profiles of individual threat actors is crucial in staying one step ahead.
In light of Bjorka’s sophisticated and targeted attacks, organizations, governments, and individuals must take proactive measures to defend against this threat actor. Here are some security recommendations to consider:
Bjorka’s activities have underscored the importance of a comprehensive and multifaceted approach to cybersecurity. By understanding the profile of this threat actor and implementing targeted security measures, including the utilization of Cyber Threat Intelligence, we can build a resilient defense against Bjorka and similar threats in the future.
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