Home News RedCurl Corporate Espionage Hackers Uses Advanced Tactics

    RedCurl Corporate Espionage Hackers Uses Advanced Tactics



    Group-IB has lately detected a collection of latest superior assaults by the RedCurl group; it’s a company cyber espionage group concentrating on a number of firms across the globe in numerous industries.

    Since RedCurl’s return, they’ve focused 4 firms this 12 months with new superior techniques. One of many firms they’ve focused is among the largest wholesale shops in Russia.

    The pinnacle of the Dynamic Malware Evaluation Workforce at Group-IB, Ivan Pisarev shared a report to Cyber Safety Information:-

    “In each assault, the menace actor demonstrates in depth pink teaming abilities and the flexibility to bypass conventional anti-virus detection utilizing their very own customized malware. Which means that increasingly firms are more likely to fall sufferer to the group, which conducts well-prepared focused assaults geared toward stealing inner company documentation. Business Company cyber espionage stays a uncommon and largely distinctive phenomenon.”

    Sufferer Rely Elevated

    RedCurl has been in operation since at the very least 2018 and has to date focused greater than 30 companies, together with 18 in Russia and Ukraine, 4 in Canada, two in Norway, and one every within the UK and Germany. These newest 4 assaults occurred this 12 months.

    Furthermore, RedCurl hackers are recognized for his or her skill to remain undetected for lengthy intervals of time. They’re wonderful at hiding their tracks, usually evading detection for 2 to 6 months. 

    And they’re able to do that by utilizing cutting-edge expertise and following strict operational safety protocols.

    Wholesale & Retail Assaults

    Earlier than executing the assault, RedCurl investigates its sufferer much more completely from public sources. They usually accomplish that to ship phishing emails to completely different departments of the group on behalf of the HR crew by correctly analyzing their “company id.”

    Nevertheless, in new assaults on retail, RedCurl went even additional and carried out two well-prepared mailings:- 

    • The primary one was “traditional” – on behalf of the HR division of the sufferer group
    • The second was – on behalf of the well-known state portal with the topic of the letter – “Initiation of enforcement proceedings.” 

    Sometimes, all these letters had nothing to do with both the HR division or authorities companies.

    Within the first stage, a malware downloader known as “RedCurl.InitialDropper” was deployed by the attackers on the worker’s laptop. And later, this malware was used to launch the second stage of the assault, and with the intention to get the downloader onto the worker’s laptop, RedCurl packaged it inside a doc that appeared related to their pursuits.

    The doc was disguised as an invite from a Russian firm on the lookout for traders for an upcoming mission. RedCurl collects details about the sufferer’s infrastructure simply after infecting a pc on the goal group’s community. 

    They’re primarily within the following issues:- 

    • Title and model of the contaminated system
    • Record of community and logical drives, 
    • Record of passwords

    The data stolen from the contaminated system, the IP deal with, and the time when the request was acquired is saved to a separate file on the server-side.

    Instruments used

    Listed here are all the newest and up to date instruments which can be utilized by the RedCurl hackers:-

    • RedCurl.InitialDropper
    • RedCurl.Downloader
    • RedCurl.Extractor
    • RedCurl.FSABIN
    • RedCurl.CHABIN1
    • RedCurl.CHABIN2

    One of the fascinating findings from Group-IB is that the overall variety of assaults towards their goal has been 4. The primary two assaults had been a direct results of RedCurl’s up to date instruments being detected within the wild. 

    Whereas the opposite two have been towards the identical goal, and every assault has been profitable. Nevertheless, since RedCurl’s up to date instruments have been detected so, the variety of victims can even improve as time progresses.

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