Article
Iranian Hackers Working with Ransomware Groups
Arete Analysis
Threat Actors
An Iranian-based group of threat actors associated with the Government of Iran (GOI) is working directly with affiliates of several ransomware groups, according to a joint federal cybersecurity advisory released on August 28. The Iranian threat group, known by several names, including Pioneer Kitten, Fox Kitten, UNC757, Parisite, RUBIDIUM, and Lemon Sandstorm, has provided affiliates associated with the ransomware groups ALPHV/BlackCat, NoEscape, and RansomHouse with access to victim networks and assistance extorting victims for ransom payments in return for a percentage of the ransom collected.
What’s Notable and Unique
Although the Pioneer Kitten threat group conducts cyberattacks in support of the GOI, researchers believe that its activity with ransomware groups is separate and unsanctioned by the GOI. When working with affiliates of the ransomware groups, the group does not share its Iranian nationality or location.
The Iranian threat actors have exploited the recent Check Point Security Gateways vulnerability CVE-2024-24919, which can allow an attacker to gain domain admin privileges. The hotfix for this vulnerability can be found here.
To assist in identifying future attacks associated with the Pioneer Kitten threat group, the FBI provided indicators of compromise, bitcoin addresses, and Tox messenger identifiers in the advisory report.
Analyst Comments
This collaboration between members of the Iranian Pioneer Kitten group and ransomware affiliates adds a layer of complexity when assessing a sanctions nexus. With ALPHV no longer operating as a ransomware-as-a-service (RaaS), it is possible the Iranian threat actors will align themselves with affiliates of newer RaaS organizations in the future. Arete remains diligent in studying ransomware adversaries’ operations and tactics, techniques, and procedures to identify groups with potential ties to sanctioned entities. Additionally, to help prevent being targeted by the Pioneer Kitten, the FBI and CISA recommend that organizations “review available logs for IP addresses” provided in the advisory “to identify historical activity or incidents which may have previously been identified.” The advisory also recommends organizations patch the CVE vulnerabilities and check for the identifiers and TTPs referenced in the report.
Sources
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CMS Vulnerability Leads to ClickFix Campaign
Threat actors compromised at least 700 education and technology websites in a recent ClickFix campaign by exploiting a critical SQL injection flaw (CVE-2026-26980) in the Ghost content management system (CMS). Adversaries combined the vulnerability with the ClickFix social engineering tactic to steal admin keys and inject a malicious JavaScript that delivers a fake Cloudflare or CAPTCHA verification pop-up, tricking victims into copying and pasting a malicious command into their systems.
What’s Notable and Unique
Rather than targeting the end user first, this campaign is unique in its initial exploitation of the system, followed by social engineering attempts. This hybrid attack style is likely being leveraged to bypass traditional defenses.
This recent campaign also highlights how trusted web properties can be weaponized at scale and coupled with unpatched CMS vulnerabilities. Rather than using the CMS compromise to perpetrate a single attack, threat actors turned it into a supply-chain attack that ultimately affected over 700 trusted websites.
Analyst Comments
As network defenders and their tools enhance threat detection capabilities, adversaries increasingly seek methods to bypass these defenses. By combining vulnerability exploitation, social engineering techniques, and staging for ancillary attacks, this campaign successfully bypassed traditional defenses and inflicted significant impact. Defending against hybrid cyberattacks requires comprehensive security controls beyond simply patching vulnerabilities. Organizations should focus on limiting movement within the environment, detecting abuse of trusted applications, and preventing end-user manipulation.
Sources
700+ education and tech websites hijacked in huge ClickFix malware campaign
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Article
Threat Actors Leverage Fake JPEG Files for Initial Access
In a recent campaign, researchers observed threat actors using fake JPEG image files as a delivery mechanism to initiate the deployment of additional malicious components. The false JPEG files are typically distributed via phishing emails or other social engineering-based lures, and are actually PowerShell-based malware that deploys a trojanized version of ConnectWise ScreenConnect to establish and maintain persistence in the compromised environment.
What’s Notable and Unique
This campaign leverages JPEG images as the initial lure, where the images are not merely decoys but part of the infection workflow. Victims are typically led to download or open an image that triggers hidden execution logic or redirects them to a payload-delivery sequence that initiates later stages of the intrusion chain.
The attack chain is designed to blend into legitimate environments, making detection more difficult. Execution typically relies on scripted or native Windows components, often including PowerShell or other living-off-the-land binaries, enabling fileless or near-fileless execution and reducing forensic artifacts on disk.
The multistage design ensures that the initial JPEG does not directly contain the full payload but instead triggers retrieval or decryption steps that progressively assemble the final malicious components in memory.
Analyst Comments
This campaign illustrates how threat actors continue to blur the line between legitimate file handling and malicious execution chains, indicating potential overlap with remote management or administrative tooling. The use of JPEG-based staging combined with script-based execution reflects a broader evolution toward a stealth-first intrusion design, in which file formats serve as triggers rather than payload containers.
Sources
OPERATION SILENTCANVAS : JPEG BASED MULTISTAGE POWERSHELL INTRUSION
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