#threatreport #MediumCompleteness
APT28, an evolution of tradecraft | 11-06-2026
Source:
blog.sekoia.io/apt28-an-evolโฆ
Key details below โ
๐งโ๐ปActors/Campaigns:
Fancy_bear (๐ง motivation: sabotage, hacktivism)
Phantom_net_voxel
Cyberberkut (๐ง motivation: sabotage)
Roundpress
Frostarmada
Cybercaliphate
Apt29
Double_tap
๐Threats:
Polyglot_ransomware, Credential_harvesting_technique, Spypress, Moobot, Aitm_technique, Xagent, Spear-phishing_technique, Sedkit_tool, Sedup_loader, Sedreco, Xtunnel, Screen_shotting_technique, Mimikatz_tool, Zebrocy, Gooseegg_tool, Headlace, Credomap, Masepie_tool, Oceanmap, Steelhook, Dns_hijacking_technique, Incontroller_tool, Bitm_technique, Covenant_c2_tool, Beardshell_tool, Slimagent_tool, Lamehug_tool,
๐ฏVictims: Government, Defense, Diplomatic entities, Critical infrastructure, Political organizations, Civil society, Military, Foreign ministries, Embassies, Law enforcement, ...
๐ญIndustry: Healthcare, Energy, Logistic, Transport, Critical_infrastructure, Education, Ngo, Government, Military
๐Geo: Crimea, Romania, Russian, Ukraine, Ukrainian, America, Germany, American, French, Russia, Africa, Asia, Polish, Bulgaria, German
๐CVEs: CVE-2023-23397 \[[Vulners](
vulners.com/cve/CVE-2023-233โฆ)]
- CVSS V3.1: *9.8*,
- Vulners: Exploitation: True
Soft:
- microsoft 365_apps (-)
- microsoft office (2019)
- microsoft office_long_term_servicing_channel (2021)
- microsoft outlook (2013, 2016)
...
CVE-2022-38028 \[[Vulners](
vulners.com/cve/CVE-2022-380โฆ)]
- CVSS V3.1: *7.8*,
- Vulners: Exploitation: True
Soft:
- microsoft windows_10_1507 (<10.0.10240.19507)
- microsoft windows_10_1607 (<10.0.14393.5427)
- microsoft windows_10_1809 (<10.0.17763.3532)
- microsoft windows_10_20h2 (<10.0.19042.2130)
...
๐TTPs:
โ๏ธTactics: 1
๐ ๏ธTechnics: 0
๐คLLM extracted TTPs:`
T1003, T1005, T1041, T1056.001, T1059.001, T1059.003, T1059.005, T1059.006, T1059.007, T1068, ...
๐ฝSoftware: Outlook, Mistral, Windows Print Spooler, Microsoft Exchange, Roundcube, MDaemon, Zimbra, icedrive, Qwen, Hugging Face, ...
๐ขAlgorithms: base64
๐๏ธWin API: NET
๐Programming Languages: javascript, python, powershell
#threatreport:
APT28, also known as Fancy Bear, has displayed significant evolution in its cyber operations over the years, particularly focusing on government, defense, and critical infrastructure targets related to NATO and Ukraine. The group has been tracked extensively since its inception, with a particular emphasis on major operations like the TV5Monde sabotage and the 2016 breaches of the Democratic Party.
Historically, APT28 utilized a signature implant toolkit that defined its operational fingerprint during notable attacks. This included spear-phishing campaigns deploying the Seduploader first stage malware, later upgraded to the X-Agent backdoor, paired with additional tools for persistence and exfiltration. The hack-and-leak playbook, pioneered by the group, involved releasing stolen documents to maximize political impact, a strategy successfully employed during the US elections.
A significant shift occurred after the 2019 Mueller Report, which brought extensive scrutiny to APT28, resulting in a notable decrease in its publicly tracked activities. However, reports indicate that the group remained active, deploying a custom privilege escalation tool named GooseEgg against various targets, with the exploit of CVE-2022-38028 allowing execution at a system level.
In recent years, APT28 has fragmented its operations into short-lived, single-purpose malware components, utilizing styles of attack that include zero-click exploits against Microsoft Outlook to harvest credentials. Attackers have weaponized vulnerabilities like CVE-2023-23397 to relay captured hashes for credential harvesting, frequently targeting Ukrainian civil society and military sectors.
The operational infrastructure has shifted towards edge devices, moving away from traditional VPS setups. This includes campaigns that leverage compromised routers as part of its network, facilitating the relay of hashed credentials and hosting phishing sites to bypass more stringent defenses. Reports show a wide-scale collection of credentials from users of the popular Ukrainian webmail service,
UKR.NET, utilizing both client-side phishing and server-side webmail exploits based on cross-site scripting (XSS).
Furthermore, APT28 has integrated cutting-edge techniques, including the potential use of a large language model (LLM) in a malware variant named LameHug, demonstrating a novel approach in operational logic delegation. This adaptation toward utilizing AI capabilities reflects ongoing innovation within the group's tactics.
While the group has returned to a more traditional implant methodology in certain recent operations, pairing the new layers of their toolkit with legacy systems like X-Agent, the overall consolidation of varying techniques indicates APT28's responsive adaptation in a rapidly evolving cyber threat landscape. Continued monitoring and public reporting on APT28's activities remain critical for understanding and mitigating their impacts in the cybersecurity domain.