El Ransomware hoy en día, es una de las ciberamenazas más importantes a nivel mundial ya que no solo compromete los activos digitales sino que también la información sensible y privada de las empresas que son víctima, sin embargo, el Ransomware es el payload final y muchos de estos ataques provienen de una infección previa con Malware de distinto tipo como por ejemplo loaders, RAT o troyanos bancarios.
El listado a continuación, reúne las distintas familias de Malware que podrían derivar en un incidente de Ransomware, comprometiendo la red y la información corporativa.
1.- Buer -> Ryuk
2.- Emotet -> Trickbot -> Ryuk
- https://intel471.com/blog/understanding-the-relationship-between-emotet-ryuk-and-trickbot/ (14-04-2020)
- https://www.cybereason.com/blog/triple-threat-emotet-deploys-trickbot-to-steal-data-spread-ryuk-ransomware (02-04-2019)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.emotet
- https://twitter.com/VK_Intel/status/1250468638634717184
3.- Trickbot -> Ryuk
- https://labs.sentinelone.com/inside-a-trickbot-cobaltstrike-attack-server/ (22-06-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.trickbot
- https://malpedia.caad.fkie.fraunhofer.de/details/win.ryuk
4.- Trickbot -> Conti
- https://www.bleepingcomputer.com/news/security/ryuk-successor-conti-ransomware-releases-data-leak-site/
- https://github.com/k-vitali/Malware-Misc-RE/blob/master/2020-08-31-crime-ransom-conti-vk.yar
- https://malpedia.caad.fkie.fraunhofer.de/details/win.conti
5.- Vatet -> PyXie -> Defray777 / RansomEXX
- https://unit42.paloaltonetworks.com/vatet-pyxie-defray777 (06-11-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.pyxie
6.- IcedID -> Vatet -> PyXie -> Defray777 / RansomEXX
- https://www.trendmicro.com/en_us/research/21/a/expanding-range-and-improving-speed-a-ransomexx-approach.html (06-01-2021)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.icedid
7.- IcedID -> Egregor
- https://www.fireeye.com/blog/threat-research/2021/02/melting-unc2198-icedid-to-ransomware-operations.html (25-02-2021)
- https://unit42.paloaltonetworks.com/egregor-ransomware-courses-of-action/ (08-12-2020)
8.- IcedID -> REvil / Sodinokibi
9.- Ursnif -> Egregor
10.- Qakbot -> Egregor
- https://www.bleepingcomputer.com/news/security/qbot-partners-with-egregor-ransomware-in-bot-fueled-attacks/ (20-11-2020)
- https://unit42.paloaltonetworks.com/egregor-ransomware-courses-of-action/ (08-12-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.qakbot
- https://malpedia.caad.fkie.fraunhofer.de/details/win.egregor
11.- Qakbot -> ProLock
- https://www.bleepingcomputer.com/news/security/prolock-ransomware-teams-up-with-qakbot-trojan-for-network-access/ (14-05-2020)
- https://raw.githubusercontent.com/fboldewin/When-ransomware-hits-an-ATM-giant—The-Diebold-Nixdorf-case-dissected/main/When%20ransomware%20hits%20an%20ATM%20giant%20-%20The%20Diebold%20Nixdorf%20case%20dissected%20-%20Group-IB%20CyberCrimeCon2020.pdf
- https://malpedia.caad.fkie.fraunhofer.de/details/win.pwndlocker
12.- Qakbot -> MegaCortex
- https://success.trendmicro.com/solution/1122802-megacortex-ransomware-information (30-12-2019)
- https://cyware.com/news/qbot-trojan-a-quick-analysis-of-a-decade-old-banking-trojan-bd6d0efd (02-09-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.megacortex
13.- Zloader -> Egregor
- https://malpedia.caad.fkie.fraunhofer.de/details/win.zloader
- https://malpedia.caad.fkie.fraunhofer.de/details/win.egregor
- https://twitter.com/likethecoins/status/1327309590736883712
- https://twitter.com/VK_Intel/status/1324377307109347329
14.- Zloader -> Ryuk
- https://lifars.com/wp-content/uploads/2020/10/The-Assassin-Squad-Zbot-and-RYUK-1.pdf (10-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.zloader
- https://twitter.com/ffforward/status/1324281530026524672
15.- Zloader -> DarkSide
- https://www.advanced-intel.com/post/from-dawn-to-silent-night-darkside-ransomware-initial-attack-vector-evolution (14-05-2021)
16.- SDBBot -> Clop
- https://www.zdnet.com/article/australian-government-warns-of-possible-ransomware-attacks-on-health-sector/ (13-11-2020)
- https://blog.fox-it.com/2020/11/16/ta505-a-brief-history-of-their-time (16-11-2020)
- https://www.cronup.com/post/threat-alert-grupo-ta505-reinicia-ataques-en-latinoam%C3%A9rica
- https://www.cyber.gov.au/acsc/view-all-content/alerts/sdbbot-targeting-health-sector
- https://malpedia.caad.fkie.fraunhofer.de/details/win.sdbbot
- https://malpedia.caad.fkie.fraunhofer.de/details/win.clop
17.- Dridex -> DoppelPaymer
- https://www.trendmicro.com/en_us/research/21/a/an-overview-of-the-doppelpaymer-ransomware.html (05-01-2021)
- https://www.crowdstrike.com/blog/doppelpaymer-ransomware-and-dridex-2/ (12-07-2019)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.doppelpaymer
18.- Dridex -> BitPaymer
- https://www.cert.ssi.gouv.fr/uploads/CERTFR-2020-CTI-008.pdf (17-07-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.friedex
19.- Gootkit -> REvil / Sodinokibi
- https://www.bleepingcomputer.com/news/security/gootkit-malware-returns-to-life-alongside-revil-ransomware/ (30-11-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.gootkit
- https://malpedia.caad.fkie.fraunhofer.de/details/win.revil
20.- Phorpiex -> Avaddon
- https://blog.checkpoint.com/2020/12/09/november-2020s-most-wanted-malware-notorious-phorpiex-botnet-returns-as-most-impactful-infection/ (09-12-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.phorpiex
- https://malpedia.caad.fkie.fraunhofer.de/details/win.avaddon
21.- Phorpiex -> Nemty
- https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/nemty-ransomware-trik-botnet (04-11-2019)
- https://www.lastline.com/labsblog/nemty-ransomware-scaling-up-apac-mailboxes-swarmed-dual-downloaders/ (18-02-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.nemty
22.- BazarLoader / BazarBackdoor -> Ryuk
- https://thedfirreport.com/2020/10/18/ryuk-in-5-hours/ (18-10-2020)
- https://storage.pardot.com/652283/16118467480sqebwq7/MSP_Security_Summit___John_Hammond_Huntress___Analyzing_Ryuk.pdf
- https://malpedia.caad.fkie.fraunhofer.de/details/win.bazarbackdoor
23.- BazarLoader / BazarBackdoor -> Conti
- https://www.cybereason.com/blog/cybereason-vs.-conti-ransomware (12-01-2021)
- https://www.crowdstrike.com/blog/wizard-spider-adversary-update/ (16-09-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.conti
24.- DanaBot -> NonRansomware
- https://research.checkpoint.com/2019/danabot-demands-a-ransom-payment/ (20-06-2019)
- https://www.zdnet.com/article/danabot-banking-trojan-jumps-from-australia-to-german-targets/ (15-08-2019)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.danabot
25.- SmokeLoader -> Crysis / Dharma
- https://www.crowdstrike.com/blog/targeted-dharma-ransomware-intrusions-exhibit-consistent-techniques/ (16-04-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.dharma
- https://malpedia.caad.fkie.fraunhofer.de/details/win.smokeloader
ADICIONAL
A continuación, dos de los frameworks más utilizados por los actores de amenaza y grupos afiliados de Ransomware para la comunicación con los C&C (servidores de comando y control) y el movimiento lateral en la red víctima.
Estos frameworks corresponden a herramientas para ejercicios de tests de penetración, sin embargo, son muy utilizadas en el flujo de ataques a objetivos de alto valor.
1.- Cobalt Strike -> Multiple Ransomware Families
- https://thedfirreport.com/2020/10/18/ryuk-in-5-hours/ (18-09-2020)
- https://thedfirreport.com/2020/08/31/netwalker-ransomware-in-1-hour/ (31-08-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.cobalt_strike
2.- Empire -> Multiple Ransomware Families
- https://thedfirreport.com/2020/11/23/pysa-mespinoza-ransomware/ (23-11-2020)
- https://malpedia.caad.fkie.fraunhofer.de/details/win.empire_downloader
Un reporte similar a este se puede encontrar en https://www.zdnet.com/article/the-malware-that-usually-installs-ransomware-and-you-need-to-remove-right-away/ donde se revisan también algunas de las amenazas aquí señaladas.
La información de este artículo se ira actualizando en la medida que se tengan nuevos antecedentes.
Conoce al enemigo, mantente seguro.
Threat Intelligence Team
CronUp Ciberseguridad
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