UnknownPublished 30 Aug 2024

type osint · VT collection - flubot via STIX 2.1 Bundle (bundle--931832a0-f7dc-4088-b0d0-9808ad05d585) and converted with the MISP-STIX import feature.

Affects type osintSource CIRCL OSINT Feed

TLP:WHITE, disclosure is not limited

Description

VT collection - flubot via STIX 2.1 Bundle (bundle--931832a0-f7dc-4088-b0d0-9808ad05d585) and converted with the MISP-STIX import feature.

Impact

For European organizations, FluBot poses significant risks primarily through the compromise of employee mobile devices, which can lead to credential theft, unauthorized access to corporate resources, and potential lateral movement within networks if mobile devices are used for multi-factor authentication or corporate communications. The interception of SMS messages can undermine SMS-based two-factor authentication, increasing the risk of account takeover. Data manipulation and remote wiping capabilities threaten data integrity and availability on infected devices, potentially causing operational disruptions. Given the widespread use of mobile devices in European workplaces and the reliance on SMS for authentication in many sectors, FluBot infections could facilitate financial fraud, data breaches, and service interruptions. Additionally, the malware’s ability to control calls and SMS can be exploited for further social engineering or to propagate the malware within an organization’s contact network. The low severity rating in this intelligence report may underestimate the real-world impact if infections go undetected. Organizations in Europe with mobile-first workforces or those in financial, governmental, and critical infrastructure sectors are particularly vulnerable due to the sensitive nature of their data and communications.

Defensive guidance

European organizations should implement multi-layered defenses against FluBot by: 1) Educating employees about the risks of SMS phishing and the dangers of installing apps from untrusted sources or links received via SMS. 2) Enforcing the use of app stores with strict vetting processes and disabling installation from unknown sources on corporate-managed devices. 3) Transitioning from SMS-based multi-factor authentication to more secure methods such as hardware tokens or authenticator apps that do not rely on SMS interception. 4) Deploying mobile threat defense (MTD) solutions capable of detecting and blocking malicious apps and suspicious network activity on mobile devices. 5) Implementing mobile device management (MDM) policies to monitor device compliance, restrict app installations, and enable remote wipe capabilities controlled by the organization. 6) Regularly updating mobile operating systems and security software to reduce exposure to exploitation vectors. 7) Monitoring network traffic for indicators of compromise related to FluBot’s known behaviors, such as unusual SMS or call control activity. 8) Encouraging reporting of suspicious SMS messages and providing clear incident response procedures for suspected infections. These measures, combined with continuous threat intelligence updates, will help reduce the risk and impact of FluBot infections.

Indicators of compromise

Domains 200

020diensten.nl
1000nj.top
1024040027.com
149sf.com
18xmt.cn
1n1k.com.tr
1sttax.net
261.foodmart.pasuyoai.com
360mallgh.com
365holidays.in

URLs 201

https://nhadatlonghoa.xyz/h-e-z/?redacted
https://beta.rabinholding.com/i-g-f/?redacted
https://rachaelest.miloyu.com/vsl/?redacted
http://ourheritagejournal.com/upl/?redacted
http://beh.com.np/uyt/?redacted
http://rtoinfo.whiteclubs.com/q-f-x/?redacted
https://animeunderground.es/tsi/?redacted
http://shahrezamarket.amood-graphic.ir/w-j-g/?redacted
http://getactivetxb.com/i-k-w/?redacted
http://spycoder.net/i/a-v/?redacted

Hashes 193

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010e254eb6bf9494becdd888901245e1ccd03e5421a0996e59c102ac819dc202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type osint · VT collection - flubot via STIX 2.1 Bundle (bundle--931832a0-f7dc-4088-b0d0-9808ad05d585) and converted with the MISP-STIX import feature.

Description

Impact

Defensive guidance

Indicators of compromise

Domains 200

URLs 201

Hashes 193

File 1

Text 1

Community reviews

Description

AI analysisMachine-generated, updated 27 Jun 2025, 11:36 UTC

Indicators of compromise

Domains 200

URLs 201

Hashes 193

File 1

Text 1

Community reviews

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