TF-1933774
high
📛 Threat Title
Unknown Loader: Domain name that delivers a malware payload sphere.buzz
Description
Indicator that identifies a malware distribution server (payload delivery). IOC type: Domain name that delivers a malware payload. Attributed malware: Unknown Loader. Confidence: 75. First seen: 2026-09-25 16:07:24 UTC. Reporter: varysz. Tags: etherhiding, victim.
Indicators of Compromise (1)
Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.
domain
sphere.buzz
VT: VT base fetch failed: HTTPError: 401 Client Error: Unauthorized for url: https://www.virustotal.com/api/v3/domains/sphere.buzz
UrlVoid 3 / 36
IOC database
- Type
- domain
- Value
sphere.buzz- First seen
- Last seen
- Attached to this threat
- Appears in
- 1 threat
- Description
- Ingested from IOC source: https://threatfox.abuse.ch/downloads/hostfile/
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Details From VirusTotal
VirusTotal: VT base fetch failed: HTTPError: 401 Client Error: Unauthorized for url: https://www.virustotal.com/api/v3/domains/sphere.buzz
References (2)
- Malpedia profile ThreatFox IOCs
-
ThreatFox IOC page
ThreatFox IOCs
Indicator that identifies a malware distribution server (payload delivery). IOC type: Domain name that delivers a malware payload. Attributed malware: Unknown Loader. Confidence: 75. First seen: 2026-09-25 16:07:24 UTC. Reporter: varysz. Tags: etherhiding, victim.
Remediations (10)
-
web:blog.sicuranext.com
A real-world ClickFix intrusion observed from both sandbox and endpoint telemetry, revealing the complete attack path from a compromised WordPress site to a blocked GULoader execution, including a full process creation call stack from the Windows Run dialog to the kernel.
-
web:cyberpress.org
Attackers changed lure domains , payload sources and command-and-control methods across four malware chains observed over five months.
-
web:darkwebinformer.com
A new domain -based indicator has been identified associated with payload delivery activity tied to the malware unknown_loader . This domain , advertised under the guise of a mobile advertising and monetization platform, poses a high-confidence threat to users and organizations.
-
web:ismalicious.com
4,553 indicators of compromise attributed to the Unknown Loader malware family — domains , IPs, URLs and file hashes, from abuse.ch feeds.
-
web:socprime.com
The final payload is an unidentified Remote Access Trojan (RAT) that relies on DLL side-loading to establish persistence and communicate with its C2 infrastructure. Investigation The investigation included analysis of HTTPS traffic, PCAP files, and malicious archives linked to SmartApeSG activity.
-
web:thehackernews.com
Microsoft details a new ClickFix variant abusing DNS nslookup commands to stage malware , enabling stealthy payload delivery and RAT deployment.
-
web:urlhaus.abuse.ch
URLhaus URLhaus is a platform from abuse.ch and Spamhaus dedicated to sharing malicious URLs that are being used for malware distribution. Report URLs and explore the database for valuable intelligence. Use the APIs, to seamlessly push and pull signals, and automate bulk queries. With this intelligence, gain insights into malware behavior, to help identify, track, and mitigate against malware ...
-
web:www.esentire.com
What did we find? In late July 2026, eSentire's Threat Response Unit (TRU) identified several ErrTraffic-generated ClickFix campaigns attempting to deliver Cruciferra - a malware loader marketed on underground forums that boasts EDR-killing capabilities. TRU found Cruciferra using a vulnerable driver to fulfill this behavior. The driver, also known as , "DCRCVDrv.sys", is signed by South Korean ...
-
web:www.malwarebytes.com
A domain used in software examples—third-party[.]com—now serves up a fake verification page that tells Windows users to run a PowerShell command.
-
web:www.microsoft.com
The ClickFix social engineering technique has been growing in popularity, with campaigns targeting thousands of enterprise and end-user devices daily. This technique exploits users' tendency to resolve technical issues by tricking them into running malicious commands. These commands, in turn, deliver payloads that ultimately lead to information theft and exfiltration.
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.