GamaWiperMalware
According to ClearSky, this is a VBS-based wiper, deployed via exploitation of a vulnerable WinRAR version (CVE-2025-80880). They assess with medium confidence a link to Gamaredon.From MISP Galaxy
Last reported 4 months ago, by Sekoia.io1 report
ATT&CK techniques
5 techniques · each with the sentence it comes from- T1027.006HTML Smuggling
“Next, it initiates a HTML Smuggling technique with a Base64-encoded RAR archive embedded in its source code, named 2_14_6_1033_09.12.2025.rar and exploiting CVE-2025-8088.”
- T1036Masquerading
“To maintain a resilient connection with C2 server, GammaWorm establishes a persistence mechanism masquerading as a system maintenance tool.”
- T1053.005Scheduled Task
“It establishes persistence via scheduled tasks and actively conceals its core modules within NTFS Alternate Data Streams (ADS).”
- T1546.013PowerShell Profile
“…to achieve remote code execution if a file is written to specific locations, such as persistence paths (e.g., Programs\Startup) as PowerShell profile, or by replacing a DLL to exploit a DLL search order hijacking vulnerability.”
- T1684Social Engineering
“…itimate directories, replacing them with malicious LNK shortcut files, and forge a second type of LNK shortcuts that use Ukrainian social engineering lures.”
Reports per month
last 12 monthsOctober so far (hatched). Counted by report, not by story.
What the reports say
1 report, newest first · the exact sentence from each-
FSB’s matryoshka #1/3: Inside Gamaredon Cyber Operations“Finally, in December 2025, ClearSky Cyber Security highlighted a new malware attributed to Gamaredon with medium confidence: GamaWiper.”
Indicators in its reports
named in the reports above- mil.gov[.]uain 1 report
- teletype[.]inin 1 report
- 1794369214b7f62e70a0485e61335c61in 1 report
- hxxp://iiwdsxwamylbwwsoyrmj.supabase[.]co/functions/v1/clever-responder/KokonGoogle_09.12.2025in 1 report
- hxxps://[email redacted][.]co/functions/v1/clever-responder/GurGoogle_09.12.2025/audience/capture.pdfin 1 report
- 8e1624d110c090ff57d4b493a9107c66in 1 report
- hxxps://graph[.]org/in 1 report
- graph[.]orgin 1 report
- 104.194.140[.]6in 1 report
- moment-cat-qld-place.trycloudflare[.]comin 1 report
- shellobject[.]runin 1 report
- hxxps://www.telegram[.]me/s/oberfaririn 1 report
- gov[.]tkin 1 report
- gov[.]skin 1 report
- net[.]uain 1 report
- mfa.gov[.]uain 1 report
- gov[.]trin 1 report
- hxxps://efficiency-planes-emotions-fascinating.trycloudflare[.]com/@myrain/Xh1Lta2Ccro?84wtj9ob-01-31in 1 report
- efficiency-planes-emotions-fascinating.trycloudflare[.]comin 1 report
- hxxps://efficiency-planes-emotions-fascinating.trycloudflare[.]comin 1 report
Copy these 20 indicators · defanged
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