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BIG HEAD RANSOMWARE

   
 * Created 4 hours ago by akhanafeer
 * Public
 * TLP: White

Big Head is a ransomware family that has gained attention in recent months. It
is not considered a sophisticated strain, with standard encryption methods and
easy-to-detect evasion techniques. The creators of Big Head are continuously
developing and refining the malware, experimenting with different approaches.
The malware can steal various types of data, including browsing history,
directories, drivers, and screenshots. It terminates certain processes to
prevent interference with the encryption process. The encrypted files are marked
with a ".rec_rans" extension, and a ransom note called
"HOW_TO_RECOVERY_FILES.txt" is left on compromised systems. Big Head is
currently spreading through malvertising campaigns that trick users into
installing fraudulent Windows updates and Microsoft Word installers. One variant
of Big Head displays a fake Windows Update screen during the encryption process.

Tags:
worldwind, trojanspy
Malware Families:
WorldWind , TrojanSpy , big head

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 * Indicators of Compromise (77)
 * Related Pulses (28)
 * Comments (0)
 * History (0)

FileHash-MD5 (21)FileHash-SHA256 (35)FileHash-SHA1 (21)

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related Pulses

FileHash-SHA256ff900b9224fde97889d37b81855a976cddf64be50af280e04ce53c587d978840Ransom:MSIL/Ryzerlo.AJul
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AM13FileHash-SHA256f6a2ec226c84762458d53f5536f0a19e34b2a9b03d574ae78e89098af20bcaa3Jul
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AM13FileHash-SHA256f59c45b71eb62326d74e83a87f821603bf277465863bfc9c1dcb38a97b0b359dJul
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AM14FileHash-SHA256f354148b5f0eab5af22e8152438468ae8976db84c65415d3f4a469b35e31710fRansom:MSIL/Ryzerlo.AJul
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AM12FileHash-SHA256dcfa0fca8c1dd710b4f40784d286c39e5d07b87700bdc87a48659c0426ec6cb6Jul
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AM14FileHash-SHA256cf9410565f8a06af92d65e118bd2dbaeb146d7e51de2c35ba84b47cfa8e4f53bJul
31, 2023, 6:46:31
AM13FileHash-SHA256be6416218e2b1a879e33e0517bcacaefccab6ad2f511de07eebd88821027f92dJul
31, 2023, 6:46:31
AM12FileHash-SHA256bcf8464d042171d7ecaada848b5403b6a810a91f7fd8f298b611e94fa7250463Jul
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AM14FileHash-SHA256b8e456861a5fb452bcf08d7b37277972a4a06b0a928d57c5ec30afa101d77eadRansom:MSIL/Ryzerlo.AJul
31, 2023, 6:46:31
AM13FileHash-SHA2569c1c527a826d16419009a1b7797ed20990b9a04344da9c32deea00378a6eeee2Jul
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