Malicious PDF — malware analysis report

Static analysis result for SHA-256 863655c63cdeb49e…

MALICIOUS

PDF

15.2 KB Created: 2019-05-02 05:10:02 +01:00 Authoring application: mPDF 5.7
MD5: 793202c90e6348afde0e136428c008f4 SHA-1: b9b175abd50afc1b11159de689b516a5f11ee3eb SHA-256: 863655c63cdeb49ec98ea5ddb7ca2471f54c9b55c1ad0ab5d86ec481fe78299d
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links pointing to external PDF documents, primarily hosted on the domain 'cefasfese.4pu.com'. This technique is often used to distribute malicious content or to engage in SEO spam. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact nature of the lure beyond the link farm. The primary IOCs are the URLs associated with the link farm.

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://cefasfese.4pu.com/2738736730739738/Here-Kitty-Kitty-Purrfect-Mates-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/4731738735736732/My-Spotted-Dream-Purrfect-Mates-8-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/4734738730731736/Our-Sexy-Tiger-Purrfect-Mates-3-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/2733733730731731/Kitty-Kitty-Bad-Kitty-2-by-Michele-Jaffe.pdf
    • http://cefasfese.4pu.com/1737739737737735/Kitty-Steals-the-Show-Kitty-Norville-10-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/2730735737733731/Kitty-s-House-of-Horrors-Kitty-Norville-7-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/3739739736738739/Kitty-and-the-Dead-Man-s-Hand-Kitty-Norville-5-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/4730731733733/Kitty-and-the-Dead-Man-s-Hand-Kitty-Norville-5-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/3731737737731737/Purrfect-Kitty-Fun-Silly-Memes-and-Stories-English-Edition-Kindle-Edition-by-C-B-Love.pdf
    • http://cefasfese.4pu.com/1733732731737731/Kitty-in-the-Underworld-Kitty-Norville-12-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/2735730736732739/Kitty-s-Big-Trouble-Kitty-Norville-9-by-Carrie-Vaughn.pdf
    • http://cefasfese.4pu.com/1738735732739734/Kitty-Cat-Kitty-Cat-Are-You-Going-to-Sleep-by-Bill-Martin-Jr-.pdf
    • http://cefasfese.4pu.com/3737737735730737/Lennox-Resistant-Omegas-4-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/4734738730733734/Two-Wiggles-and-Some-Fur-Unmated-at-Midnight-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/3737738730739738/Screw-Santa-Who-Needs-Christmas-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/3739733734732737/My-Maven-My-Everything-Sons-of-Thanatus-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/3737737735730734/Wesley-Resistant-Omegas-7-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/4734737738736739/Edric-Resistant-Omegas-3-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/2733735736730737/Shifters-for-Sale-SeXlection-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/4734738732730735/Golden-Bedtime-Stories-1-by-Joyee-Flynn.pdf
    • http://cefasfese.4pu.com/2735730736732739

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