Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3079fe51ba0598…

MALICIOUS

PDF

19.4 KB Created: 2019-05-03 23:19:26 +01:00 Authoring application: mPDF 5.7
MD5: dbf4c478fb4f607e022b21a21b0a4ac9 SHA-1: 50ef040af71b2d9fcb27845a1052b200935b17fa SHA-256: 1d3079fe51ba0598fa338eb4a02a1bfcddfae0ff390c2148dad3090302e3122c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links, constituting a link farm designed to direct users to external websites. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of numerous external links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/1730735734732731730/This-photobook-made-by-HIROSHIMA-who-is-altanative-writer-contains-bust-and-hip-of-japanese-cute-girl-paparazzi-of-japanese-amateure-by-king-of-japanese-paparazzi.pdf
    • http://cefasfese.4pu.com/1730735734732730739/Yuu-Sakura-japanese-cute-graviure-model-is-up-to-sexy-stage-she-has-big-busts-paparazzi-of-japanese-amateure-by-king-of-japanese-paparazzi.pdf
    • http://cefasfese.4pu.com/6739738734738738/Japanese-for-Busy-People-I-Romanized-by-Association-for-Japanese-Language-Teaching-AJALT-.pdf
    • http://cefasfese.4pu.com/1737739730733/Jimi-s-Book-of-Japanese-A-Motivating-Method-to-Learn-Japanese-by-Peter-X-Takahashi.pdf
    • http://cefasfese.4pu.com/6734737730738734/The-Anime-Companion-What-s-Japanese-in-Japanese-Animation-by-Gilles-Poitras.pdf
    • http://cefasfese.4pu.com/6734737730738738/The-Anime-Companion-2-More-What-s-Japanese-in-Japanese-Animation-by-Gilles-Poitras.pdf
    • http://cefasfese.4pu.com/5736731734731737/Japanese-wife-Mayumi-by-king-of-japanese-paparazzi.pdf
    • http://cefasfese.4pu.com/8734738735736739/Marsh-by-Yoshiharu-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734736731/Love-Machine-by-Amayo-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734737731/Kiss-in-Darkness-by-Amayo-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734737739/Sabu-the-Bruiser-by-Tadao-Tsuge.pdf
    • http://cefasfese.4pu.com/8732736737730734/Screw-Style-by-Yoshiharu-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734737735/Suikoden-V-Castle-of-dawn-4-by-Mizuki-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734738738/Za-Gurinber-Sekai-Saiky-No-Otokotachi-by-Hisayoshi-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738735736738/Kusetsu-10nenki-Hatago-no-omoide-by-Yoshiharu-Tsuge.pdf
    • http://cefasfese.4pu.com/8734738734738731/Gens-Suikoden-Faibu-Reimei-No-Shiro-2-by-Mizuki-Tsuge.pdf
    • http://cefasfese.4pu.com/4737739732733739/Inside-and-Other-Short-Fiction-Japanese-Women-by-Japanese-Women-by-Cathy-Layne.pdf
    • http://cefasfese.4pu.com/9737739736734732/Japanese-Woodworking-a-handbook-of-Japanese-tool-use-amp-woodworking-techniques-by-Hideo-Sato.pdf
    • http://cefasfese.4pu.com/2738738731732731/Mountains-of-Music-West-Virginia-Traditional-Music-from-Goldenseal-by-John-Lilly.pdf
    • http://cefasfese.4pu.com/1730737733731734735/Classical-Music-Insights-Understanding-and-Enjoying-Great-Music-by-Betsy-Schwarm.pdf

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