Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca23352e4683a597…

MALICIOUS

PDF

25.6 KB Created: 2019-04-30 02:20:40 +01:00 Authoring application: mPDF 5.7
MD5: c90ee66d9078d54c054dca55794427b3 SHA-1: df14769c6501d0cf9f5585489b55c42482e1ac02 SHA-256: ca23352e4683a5975e1545cc1abc9be90e4d137e54332bb5e254464b9c88fccd
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, forming a link farm. The ML classifier flagged this PDF as malicious with a high score. The primary attack pattern observed is the distribution of a link farm, likely intended to direct users to malicious content or phishing sites. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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://unieoooq.linkpc.net/54e04e64e44e04e8/The-Atomic-Bomb-and-American-Society-New-Perspectives-by-Rosemary-B-Mariner.pdf
    • http://unieoooq.linkpc.net/14e94e04e44e74e7/The-Making-of-the-Atomic-Bomb-by-Richard-Rhodes.pdf
    • http://unieoooq.linkpc.net/24e74e04e94e34e9/Trinity-A-Graphic-History-of-the-First-Atomic-Bomb-by-Jonathan-Fetter-Vorm.pdf
    • http://unieoooq.linkpc.net/94e04e54e74e5/Trinity-A-Graphic-History-of-the-First-Atomic-Bomb-by-Jonathan-Fetter-Vorm.pdf
    • http://unieoooq.linkpc.net/54e04e84e54e74e8/Writing-Ground-Zero-Japanese-Literature-and-the-Atomic-Bomb-by-John-Whittier-Treat.pdf
    • http://unieoooq.linkpc.net/34e54e14e04e84e8/The-Atomic-Times-My-H-Bomb-Year-at-the-Pacific-Proving-Ground-by-Michael-Harris.pdf
    • http://unieoooq.linkpc.net/14e64e94e14e34e2/Stalin-and-the-Bomb-The-Soviet-Union-and-Atomic-Energy-1939-1956-by-David-Holloway.pdf
    • http://unieoooq.linkpc.net/34e34e74e74e54e3/Waiting-for-Daisy-A-Tale-of-Two-Continents-Three-Religions-Five-Infertility-Doctors-an-Oscar-an-Atomic-Bomb-a-Romantic-Night-and-One-Woman-s-Quest-to-Become-a-Mother-by-Peggy-Orenstein.pdf
    • http://unieoooq.linkpc.net/44e04e94e74e24e0/Unthinkable-Iran-the-Bomb-and-American-Strategy-by-Kenneth-Pollack.pdf
    • http://unieoooq.linkpc.net/14e54e54e34e64e6/The-Atomic-Sea-Volume-Two-The-Atomic-Sea-2-by-Jack-Conner.pdf
    • http://unieoooq.linkpc.net/14e94e14e34e24e3/Spying-on-the-Bomb-American-Nuclear-Intelligence-from-Nazi-Germany-to-Iran-and-North-Korea-by-Jeffrey-T-Richelson.pdf
    • http://unieoooq.linkpc.net/14e14e14e64e94e94e2/Wikitroid---Federation-Solar-System-Bryyo-Elysia-Gfs-Olympus-Norion-quot-Jolly-Roger-quot-Drone-Aeromine-Alpha-Hopper-Anti-Air-Cannon-quot-Tiamat-quot-Atomic-Berserker-Knight-Blast-Shield-Bliptrans-Blue-Door-Bomb-Slot-Brinstone-Bryyonian-Bryyonian-Golem-by-Source-Wikipedia.pdf
    • http://unieoooq.linkpc.net/94e34e54e94e64e8/Perspectives-on-American-Music-1900-1950-by-Michael-Saffle.pdf
    • http://unieoooq.linkpc.net/94e34e54e94e74e5/Perspectives-on-American-Music-from-1945-to-1970-by-James-Heintze.pdf
    • http://unieoooq.linkpc.net/34e04e54e24e84e4/Atomic-Robo-and-the-Shadow-from-Beyond-Time-Atomic-Robo-3-by-Brian-Clevinger.pdf
    • http://unieoooq.linkpc.net/14e04e14e54e94e24e0/Radium-Und-Andere-Radioaktive-Substanzen-Unter-Besonderer-Benutzung-Eines-Von-Elektro-Ingenieur-William-J-Hammer-New-York-VOR-Dem-American-Institute-of-Electrical-Engineers-Und-Der-American-Electrochemical-Society-Am-17-April-1903-Gehaltenen-Vortrage-by-Ernst-Ruhmer.pdf
    • http://unieoooq.linkpc.net/74e14e54e44e14e2/Perversion-Psychoanalytic-Perspectives-Perspectives-on-Psychoanalysis-by-Dany-Nobus.pdf
    • http://unieoooq.linkpc.net/54e14e84e24e94e1/Risk-Negotiating-Safety-in-American-Society-by-Arwen-P-Mohun.pdf
    • http://unieoooq.linkpc.net/94e74e54e04e54e1/The-American-Cancer-Society-New-Healthy-Eating-Cookbook-by-Jeanne-Besser.pdf
    • http://unieoooq.linkpc.net/34e74e14e04e44e0/The-Marble-Man-Robert-E-Lee-and-His-Image-in-American-Society-by-Thomas-Lawrence-Connelly.pdf
    • http://unieoooq.linkpc.net/34e34e74e74e54e3/Waiting-for-Daisy-A-Tale-of-Two-Con

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