Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2620618b867fb9d…

MALICIOUS

PDF

21.0 KB Created: 2019-05-02 18:50:48 +01:00 Authoring application: mPDF 5.7
MD5: 10eb50e7f02969689c753bd6eeda26e3 SHA-1: b348ec592b17a2c5158e7fdafab5453b1cc697c5 SHA-256: d2620618b867fb9defbde94831a23e16d53556ab414fb8174a628dcf34475d86
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious websites. While the specific intent of the links is unclear due to benign reputation labels, the sheer volume and the critical heuristic firing suggest a malicious purpose, likely related to driving traffic to potentially harmful sites or delivering further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://loaminoo.linkpc.net/7094093095090099/Ye-Great-and-General-Courte-in-Collonie-Times-by-James-Robinson-Newhall.pdf
    • http://loaminoo.linkpc.net/3098091096094099/Henry-and-Mudge-Under-the-Yellow-Moon-Henry-and-Mudge-4-by-Cynthia-Rylant.pdf
    • http://loaminoo.linkpc.net/4098091098098097/Henry-and-Mudge-and-the-Happy-Cat-Henry-and-Mudge-8-by-Cynthia-Rylant.pdf
    • http://loaminoo.linkpc.net/1091093090091090091/Clark-Howard-s-Living-Large-in-Lean-Times-250-Ways-to-Buy-Smarter-Spend-Smarter-and-Save-Money-by-Clark-Howard.pdf
    • http://loaminoo.linkpc.net/6092098095093091/The-Last-Great-Frenchman-A-Life-Of-General-De-Gaulle-by-Charles-Williams.pdf
    • http://loaminoo.linkpc.net/6098099097094/Stealing-the-General-The-Great-Locomotive-Chase-and-the-First-Medal-of-Honor-by-Russell-S-Bonds.pdf
    • http://loaminoo.linkpc.net/9097092098092093/History-of-the-Communist-Party-of-Great-Britain-The-General-Strike-1925-27-by-James-Klugmann.pdf
    • http://loaminoo.linkpc.net/1093099095092098/The-Great-White-Hope-by-Howard-Sackler.pdf
    • http://loaminoo.linkpc.net/4093092096094098/African-Kaiser-General-Paul-von-Lettow-Vorbeck-and-the-Great-War-in-Africa-1914-1918-by-Robert-Gaudi.pdf
    • http://loaminoo.linkpc.net/1094091095097094/Headin-for-Better-Times-The-Arts-of-the-Great-Depression-by-Duane-Damon.pdf
    • http://loaminoo.linkpc.net/8096095095094093/The-Great-Shift-Encountering-God-in-Biblical-Times-by-James-L-Kugel.pdf
    • http://loaminoo.linkpc.net/1092092092098093/Hard-Times-An-Oral-History-of-the-Great-Depression-by-Studs-Terkel.pdf
    • http://loaminoo.linkpc.net/6093093096094099/The-Great-Northern-Express-A-Writer-s-Journey-Home-by-Howard-Frank-Mosher.pdf
    • http://loaminoo.linkpc.net/2097096092093097/Ruth-Fielding-Down-in-Dixie-Or-Great-Times-in-the-Land-of-Cotton-by-Alice-B-Emerson.pdf
    • http://loaminoo.linkpc.net/2093099094098091/The-Great-Divorce-a-Nineteenth-Century-Mother-s-Extraordinary-Fight-Against-Her-Husband-the-Shakers-and-Her-Times-by-Ilyon-Woo.pdf
    • http://loaminoo.linkpc.net/2091098092094092/The-Great-Divorce-A-Nineteenth-Century-Mother-s-Extraordinary-Fight-against-Her-Husband-the-Shakers-and-Her-Times-by-Ilyon-Woo.pdf
    • http://loaminoo.linkpc.net/2094093096092099/The-House-Without-Windows-by-Barbara-Newhall-Follett.pdf
    • http://loaminoo.linkpc.net/3093096095096099/Humanity-for-Beginners-by-Faith-Mudge.pdf
    • http://loaminoo.linkpc.net/2093098097091091/The-History-of-Photography-From-1839-to-the-Present-Day-by-Beumont-Newhall.pdf
    • http://loaminoo.linkpc.net/4091091090096098/Henry-and-Mudge-and-the-Happy-Cat-The-Eighth-Book-of-Their-Adventures-by-Cynthia-Rylant.pdf
    • http://loaminoo.linkpc.net/9097092098092093/History-of-the-Communist-Party-of-Great-Britain-The

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