Malicious PDF — malware analysis report

Static analysis result for SHA-256 324397c6bc45ef0b…

MALICIOUS

PDF

24.2 KB Created: 2019-05-02 05:21:19 +01:00 Authoring application: mPDF 5.7
MD5: aaf3bff2d1d30ea6107f1f5a2f6c537c SHA-1: 97daed6edb8ec500176b1f36da55e29c324d0d5a SHA-256: 324397c6bc45ef0b02578976f529f0ed828081b82cfbab0238ae3ee504d136cb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF documents, indicating a link farm strategy. The ML classifier strongly flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing suggest a malicious intent, likely to redirect users to further malicious content or for SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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/1091097091091093099/The-Lean-Years-A-History-of-the-American-Worker-1920-1933-by-Irving-Bernstein.pdf
    • http://loaminoo.linkpc.net/2099097099095092/Jackets-Required-An-Illustrated-History-of-American-Book-Jacket-Design-1920-1950-by-Steven-Heller.pdf
    • http://loaminoo.linkpc.net/1093096094090090/None-Is-Too-Many-Canada-and-the-Jews-of-Europe-1933-1948-by-Irving-Abella.pdf
    • http://loaminoo.linkpc.net/6090092096091090/Unsolved-Mysteries-of-American-History-An-Eye-Opening-Journey-Through-500-Years-of-Discoveries-Disappearances-and-Baffling-Events-by-Paul-Aron.pdf
    • http://loaminoo.linkpc.net/3090094097097096/Unsolved-Mysteries-of-American-History-An-Eye-Opening-Journey-through-500-Years-of-Discoveries-Disappearances-and-Baffling-Events-by-Paul-Aron.pdf
    • http://loaminoo.linkpc.net/8090098097099095/Robert-Capa-The-Paris-Years-1933-54-by-Bernard-Lebrun.pdf
    • http://loaminoo.linkpc.net/4096094090092/I-Will-Bear-Witness-1933-41-A-Diary-of-the-Nazi-Years-by-Victor-Klemperer.pdf
    • http://loaminoo.linkpc.net/1097093094094094/Eleanor-Roosevelt-Volume-2-The-Defining-Years-1933-1938-by-Blanche-Wiesen-Cook.pdf
    • http://loaminoo.linkpc.net/1090093097093095096/May-I-Take-Your-Order-American-Menu-Design-1920-1960-by-Jim-Heimann.pdf
    • http://loaminoo.linkpc.net/1091098091098090098/The-American-Dictionary-of-Dates-458-1920-by-Charles-Ripley-Damon.pdf
    • http://loaminoo.linkpc.net/2098090098095/American-Expressionism-Art-and-Social-Change-1920-1950-by-Bram-Dijkstra.pdf
    • http://loaminoo.linkpc.net/9099092095094/2-Second-Lean-How-to-Grow-People-and-Build-a-Fun-Lean-Culture-by-Paul-A-Akers.pdf
    • http://loaminoo.linkpc.net/2093092090096/Soviet-American-Relations-Vol-1-Russia-Leaves-the-War-1917-1920-by-George-F-Kennan.pdf
    • http://loaminoo.linkpc.net/4092092090098097/The-Lean-Strategy-Using-Lean-to-Create-Competitive-Advantage-Unleash-Innovation-and-Deliver-Sustainable-Growth-by-Michael-Ball-.pdf
    • http://loaminoo.linkpc.net/1097092097091095/Day-of-the-Dragonking-The-Last-American-Wizard-1-by-Terry-Irving.pdf
    • http://loaminoo.linkpc.net/4098096099096098/World-History-Ancient-History-United-States-History-European-Native-American-Russian-Chinese-Asian-Indian-and-Australian-History-Wars-including-World-War-1-and-2-by-Adam-Brown.pdf
    • http://loaminoo.linkpc.net/2090090091095093/Uncertain-Victory-Social-Democracy-and-Progressivism-in-European-and-American-Thought-1870-1920-by-James-T-Kloppenberg.pdf
    • http://loaminoo.linkpc.net/1091098098097099099/Under-Pallor-Under-Shadow-The-1920-American-League-Pennant-Race-That-Rattled-and-Rebuilt-Baseball-by-Bill-Felber.pdf
    • http://loaminoo.linkpc.net/3096099095094095/Fulton-Missouri-1920---1960-History-in-Stories-and-Photographs-by-Carolyn-Paul-Branch.pdf
    • http://loaminoo.linkpc.net/1090090091092093090/-Scientific--National-History-The-Greek-Case-in-Comparative-Perspective-1850-1920-by-Effi-Gazi.pdf
    • http://loaminoo.linkpc.net/3090094097097096/Unsolved-Mysteries-of-American-Histor

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