Malicious PDF — malware analysis report

Static analysis result for SHA-256 68447ddf4582c0c6…

MALICIOUS

PDF

23.3 KB Created: 2019-05-01 19:41:44 +01:00 Authoring application: mPDF 5.7
MD5: 65d19356c1dc88f866dcc74ea7b0de33 SHA-1: cef39f91c8dea10868fde648a97565cf46c93f0d SHA-256: 68447ddf4582c0c635f67f2ef0f42122feef33a1d80115149a57434f269cc9ee
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDFs hosted on a dynamic DNS domain, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the document body is unreadable, the heuristic firings strongly suggest a link-farming or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9903

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/5090098095098090/Taiga-s-True-Views-The-Language-of-Landscape-Painting-in-Eighteenth-Century-Japan-by-Melinda-Takeuchi.pdf
    • http://loaminoo.linkpc.net/3096095093096097/Unwise-Passions-A-True-Story-of-a-Remarkable-Woman---and-the-First-Great-Scandal-of-Eighteenth-Century-America-by-Alan-Pell-Crawford.pdf
    • http://loaminoo.linkpc.net/6095091096095094/Escaping-Japan-Reflections-on-Estrangement-and-Exile-in-the-Twenty-First-Century-Japan-Anthropology-Workshop-Series-by-Blai-Guarn-.pdf
    • http://loaminoo.linkpc.net/7096096090091098/Chinese-Landscape-Painting-Techniques-for-Watercolor-by-Lian-Quan-Zhen.pdf
    • http://loaminoo.linkpc.net/1095092096097/Nature-and-Culture-American-Landscape-and-Painting-1825-1875-by-Barbara-Novak.pdf
    • http://loaminoo.linkpc.net/1092092098097095/The-Programming-Language-Landscape-by-Henry-F-Ledgard.pdf
    • http://loaminoo.linkpc.net/1091094097093097092/The-Global-Eighteenth-Century-by-Felicity-Nussbaum.pdf
    • http://loaminoo.linkpc.net/4099097092097091/Tuning-Containing-The-Perfection-Of-Eighteenth-Century-Temperament-The-Lost-Art-Of-Nineteenth-Century-Temperament-And-The-Science-Of-Equal-Temperament-Complete-With-Instructions-For-Aural-And-Electronic-Tuning-by-Owen-H-Jorgensen.pdf
    • http://loaminoo.linkpc.net/9094090091096093/Eighteenth-Century-British-Midwifery-Part-II-by-Pam-Lieske.pdf
    • http://loaminoo.linkpc.net/5092093093098097/Lord-Hervey-Eighteenth-Century-Courtier-by-Halsband.pdf
    • http://loaminoo.linkpc.net/6093098093093091/Diocese-of-Killaloe-in-the-eighteenth-century-by-Ignatius-Murphy.pdf
    • http://loaminoo.linkpc.net/4091095097097097/De-Colores-Means-All-of-Us-Latina-Views-for-a-Multi-Colored-Century-by-Elizabeth-Mart-nez.pdf
    • http://loaminoo.linkpc.net/1090097098094093091/Modes-amp-Manners-From-the-Middle-Ages-to-the-End-of-the-Eighteenth-Century-by-Max-Von-Boehn.pdf
    • http://loaminoo.linkpc.net/6097094090092094/The-Libertine-The-Art-of-Love-in-Eighteenth-Century-France-by-Michel-Delon.pdf
    • http://loaminoo.linkpc.net/1090095097099099091/Nightwalkers-Prostitute-Narratives-from-the-Eighteenth-Century-by-Laura-J-Rosenthal.pdf
    • http://loaminoo.linkpc.net/1091091099095091095/John-Law-A-Scottish-Adventurer-in-the-Eighteenth-Century-by-James-Buchan.pdf
    • http://loaminoo.linkpc.net/5099095099093098/Eighteenth-Century-Britain-1688-1783-by-Jeremy-Black.pdf
    • http://loaminoo.linkpc.net/5096096098096096/Dangerous-Liaisons-Fashion-and-Furniture-in-the-Eighteenth-Century-by-Harold-Koda.pdf
    • http://loaminoo.linkpc.net/1095090098092091/The-Poor-of-Eighteenth-Century-France-1750-1789-by-Olwen-H-Hufton.pdf
    • http://loaminoo.linkpc.net/1091091094095099092/Transformations-of-the-German-Novel--Simplicissimus--In-Eighteenth-Century-Adaptations-by-Monique-Rinere.pdf