Malicious PDF — malware analysis report

Static analysis result for SHA-256 55aa1283e0b15b43…

MALICIOUS

PDF

16.1 KB Created: 2019-04-30 05:46:43 +01:00 Authoring application: mPDF 5.7
MD5: fc2e60edb248c7408de2e9bfb7ec2f13 SHA-1: b00ec3c82b5326e799fe68120a82f1dcb7ef35d3 SHA-256: 55aa1283e0b15b43d1a14e656e82631f64c3c428d0ffad2d08f3ef429026c11e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDFs hosted on the domain 'loaminoo.linkpc.net'. This domain and the structure of the links suggest a link farm or SEO poisoning attempt, likely intended to redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence.

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://loaminoo.linkpc.net/9092096099098094/Kurt-Schwitters-Merz-A-Total-Vision-Of-The-World-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092096099099095/Kurt-Schwitters-Catalogue-Raisonne-Volume-3-1937-1948-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092097090094090/Kurt-Schwitters-Catalogue-Raisonn-Vol-2-1923-1936-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092096098099097/Lucky-Hans-and-Other-Merz-Fairy-Tales-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092096098099096/Three-Short-Stories-Kurt-Schwitters-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092097092090097/Schwitters-In-Norwegen-Arbeiten-Dokumente-Ansichten-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092096099090091/Kurt-Schwitters-I-Is-Style-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092096098099094/pppppp-by-Kurt-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092097090093096/The-Triumph-of-Kurt-Schwitters-by-Barbara-Crossley.pdf
    • http://loaminoo.linkpc.net/9092096099090098/Kurt-Schwitters-Space-Image-Exile-by-Megan-R-Luke.pdf
    • http://loaminoo.linkpc.net/9092097090090091/Conflicts-with-Modernism-or-the-Absence-of-Kurt-Schwitters-by-Rudi-Fuchs.pdf
    • http://loaminoo.linkpc.net/9092098094090096/Building-the-Monkey-House-At-Kurt-Vonnegut-s-Writing-Table-by-Kurt-Vonnegut.pdf
    • http://loaminoo.linkpc.net/9092096099090095/Schwitters-in-Norway-by-Terje-Thingvold.pdf
    • http://loaminoo.linkpc.net/9092096099099094/College-Algebra-amp-Trigonometry-by-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092097092091097/Dr-Jack-Masquelier-s-Mark-on-Health-Revised-Edition-by-Bert-Schwitters.pdf
    • http://loaminoo.linkpc.net/9092097091091095/Student-Solutions-Manual-for-Elementary-And-Intermediate-Algebra-by-Karen-Schwitters.pdf
    • http://loaminoo.linkpc.net/5093091096090090/Kurt-Vonnegut-The-Last-Interview-and-Other-Conversations-by-Kurt-Vonnegut.pdf
    • http://loaminoo.linkpc.net/9098093094098095/The-Kurt-Vonnegut-Jr-Audio-Collection-by-Kurt-Vonnegut.pdf
    • http://loaminoo.linkpc.net/9092097092090099/Studyguide-for-Beginning-Algebra-by-Schwitters-Kaufmann-amp-ISBN-9780840065896-by-Cram101-Textbook-Reviews.pdf
    • http://loaminoo.linkpc.net/9092097092091093/Text-Specific-DVDs-for-Kaufmann-Schwitters-Intermediate-Algebra-by-Jerome-E-Kaufmann.pdf
    • http://loaminoo.linkpc.net/9092098094090096/Building-the-Monkey-House-At

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