Malicious PDF — malware analysis report

Static analysis result for SHA-256 7737d0c3f4914db3…

MALICIOUS

PDF

18.9 KB Created: 2020-02-09 16:45:19 +00:00 Authoring application: mPDF 5.7
MD5: f89374c80afa5a6dca4001150801a073 SHA-1: 6ef4fafa13e1aab3c6f8aaa219d457157aa35c9c SHA-256: 7737d0c3f4914db342f5710ea3d2ef10f4254f993699400dc8afeef6af5b947c
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently classified as benign, the sheer volume and structure suggest a malicious intent to redirect users. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, limiting further analysis of direct payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://kiyuteraspdf.changeip.com/37863786678627868/Percy-Jackson-s-Greek-Gods-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/278647860786478647860/Percy-Jackson-and-the-Lightning-Thief-Percy-Jackson-and-the-Olympians-1-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/278697863786978617864/Percy-Jackson-and-the-Olympians-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/47861786078647863/The-Sea-of-Monsters-Percy-Jackson-and-the-Olympians-2-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/87865786878667866/The-Sea-of-Monsters-Percy-Jackson-and-the-Olympians-2-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/378607867786478617861/The-Last-Olympian-Percy-Jackson-and-the-Olympians-5-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/478627868786378637869/The-Sea-of-Monsters-Percy-Jackson-and-the-Olympians-2-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/87864786278677864/The-Battle-of-the-Labyrinth-Percy-Jackson-and-the-Olympians-4-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/778607867786878657866/The-Lightning-Thief-Percy-Jackson-and-the-Olympians-1-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/578627864786678637869/Percy-Jackson---Tome-3---Le-Sort-Du-Titan-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/578607861786478627864/The-Titan-s-Curse-Percy-Jackson-amp-The-Olympians-3-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/378637866786778647860/The-Lightning-Thief-Percy-Jackson-and-the-Olympians-1-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/378637866786478697864/The-Titan-s-Curse-Percy-Jackson-and-the-Olympians-3-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/47867786578667863/The-Titan-s-Curse-Percy-Jackson-and-the-Olympians-3-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/778637862786178627866/The-Last-Olympian-Percy-Jackson-amp-the-Olympians-Book-5-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/278657868786778667862/The-Lightning-Thief-Percy-Jackson-and-the-Olympians-1-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/678697864786078607861/Bi-n-Qu-i-V-t-Percy-Jackson-V-C-c-V-Th-n-Olympia-2-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/37862786878617865/Percy-Jackson-and-the-Olympians-Percy-Jackson-and-the-Olympians-1-3-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/678687864786678647866/Percy-Jackson-e-gli-Dei-dell-Olimpo---Il-romanzo-a-fumetti-1-Il-Ladro-di-Fulmini-by-Rick-Riordan.pdf
    • http://kiyuteraspdf.changeip.com/178617862786278687862/Demigods-and-Magicians-Three-Stories-from-the-World-of-Percy-Jackson-and-the-Kane-Chronicles-by-Rick-Riordan.pdf

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