Malicious PDF — malware analysis report

Static analysis result for SHA-256 52df964cdd88a306…

MALICIOUS

PDF

16.5 KB Created: 2019-05-02 06:23:45 +01:00 Authoring application: mPDF 5.7
MD5: 32e5613a76c8bdc0c8d8980fc01ea314 SHA-1: c013091febd6b15b35c632df31c0f500c6a989f9 SHA-256: 52df964cdd88a30627a03d6f36eacb8247603d095b6f88cb413a9c766230a552
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though heavily obfuscated, contains many of these URLs pointing to what appear to be book titles. The primary malicious intent appears to be the distribution of these links, potentially for SEO manipulation or to lead users to malicious sites disguised as legitimate content. No scripts were extracted from this sample.

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/1097096094092095/The-Jack-Creek-Horror-by-C-John-Coombes.pdf
    • http://loaminoo.linkpc.net/1097094093097098/Claus-Volume-One-by-C-John-Coombes.pdf
    • http://loaminoo.linkpc.net/2091090096090091/Horror-Stories-by-Jack-Kilborn.pdf
    • http://loaminoo.linkpc.net/2094090098097094/The-Amityville-Horror-II-by-John-G-Jones.pdf
    • http://loaminoo.linkpc.net/1091096094093099091/Neural-Fields-Theory-and-Applications-by-Stephen-Coombes.pdf
    • http://loaminoo.linkpc.net/2093093099091098/Want-Ad-Wedding-Cowboy-Creek-1-by-Cheryl-St-John.pdf
    • http://loaminoo.linkpc.net/4095097091094093/Fifty-Great-Horror-Stories-by-John-Canning.pdf
    • http://loaminoo.linkpc.net/6095090091093/Horror-Films-of-the-1970s-by-John-Kenneth-Muir.pdf
    • http://loaminoo.linkpc.net/3097097092090/The-Darker-Side-Generations-of-Horror-Darkside-2-by-John-Pelan.pdf
    • http://loaminoo.linkpc.net/4093094091093095/Sweet-Annie-The-Copper-Creek-Brides-1-by-Cheryl-St-John.pdf
    • http://loaminoo.linkpc.net/9096095098095096/Double-Barrel-Horror-There-Will-Be-Angels-Marlene-the-Magnificent-by-John-Boden.pdf
    • http://loaminoo.linkpc.net/4098096092096090/The-Dark-Boatman-Tales-of-Horror-and-the-Cthulhu-Mythos-by-John-Glasby.pdf
    • http://loaminoo.linkpc.net/4098093092096092/H-P-Lovecraft-Selects-Classic-Horror-Stories-by-John-William-Polidori.pdf
    • http://loaminoo.linkpc.net/6099098094093098/Blood-Lite-An-Anthology-of-Humorous-Horror-Stories-Presented-by-the-Horror-Writers-Association-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/3098095098096/The-Gothic-Imagination-Conversations-on-Fantasy-Horror-and-Science-Fiction-in-the-Media-by-John-C-Tibbetts.pdf
    • http://loaminoo.linkpc.net/9095097092091/Best-New-Horror-20-The-Mammoth-Book-of-Best-New-Horror-20-by-Stephen-Jones.pdf
    • http://loaminoo.linkpc.net/4090098094090090/Best-New-Horror-22-The-Mammoth-Book-of-Best-New-Horror-22-by-Stephen-Jones.pdf
    • http://loaminoo.linkpc.net/9095099095091/Best-New-Horror-21-The-Mammoth-Book-of-Best-New-Horror-21-by-Stephen-Jones.pdf
    • http://loaminoo.linkpc.net/9095097094090/Best-New-Horror-14-The-Mammoth-Book-of-Best-New-Horror-14-by-Stephen-Jones.pdf
    • http://loaminoo.linkpc.net/3096097097097092/Best-New-Horror-16-The-Mammoth-Book-of-Best-New-Horror-16-by-Stephen-Jones.pdf

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