Malicious PDF — malware analysis report

Static analysis result for SHA-256 add99a25e56b5ae1…

MALICIOUS

PDF

15.1 KB Created: 2019-04-30 18:50:51 +01:00 Authoring application: mPDF 5.7
MD5: e659bd0d3f0f720e94d9cfd874cd548a SHA-1: 94cdaf239499c584063d842f7ce9cd4fea1f91d8 SHA-256: add99a25e56b5ae12a8fb887e18a99d3c720dbfe70e75841f0084492443fac3c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on the xiixmcuin.linkpc.net domain. This heuristic firing indicates a link farm, likely used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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://xiixmcuin.linkpc.net/6201205205202201/Baby-Girl-Loved-Erik-Ead-Trilogy-3-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/1206209209205203/Baby-Girl-Erik-Ead-Trilogy-1-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/5204204208204/Plenty-of-Fish-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/1202208207203202/Ex-Con-Selected-Sinners-MC-5-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/4205202200200207/Confessions-of-a-Smut-Author-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/3205209203209208/Making-the-Cut-Selected-Sinners-MC-1-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/3206200200207205/Filthy-Biker-MC-Romance-1-5-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/4205206203203207/Otis-Selected-Sinners-MC-3-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/9209207208209/Unstoppable-Fighter-Erotic-Romance-2-by-Scott-Hildreth.pdf
    • http://xiixmcuin.linkpc.net/3209207200209200/Cobalt-City-Double-Feature-by-Erik-Scott-de-Bie.pdf
    • http://xiixmcuin.linkpc.net/3207204206203209/Ghostwalker-Forgotten-Realms-The-Fighters-2-by-Erik-Scott-de-Bie.pdf
    • http://xiixmcuin.linkpc.net/6206203202205200/The-Girl-Who-Loved-Cheese-by-Bob-Desautels.pdf
    • http://xiixmcuin.linkpc.net/6203207209203/Probably-the-World-s-Best-Story-About-a-Dog-and-the-Girl-Who-Loved-Me-by-D-James-Smith.pdf
    • http://xiixmcuin.linkpc.net/5209206200204202/The-Girl-Who-Loved-Tom-Gordon-A-Pop-up-Book-by-Peter-Abrahams.pdf
    • http://xiixmcuin.linkpc.net/1203202202202/Temple-Grandin-How-the-Girl-Who-Loved-Cows-Embraced-Autism-and-Changed-the-World-by-Sy-Montgomery.pdf
    • http://xiixmcuin.linkpc.net/2201207203201205/Buckles-Me-Baby-The-Bootscootin-Books-3-by-D-D-Scott.pdf
    • http://xiixmcuin.linkpc.net/9207203208204/I-Love-You-Baby-Girl-by-Desire-Night.pdf
    • http://xiixmcuin.linkpc.net/2204209205205206/St-Patty-s-Baby-The-Mel-and-Tia-Trilogy-2-by-Sienna-Mynx.pdf
    • http://xiixmcuin.linkpc.net/4208202204200205/Claudia-and-the-New-Girl-The-Baby-sitters-Club-12-by-Ann-M-Martin.pdf
    • http://xiixmcuin.linkpc.net/4200203208209201/Bruh-Rabbit-and-the-Tar-Baby-Girl-by-Virginia-Hamilton.pdf
    • http://xiixmcuin.linkpc.net/6203207209203/Probably-the-World-s-Best-Story-About-a-Dog-and

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