Malicious PDF — malware analysis report

Static analysis result for SHA-256 a819e3975c0c8264…

MALICIOUS

PDF

12.9 KB Created: 2019-05-02 05:13:08 +01:00 Authoring application: mPDF 5.7
MD5: eae92c349a4392abc58b0608fd6d1390 SHA-1: 3f097a5b2ed9dc5084a36ae5138951cbbe266d1d SHA-256: a819e3975c0c826451126d9daf067981ba36007586591ca94310f9dca7736da4
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/6092094097097093/Gorby-amp-the-Rats-by-Obeyd-I-Zakani.pdf
    • http://loaminoo.linkpc.net/6092094097097099/Gorby-And-The-Rats-Mush-O-Gurbeh-by-Niz-m-al-D-n-Ubayd-Z-k-n-.pdf
    • http://loaminoo.linkpc.net/1092092093094092/The-Rats-Rats-1-by-James-Herbert.pdf
    • http://loaminoo.linkpc.net/1094093099097/Mrs-Frisby-and-the-Rats-of-NIMH-Rats-of-NIMH-1-by-Robert-C-O-39-Brien.pdf
    • http://loaminoo.linkpc.net/4091095091099090/Rats-Bats-amp-Vats-The-Rats-and-the-Bats-1-by-Dave-Freer.pdf
    • http://loaminoo.linkpc.net/6092094097098094/Living-with-the-Psalms-Journal-Recording-Your-Spiritual-Journey-by-Gary-Gorby.pdf
    • http://loaminoo.linkpc.net/6092094098093091/ATV-Trails-Guide-The-Definitive-Guide-to-ATV-s-by-June-Gorby.pdf
    • http://loaminoo.linkpc.net/7099095091098095/Rats-by-Sue-Fox.pdf
    • http://loaminoo.linkpc.net/3090099097092098/Cooking-at-Home-Williams-Sonoma-by-Chuck-Williams.pdf
    • http://loaminoo.linkpc.net/7099095091093098/Rats-on-Strings-by-Guy-James.pdf
    • http://loaminoo.linkpc.net/1099097090095090/From-Rats-to-Riches-by-U-Morgan.pdf
    • http://loaminoo.linkpc.net/3097092093095099/Rats-Alley-by-auburn.pdf
    • http://loaminoo.linkpc.net/7096095099092094/Rats-by-Lian-Tanner.pdf
    • http://loaminoo.linkpc.net/1094099099092094/War-of-the-Rats-by-David-L-Robbins.pdf
    • http://loaminoo.linkpc.net/7099095091094095/Gem-Rats-by-Lisa-Loomis.pdf
    • http://loaminoo.linkpc.net/7099095092094097/Graveyard-Rats-and-Others-by-Robert-E-Howard.pdf
    • http://loaminoo.linkpc.net/7099095092095092/The-Swamp-Rats-The-Phantom-11-by-Lee-Falk.pdf
    • http://loaminoo.linkpc.net/7099095090099099/Rats-on-the-Roof-by-James-Marshall.pdf
    • http://loaminoo.linkpc.net/7099095091099093/The-House-of-Rats-by-Stephen-Elboz.pdf
    • http://loaminoo.linkpc.net/2093091099093093/The-Burial-of-the-Rats-by-Bram-Stoker.pdf
    • http://loaminoo.linkpc.net/10

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