Malicious PDF — malware analysis report

Static analysis result for SHA-256 13bad4fa40a66557…

MALICIOUS

PDF

15.1 KB Created: 2019-05-02 17:49:06 +01:00 Authoring application: mPDF 5.7
MD5: 90c658692fd2dea9b41ca69b29586056 SHA-1: 9dde2e4488aab1234935084050b0b6b4649f023d SHA-256: 13bad4fa40a66557ca9c012fb7475a03b0cc60ee5120b62aff10e5a84d91e0ff
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, which is a common tactic for SEO manipulation or distributing malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially harmful external sites. The ML classifier also flagged this PDF as malicious.

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://loaminoo.linkpc.net/6099096091093/Waiting-For-The-Barbarians-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/2091094095097/Waiting-for-the-Barbarians-Essays-from-the-Classics-to-Pop-Culture-by-Daniel-Mendelsohn.pdf
    • http://loaminoo.linkpc.net/3098090095090094/Barbarians-of-Malka-Barbarians-of-Malka-5-by-Justus-Roux.pdf
    • http://loaminoo.linkpc.net/7097097098099/Lady-in-Waiting-Becoming-God-s-Best-While-Waiting-for-Mr-Right-by-Jackie-Kendall.pdf
    • http://loaminoo.linkpc.net/3095093096097097/Waiting-for-the-Sun-Waiting-for-the-Sun-1-by-Robin-Hill.pdf
    • http://loaminoo.linkpc.net/4090095094090094/The-Waiting-The-Waiting-1-by-Elizabeth-Burgess.pdf
    • http://loaminoo.linkpc.net/1094094096092096/Waiting-for-You-Waiting-for-You-1-by-Shey-Stahl.pdf
    • http://loaminoo.linkpc.net/3091095091093091/Waiting-for-You-Waiting-for-You-1-by-Shey-Stahl.pdf
    • http://loaminoo.linkpc.net/1091092097093096099/Is-Waiting-Time-a-Quality-Service-Indicator-for-Radiotherapytreatment-The-Effect-of-Waiting-Time-Onlocal-Tumour-Control-for-Nasopharyngeal-Carcinoma-Patients-in-Hongkong-by-Mei-Yu-Jadie-Tze.pdf
    • http://loaminoo.linkpc.net/6094092092099/Castle-Waiting-Vol-2-Castle-Waiting-Omnibus-Collection-2-by-Linda-Medley.pdf
    • http://loaminoo.linkpc.net/2091092097093091/Disgrace-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/2092096097092098/Disgrace-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/3099090094095091/Youth-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/8098090097096/Disgrace-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/1097095099097092/Age-Of-Iron-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/3098097093094095/Three-Stories-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/4094097091095/The-Master-of-Petersburg-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/3095095096090/The-Schooldays-of-Jesus-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/1093096099092090/In-the-Heart-of-the-Country-by-J-M-Coetzee.pdf
    • http://loaminoo.linkpc.net/7099096094092/The-Lives-of-Animals-by-J-M-Coetzee.pdf

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