Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2524371e44ad5b7…

MALICIOUS

PDF

16.3 KB Created: 2019-04-30 09:02:28 +01:00 Authoring application: mPDF 5.7
MD5: 9f3350f7190dc1e3122d799510a2f106 SHA-1: ae3afabbaf5d4860e1bcdd07f3fb5474d2d129d8 SHA-256: b2524371e44ad5b7bfa0edf4072622984c21150b9e221c4eb7867b9709a64a09
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, all hosted on the same domain. This pattern is indicative of a link farm, likely used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

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/2091099099096092/Broken-Promises-Broken-1-by-Dawn-Pendleton.pdf
    • http://loaminoo.linkpc.net/2099090095090091/Broken-Dreams-Broken-2-by-Dawn-Pendleton.pdf
    • http://loaminoo.linkpc.net/7092093098092/Beautiful-Broken-Promises-Broken-3-by-Kimberly-Lauren.pdf
    • http://loaminoo.linkpc.net/2092094097097098/Broken-Promises-by-Elizabeth-Cobbs.pdf
    • http://loaminoo.linkpc.net/2092097092/Broken-Promises-The-Secret-Life-of-Trystan-Scott-6-by-H-M-Ward.pdf
    • http://loaminoo.linkpc.net/4099097094091097/Crucial-Confrontations-Tools-for-Resolving-Broken-Promises-Violated-Expectations-and-Bad-Behavior-by-Kerry-Patterson.pdf
    • http://loaminoo.linkpc.net/1097093098097092/Broken-Hearts-Kaleigh-s-Revenge-Broken-Wings-2-by-Sandra-Love.pdf
    • http://loaminoo.linkpc.net/6092094097094091/Defiant-A-Broken-Body-Is-Not-a-Broken-Person-by-Janine-Shepherd.pdf
    • http://loaminoo.linkpc.net/3094099097096096/Beneath-the-Broken-Moon-Part-Three-Broken-3-by-Sarah-M-kel-.pdf
    • http://loaminoo.linkpc.net/3094099097097096/Beneath-the-Broken-Moon-Part-One-Broken-1-by-Sarah-M-kel-.pdf
    • http://loaminoo.linkpc.net/3093093099095096/Broken-by-Lies-Bound-and-Broken-1-by-Rebecca-Shea.pdf
    • http://loaminoo.linkpc.net/3098092090097/Beautiful-Broken-Rules-Broken-1-by-Kimberly-Lauren.pdf
    • http://loaminoo.linkpc.net/2097098097095090/Broken-Silence-Broken-Trilogy-2-by-Jade-Buchanan.pdf
    • http://loaminoo.linkpc.net/5091096099097/Beautiful-Broken-Rules-Broken-1-by-Kimberly-Lauren.pdf
    • http://loaminoo.linkpc.net/8099098094094/The-Consumerist-Manifesto-Handbook-The-Guerilla-s-Guide-to-Making-Corporations-Pay-for-Faulty-Goods-Substandard-Services-and-Broken-Promises-by-Charles-Selden.pdf
    • http://loaminoo.linkpc.net/1098091096091094/The-Broken-Destiny-Broken-1-by-Carlyle-Labuschagne.pdf
    • http://loaminoo.linkpc.net/2090098090097099/Unforgivably-Broken-Broken-2-by-Maegan-Abel.pdf
    • http://loaminoo.linkpc.net/2099097092093096/Broken-Broken-Wings-1-by-Sandra-Love.pdf
    • http://loaminoo.linkpc.net/3090098097098095/Broken-Broken-Wings-1-by-Sandra-Love.pdf
    • http://loaminoo.linkpc.net/1097093098093098/Broken-Wings-Broken-1-by-Erika-Ashby.pdf