Malicious PDF — malware analysis report

Static analysis result for SHA-256 99d92391a85a7689…

MALICIOUS

PDF

25.4 KB Created: 2019-04-30 04:08:53 +01:00 Authoring application: mPDF 5.7
MD5: 263dc4eac1f39595a49918ef1b38b4b5 SHA-1: aebd87b8d34a6a8ef658cf3dd5bc78b0f3d06890 SHA-256: 99d92391a85a7689d2a37dc8dca5c3f6479c316f15e885daee2eceb61889d98f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded URLs, indicating a potential link farm or distribution mechanism. While no scripts were extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content or to manipulate search engine results. The primary attack pattern observed is the mass embedding of external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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/3096095090099093/The-Max-Lucado-Christmas-Collection-An-Angel-s-Story-The-Christmas-Candle-The-Christmas-Child-by-Max-Lucado.pdf
    • http://loaminoo.linkpc.net/3097093092091095/Christmas-Proposals-Her-Christmas-Romeo-The-Tycoon-s-Christmas-Engagement-A-Bride-for-Christmas-by-Carole-Mortimer.pdf
    • http://loaminoo.linkpc.net/4098090097093094/Christmas-Come-Early-The-Christmas-Nights-Collection-by-Bethany-Lopez.pdf
    • http://loaminoo.linkpc.net/3096094096099092/Life-Lessons-with-Max-Lucado-Waiting-for-Christ-s-Return-by-Max-Lucado.pdf
    • http://loaminoo.linkpc.net/3097094096092093/One-Christmas-Night-Highland-Christmas-A-Wife-For-Christmas-Ian-s-Gift-by-Ruth-Ryan-Langan.pdf
    • http://loaminoo.linkpc.net/2092095091092099/A-Bride-By-Christmas-Home-For-Christmas-The-Wise-Virgin-Tumbleweed-Christmas-by-Heather-Graham.pdf
    • http://loaminoo.linkpc.net/7096092092097092/A-Christmas-Carol-A-Ghost-Story-of-Christmas-Illustrated-by-Charles-Dickens.pdf
    • http://loaminoo.linkpc.net/5093092095092094/A-Christmas-Carol-In-Prose-Being-a-Ghost-Story-of-Christmas-by-Charles-Dickens.pdf
    • http://loaminoo.linkpc.net/7099093094092097/Christmas-Story-Part-2-The-Ugly-Preparation-Before-Christmas-with-3D-Art-by-Koffi-Amouzouvi.pdf
    • http://loaminoo.linkpc.net/9097095092095096/A-Christmas-Carol-In-Prose-Being-a-Ghost-Story-of-Christmas-by-Charles-Dickens.pdf
    • http://loaminoo.linkpc.net/5090093091093092/Christmas-with-the-Poets-A-Collection-of-Songs-Carols-and-Descriptive-Verses-Relating-to-the-Festival-of-Christmas-from-the-Anglo-Norman-Period-to-the-Present-Time-by-Henry-Vizetelly.pdf
    • http://loaminoo.linkpc.net/7099093094092095/Christmas-Story-Part-1-Everyday-Like-Christmas-by-Koffi-Amouzouvi.pdf
    • http://loaminoo.linkpc.net/5090094099096091/Christmas-Once-Is-Christmas-Still-a-Christmas-Carol-with-Illustrations-by-Phillips-Brooks.pdf
    • http://loaminoo.linkpc.net/4096099097090091/Anne-Perry-s-Christmas-Vigil-A-Christmas-Promise-A-Christmas-Odyssey-Christmas-Stories-7-8-by-Anne-Perry.pdf
    • http://loaminoo.linkpc.net/1090090093096094098/A-Christmas-Carol-A-Ghost-Story-of-Christmas-New-2015-Deluxe-Edition-with-Illustrations-Audiobook-Link-Filmography-Voucher-and-Extra-Bonuses-Owl-Classics-8-by-Charles-Dickens.pdf
    • http://loaminoo.linkpc.net/3098096090097091/What-Child-Is-This-A-Christmas-Story-by-Caroline-B-Cooney.pdf
    • http://loaminoo.linkpc.net/3098095092096090/Chicken-Soup-for-the-Soul-Christmas-Treasury-for-Kids-A-Story-a-Day-from-December-1st-Through-Christmas-for-Kids-and-Their-Families-by-Jack-Canfield.pdf
    • http://loaminoo.linkpc.net/4098090095091090/Elijah-s-Angel-A-Story-for-Chanukah-and-Christmas-by-Michael-J-Rosen.pdf
    • http://loaminoo.linkpc.net/5090092095099090/Elijah-s-Angel-A-Story-for-Chanukah-and-Christmas-by-Michael-J-Rosen.pdf
    • http://loaminoo.linkpc.net/8090098096098099/Christmas-at-the-Caf-A-Gingerbread-Caf-Christmas-Wish-Upon-a-Christmas-Cake-by-Rebecca-Raisin.pdf
    • http://loaminoo.linkpc.net/3097094096092093/One-Christmas-Night-Highland-Christmas-A-Wife-For-Chris

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