Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d68a593c4655592…

MALICIOUS

PDF

36.2 KB Created: 2018-06-11 09:46:17 -04:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7) First seen: 2020-08-10
MD5: 16d4a6e90a90123decc55a32f1c01577 SHA-1: d5c85da2a77185e4e49b89e5a3469daec8cee386 SHA-256: 2d68a593c4655592c328748b53794f05397e40a3e5d1b245e06e571731909148
130 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains external URIs pointing to a suspicious domain, uncpbisdegree.com, which is likely used to host a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence. The document body and embedded URLs suggest a lure related to 'the enlightenment' to trick users into downloading the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9136

Heuristics 4

  • Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOAD
    The ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
  • PDF carries a PHP-gateway SEO-spam PDF link farm medium PDF_SEO_PHP_GATEWAY_LINK_FARM
    PDF contains four or more clickable links whose target is a `.php` gateway with a multi-word search-PHRASE document slug embedded after it (e.g. 'index.php?.../binary+options+trading+nz.pdf' or 'pdf.php/cialis-dosage-side-effects.pdf'). Legitimate PHP-served documents use a filename or numeric id, not a search-query phrase, so this is the generated SEO link-farm shape — pharma / binary-options / 'free download' spam that ranks for queries and routes users into payload/redirect chains. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://uncpbisdegree.com/download3.php?q=the-enlightenment-and-why-it-still-matters.pdf In PDF document text
    • http://uncpbisdegree.com/download4.php?q=the-enlightenment-and-why-it-still-matters.pdfIn PDF document text
    • https://liveanddare.com/spiritual-enlightenment/In PDF document text
    • http://www.thedarkenlightenment.com/the-dark-enlightenment-by-nick-land/In PDF document text
    • https://www.lionsroar.com/what-is-enlightenment-2/In PDF document text
    • http://endless-satsang.com/spiritual-enlightenment-spiritual-awakening.htmIn PDF document text
    • http://www.acmuller.net/bud-canon/sutra_of_perfect_enlightenment.htmlIn PDF document text
    • https://boardmatters.com.au/In PDF document text
    • http://bhagavadgitasummary.com/In PDF document text
    • http://www.3ammagazine.com/3am/why-marxs-philosophy-but-not-his-economics-matters-now/In PDF document text
    • http://www.jasoncolavito.com/blog/review-of-enlightenment-now-by-steven-pinkerIn PDF document text
    • http://happinessinternational.org/what-is-happiness/In PDF document text
    • http://brotherofyeshua.com/covenant.htmIn PDF document text
    • http://www.rogerdarlington.me.uk/nfbooks.htmlIn PDF document text
    • http://riverside-resort.net/1/timbuktu-paul-auster.pdfIn PDF document text
    • http://riverside-resort.net/1/true-stories-of-the-korean-comfort-women-cassell-global-issues.pdfIn PDF document text
    • http://riverside-resort.net/1/the-other-side-of-loss.pdfIn PDF document text
    • http://riverside-resort.net/1/splinter-and-other-poems.pdfIn PDF document text
    • http://riverside-resort.net/1/the-confederacy.pdfIn PDF document text
    • http://riverside-resort.net/1/transitional-justice-in-balance-comparing-processes-weighing-efficacy.pdfIn PDF document text
    • http://riverside-resort.net/1/spacesuits-the-smithsonian-national-air-and-space.pdfIn PDF document text
    • http://riverside-resort.net/1/the-terrible-and-wonderful-reasons-why-i-run-long-distances.pdfIn PDF document text
    • http://riverside-resort.net/1/the-angel-stone-fairwick-trilogy.pdfIn PDF document text
    • http://riverside-resort.net/1/taxation-and-public-finance-in-transition-and-developing-economies-reprint.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.columbia.edu/acis/ets/CCREAD/etscc/kant.htmlIn PDF document text
    • https://en.wikipedia.org/wiki/Age_of_EnlightenmentIn PDF document text
    • http://www.collective-evolution.com/2018/04/20/why-psychedelics-are-not-a-shortcut-to-enlightenment/In PDF document text
    • http://slatestarcodex.com/2018/04/19/gupta-on-enlightenment/In PDF document text
    • https://en.wikipedia.org/wiki/Spanish_Enlightenment_literatureIn PDF document text
    • http://freebeacon.com/culture/enlightenment-meh/In PDF document text
    • https://smarthistory.org/a-beginners-guide-to-the-age-of-enlightenment/In PDF document text
    • https://www.amazon.com/Power-Now-Guide-Spiritual-Enlightenment/dp/1577314808In PDF document text
    • https://www.amazon.com/Alternative-Medicine-Books/b?ie=UTF8&node=4696In PDF document text
    • https://www.washingtonpost.com/news/answer-sheet/wp/2017/10/18/why-we-still-need-to-study-the-humanities-in-a-stem-world/In PDF document text
    • https://marginalrevolution.com/marginalrevolution/2018/02/enlightenment-now-new-steven-pinker-book.htmlIn PDF document text
    • https://plato.stanford.edu/entries/adorno/In PDF document text
    • http://www.resnet.wm.edu/~jjwack/history.htmlIn PDF document text
    • http://www.iep.utm.edu/rousseau/In PDF document text
    • https://www.historytoday.com/stephen-clarke/industrial-revolution-why-britain-got-there-firstIn PDF document text
    • http://slatestarcodex.com/2013/04/10/book-review-after-virtue-or-somebody-here-is-really-confused-and-i-just-hope-its-not-me/In PDF document text
    • http://www.csszengarden.com/In PDF document text
    • https://www.washingtonpost.com/national/t-h-e-h-o-m-e-c-o-m-i-n-g/2017/09/02/da59db82-88dd-11e7-961d-2f373b3977ee_story.htmlIn PDF document text
    • http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
    • https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BE 9796 bytes
SHA-256: 965a0ee27ef1cf3e3a3344ae391941e6276c37be20c3d6320913d205e639442b
font_01_sfnt_off00007211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7211 7072 bytes
SHA-256: a3dfa6e1fbb7c97fadc36c0edaccf1c90507d686ac8774d2deca7b91fd895bb8