Malicious PDF — malware analysis report

Static analysis result for SHA-256 889dad1f7e5e931d…

MALICIOUS

PDF

33.3 KB Created: 2020-08-02 09:23:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9654d83f0cce8bb2a9bc131e927ce89 SHA-1: 6f905dfd4f31e4c8dc8d6728f3cbb1b311658591 SHA-256: 889dad1f7e5e931d079e90f81d1ec5a9a62b83b264fd8bb2f1a07b7bb7998b44
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm designed to redirect users to various PDF files, masquerading as academic downloads. The primary redirector URL, https://ttraff.cc/pify?keyword=elementary+classical+analysis+marsden+pdf+download, is identified as malicious. The document body and embedded link structures suggest a phishing attempt to trick users into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.cc/pify?keyword=elementary+classical+analysis+marsden+pdf+download In PDF document text
    • http://files.clarknorthart.com/uploads/1/3/0/9/130969148/6b789a674dd01ba.pdfIn PDF document text
    • http://files.greatsanddunes.org/uploads/1/3/1/8/131857465/gudekegej.pdfIn PDF document text
    • http://files.karenjrader.com/uploads/1/3/1/3/131380612/nakunenor-forij-vadadinigun.pdfIn PDF document text
    • http://files.adriftassemblages.com/uploads/1/3/1/4/131405977/1cdad8e6d77.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/nozubuvorododu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/73168189383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9471/9131/files/vegejelifogonuwodanonoguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/8884699263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/vifasevuzebifonitaretevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/bumulif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/types_of_analysis_in_fea_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/8509450699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0234/6148/files/35235307245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3685/1874/files/nabolekopokexasumoguroxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7689/3334/files/apple_usb_driver.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000445c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445C 5452 bytes
SHA-256: a72a34957b47cf1fdfdbab8c614108200f86a0a465b62953b980cf2a31cdf057
font_01_sfnt_off000056e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E8 9708 bytes
SHA-256: 95d0a98e33053d4862fd421e6b4a7eb591e89ec871fdf32f422beadc78f6562f

Open this report in the interactive analyzer, or submit your own file for analysis.