Malicious PDF — malware analysis report

Static analysis result for SHA-256 6612818d0586e6f2…

MALICIOUS

PDF

57.8 KB Created: 2020-08-16 02:18:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 77c1e5121626cf71481d2cdecf5bbdb5 SHA-1: a4e918bd2fb743f69fec4cf4f504909dc47333e4 SHA-256: 6612818d0586e6f20eb4e0a9b5d4ea9e7c73839f9e10441ccc60d992792d0ae3
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to an SEO redirector infrastructure. The primary redirector URL, https://ttraff.ru/wb?keyword=historia%20da%20tuberculose%20pulmonar%20pdf, is flagged as malicious. The document body also contains this URL and other Shopify links, suggesting a phishing or scam attempt to redirect users to malicious content. No scripts were extracted, but the presence of malicious redirectors indicates a high likelihood of a phishing or malicious content delivery scheme.

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.ru/wb?keyword=historia%20da%20tuberculose%20pulmonar%20pdf In PDF document text
    • http://files.polillio.com/uploads/1/3/2/7/132740270/bazijowexamajed_bexunoru_kapixu.pdfIn PDF document text
    • http://files.golfcarsunlimitedlakecharles.com/uploads/1/3/1/4/131406498/5904548.pdfIn PDF document text
    • http://files.bluelotusbeadwork.com/uploads/1/3/0/7/130775109/nurefurabor.pdfIn PDF document text
    • http://files.meredithbledsoephd.com/uploads/1/3/1/4/131438202/273fe5bbd31.pdfIn PDF document text
    • http://files.cruzlaclothing.com/uploads/1/3/1/3/131381721/2074945.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/1/0433/4102/1334/files/blasphemy_novel_tehmina_durrani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8959/5287/files/7708054329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7986/8309/files/cateter_venoso_central_tipos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/33724959121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9952/1181/files/6332495595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6957/8147/files/dagukojitipunowad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9235/1907/files/wuzisozaregojalulunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3778/4229/files/surikimudojepomux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/55988837988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/wovudezufadabomopumivime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/9584231254.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 8

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_off00009f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F3E 5404 bytes
SHA-256: 5785f1d6e8390302bf60d9a77de30e38d70db70eb802864708ade0e6e3f9a36a
font_01_sfnt_off0000b179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB179 13024 bytes
SHA-256: af30b4e6641b776a14cdb9ca116b9bc030d95fbda312d8651461cd888aefcd7b

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