Malicious PDF — malware analysis report

Static analysis result for SHA-256 3434b64776d3c5b4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-24 22:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8dfadbb91fff76ca8aca49de023aae3 SHA-1: f72dbcebe55d120d9898a682d1db98544fc91c55 SHA-256: 3434b64776d3c5b4bbb6a5f48d692e32615b3f7580858417c275c5a6524eeaf4
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as educational material. The ML classifier strongly flagged this PDF as malicious. The embedded URL https://ttraff.com/pify?keyword=common+core+standards+math+grade+5+worksheets is identified as a malicious redirector, likely leading to a phishing page or malware download.

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.com/pify?keyword=common+core+standards+math+grade+5+worksheets In PDF document text
    • http://muvarepu.hemicarbs.net/uploads/1/3/2/8/132814975/nufot-raloxuji-bagez-fedaviripalog.pdfIn PDF document text
    • http://files.marialosee.com/uploads/1/3/2/8/132815148/gulebunil.pdfIn PDF document text
    • http://mogodaze.newthaiart.com/uploads/1/3/1/4/131454215/8653989.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/1/0428/9835/8432/files/72593533024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3229/6089/files/analogy_and_classification_questions_for_ssb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4885/files/78309708799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3258/2056/files/35145289792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9315/6259/files/96334994743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/buliwolasiladodix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2683/1784/files/11208241716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/9154/2423/files/vande_mataram_hd_video_abcd_2.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 7

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_off0000607b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x607B 5508 bytes
SHA-256: be301c710d6a5a84dde8eee5480ca30528cb32bbd90352201b9eccba8ff71141
font_01_sfnt_off00007313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7313 15284 bytes
SHA-256: bd49c075e4ea6d797c00251896874b2c1fdf1236612e58c6d06c821fb5cc61f4

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