Malicious PDF — malware analysis report

Static analysis result for SHA-256 507d6ab9b89a4908…

MALICIOUS

PDF

43.8 KB Created: 2020-08-23 14:25:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00cadb124364fce0079acb90d77518ea SHA-1: 3bb2cc94d9ff34389934424b7afd3dc8c0012a3b SHA-256: 507d6ab9b89a490858bb22e8f3629d514e3ca496545ba4473d9fec80cc202fc6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a link farm designed to lure users with search engine optimized content, ultimately redirecting to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=eureka+math+3rd+grade+printable+worksheets. This indicates a phishing or scam attempt leveraging SEO techniques to distribute malicious links.

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=eureka+math+3rd+grade+printable+worksheets In PDF document text
    • http://kaguwis.store.easy-editor.com/uploads/1/3/1/6/131606666/ganuzu_sajiguxomuxif_pumulujofi.pdfIn PDF document text
    • http://files.fotographia.ch/uploads/1/3/1/6/131606652/7855149.pdfIn PDF document text
    • http://files.abbi.ca/uploads/1/3/2/6/132681796/vevefakak.pdfIn PDF document text
    • http://files.johnholmgren.com/uploads/1/3/1/3/131379591/9280617.pdfIn PDF document text
    • http://files.sheercrystalbellydance.com/uploads/1/3/2/8/132814680/lekoxe.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/texirid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6783/4517/files/like_a_bridge_over_troubled_water_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0449/7818/files/blouse_designs_photos_new_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3072/1190/files/buvodoxobaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7514/0761/files/51608052014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6711/7463/files/ditarekej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5583/9392/files/31184447452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7266/0390/files/mixutarorudakax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1617/4237/files/java_sort_string.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_off00006706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6706 5788 bytes
SHA-256: 8cc623b90c03863d4010471a4760f993b4c9ce28ed92010cdeb031d7cbaa7604
font_01_sfnt_off00007aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA6 11772 bytes
SHA-256: ac568116100e149cd68d6d3fa8313799ddd91af9373111a6f1b175759c3f567a

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