Malicious PDF — malware analysis report

Static analysis result for SHA-256 0630c550476ed771…

MALICIOUS

PDF

48.9 KB Created: 2020-08-08 16:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 245adc58513ce5db803da665000c1da6 SHA-1: 0def6c438d593ac86c6cb71f4f8495ca4d996adc SHA-256: 0630c550476ed7718fd874e2b0b68f6baf35121fd1131e9cf18cbc6c57e3e1f1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body and heuristics suggest a lure for downloading other PDF files, likely as part of a phishing or SEO spam campaign. No scripts were extracted, but the presence of malicious redirector links indicates a high likelihood of further malicious activity.

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=algebra+1+regents+2020+pdf In PDF document text
    • http://files.carrollcountyfarmersmarket.org/uploads/1/3/1/4/131406403/nurimewi_tuxana.pdfIn PDF document text
    • http://files.mimoophoto.com/uploads/1/3/2/6/132680813/539b95f7ad4.pdfIn PDF document text
    • http://files.kristinescreationsonline.com/uploads/1/3/1/6/131606890/wegekazapalopinen.pdfIn PDF document text
    • http://nimoma.calloyd.com/uploads/1/3/2/8/132816202/9876371.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/1/0439/5103/0430/files/93503282408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9562/1781/files/7407839005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/nubezijuxetunafaxumipub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/33664448750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6933/3916/files/basotivoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4521/5656/files/tonilajumozegab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1481/5901/files/2160652391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/52477901244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5177/8197/files/angustia_graciliano_ramos_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/zifaxunajazolaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4858/1782/files/76348863980.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_off00007e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E7B 5664 bytes
SHA-256: 4df683b5238671850285b4fa24b8b1ee769dfdd6c6a43107de58f39e955f302f
font_01_sfnt_off000091d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D5 10868 bytes
SHA-256: baab6ef65edac4971b4c75aa81ab54e5ededd6bbe4b68413bf8c1cfb1dd7103d

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