Malicious PDF — malware analysis report

Static analysis result for SHA-256 416bca040587a02d…

MALICIOUS

PDF

67.9 KB Created: 2020-08-07 22:54:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce0367ec4924d33940ced3ca76784369 SHA-1: 399e7105ca4ff3ee0dc1630ac534f927587c2f5e SHA-256: 416bca040587a02d58f28f4e4b20f4273516d4cbade65c7a7a55f89d9f86b07c
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as a link farm for SEO purposes, all redirecting through a malicious URL. The document body itself contains the malicious URL, suggesting an attempt to trick users into clicking it for a supposed PDF download. The ML classifier strongly indicates maliciousness.

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=discrete+probability+distribution+pdf In PDF document text
    • http://files.viewsfromthejumpseat.net/uploads/1/3/2/6/132695575/najimejo-rivizotipikoka-fitev-venafafodugibid.pdfIn PDF document text
    • http://files.mrwillpe.com/uploads/1/3/1/4/131483361/kadosiwowuvixe_wutenizinojupa_fatesupijiji.pdfIn PDF document text
    • http://files.goodatlooking.com/uploads/1/3/0/9/130969200/7445030.pdfIn PDF document text
    • http://files.alanbirtwistle.com/uploads/1/3/1/3/131383664/werox_xapedewero_bemidituziv_zurer.pdfIn PDF document text
    • http://posafimo.darnisart.com/uploads/1/3/1/4/131408738/6130462.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/1/0429/3446/8774/files/nivem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/57950274315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7246/1727/files/89597014138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/gevefadetumemaxuzuwipol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0197/files/surah_al_mulk_full_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/20175198840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/finale_export.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/monthly_calendar_2020_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB49 5392 bytes
SHA-256: e7632e1324a279d46a6ad17878ddd0f5c0dea148eb693f20d725b9ca308ccc99
font_01_sfnt_off0000bdb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB6 14228 bytes
SHA-256: 7a31a85134b5584f6e826024b662b55c6c5944887ffd94560657dee38666ff10
font_02_sfnt_off0000eb6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6A 16524 bytes
SHA-256: a6d22f72f7ec6c4f8acbb17f39beea26fb87b184be7f97f25fe001e39180d6d5

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