Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce625b0379f96fd…

MALICIOUS

PDF

42.4 KB Created: 2020-08-10 07:44:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 53dcf36c2a9970c9c35d89ae40975637 SHA-1: ff8557a5d0b52ef4a0f406b4a6557a0dc48ae662 SHA-256: 6ce625b0379f96fd503f64b561d1acfaea3d2d4d85c933c02875e5de1f588fbd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL, https://ttraff.ru/pify?keyword=general+aptitude+questions+pdf+free, is used to lure victims with a fake download. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content.

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/pify?keyword=general+aptitude+questions+pdf+free In PDF document text
    • http://files.medicareyourway.com/uploads/1/3/0/8/130874240/xemulerasitemebu.pdfIn PDF document text
    • http://files.hvamusic.org/uploads/1/3/2/7/132712661/6d35c0f37.pdfIn PDF document text
    • http://fuzetu.ababehavioursolutions.com/uploads/1/3/1/4/131437615/ee8b7fa.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/1/0429/4826/4089/files/91223909948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6982/3390/files/wuxegupobobotuxepagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/siluwikewazekes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/pebizemekeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5202/3458/files/45677428973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/pocetak_bune_na_dahije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0873/5907/files/surah_al_mulk_dan_artinya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/degradacion_ambiental_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2730/7416/files/37573291991.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_off00005e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8E 5192 bytes
SHA-256: f1f74df23c064c503ddc1a7b045117d596f035600045010bfb7ff2b108ef491b
font_01_sfnt_off00007046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 14628 bytes
SHA-256: 5ce0223a186c9327473e9da6bc13a82fdb76691e93e4c972429cb3010bffe938

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