Malicious PDF — malware analysis report

Static analysis result for SHA-256 19066238c9101e6a…

MALICIOUS

PDF

33.2 KB Created: 2020-08-22 07:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e84c6ff5d897ab6a31b0fcb39fbcedb2 SHA-1: 368bd85f0092ef40cb730e53fc3071c43ed5eaa4 SHA-256: 19066238c9101e6a70e502a68b0c66f361f2cdb21f474856bb257f97bdd91030
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are SEO-optimized and redirect to a malicious URL. The primary redirector URL is `https://ttraff.cc/pify?keyword=knauf+fiberglass+insulation+data+sheet`. The document body appears to be corrupted or heavily obfuscated, but the presence of numerous links and the critical heuristic firings strongly indicate a phishing or scam attempt designed to redirect users to malicious infrastructure.

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=knauf+fiberglass+insulation+data+sheet In PDF document text
    • http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdfIn PDF document text
    • http://xubaxe.albanyems.com/uploads/1/3/1/4/131409909/falekebinikati_vejojabifak_fapuk.pdfIn PDF document text
    • http://files.catharinegellings.com/uploads/1/3/1/1/131163635/degodopevoveb_kiluwagezisogar.pdfIn PDF document text
    • http://notufu.atlanticblueaquariums.com/uploads/1/3/1/6/131606490/digamezabirikifigije.pdfIn PDF document text
    • http://files.zenfreshcleaning.com/uploads/1/3/0/7/130775698/6084297.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/1/0433/1687/1333/files/24852313981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7396/8030/files/86323214196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/guwejodefazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/wwe_13_roster.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1964/8680/files/adobe_reader_dc_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2271/9912/files/jupifisojadufebiradufapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3554/1151/files/organization_theory_and_design_11th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8950/7990/files/bovajadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3039/5552/files/xosakanemobawopuk.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_off000043be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BE 5276 bytes
SHA-256: d35da776c1ae0c3ddb3e7d65cef375ac444ee92fb263cbe342afde3c8050a260
font_01_sfnt_off000055a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A4 10064 bytes
SHA-256: dd6bb0d280dc3ef84b82bc32e132595d72cfcde43db45182a55048f5d25cd96c

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