Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a8082f51f87edf…

MALICIOUS

PDF

46.5 KB Created: 2020-08-06 16:24:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1f165b828962c07975c1f85b8b83e07 SHA-1: d1b751d436403e3f03b410bdca7142cb475b8cf7 SHA-256: 09a8082f51f87edf5ddcb8906aea9d30d95ea29975beb33d92be4db902d84d12
194 Risk Score

Malware Insights

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

This PDF document contains numerous links to external PDF files, many of which are hosted on what appears to be a link farm designed for SEO manipulation. The primary redirector URL, 'https://ttraff.cc/pify?keyword=brief+answers+to+the+big+questions+pdf', suggests a phishing or malware distribution lure. The document body, though heavily obfuscated, contains references to the same redirector and appears to be generated by wkhtmltopdf, a tool often used to create PDF documents from web 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.cc/pify?keyword=brief+answers+to+the+big+questions+pdf In PDF document text
    • http://files.syndicategg.org/uploads/1/3/2/6/132681294/zozitinafubif_zetuwopisu_jofepagurowom.pdfIn PDF document text
    • http://todemov.prodajproductions.com/uploads/1/3/0/8/130874284/7663845.pdfIn PDF document text
    • http://files.shadesofdenimaus.com/uploads/1/3/1/6/131636655/7a04b90ef2f.pdfIn PDF document text
    • http://files.lionsdiabetesawareness.org/uploads/1/3/0/7/130739398/gibozomupeti_dewudon.pdfIn PDF document text
    • http://files.womencliniccentre.com/uploads/1/3/0/8/130813696/bijovigisezuramazo.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/1/0432/2770/9597/files/59866314401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9851/4343/files/bunupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/luvalavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3502/5831/files/87713416992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/54707836717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wowivitotorinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5809/2439/files/27542335251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/58683464594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/52882815047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6699/0498/files/15741084204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/tamegoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/13085591465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9619/3686/files/davadeliwu.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_off000076cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CB 5676 bytes
SHA-256: cdee5f41c69770cc89894917dbb13d59d71df4e68d082e529cb3231d8133388f
font_01_sfnt_off00008a16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 10172 bytes
SHA-256: 5480ab1b16c4b2506045b749d206e2bb136f9b9187f466b04fa7cb2f58f829d6

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