Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f7a77209dfc4f4…

MALICIOUS

PDF

40.7 KB Created: 2020-08-24 00:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9384458ebd61ae553d284dafcff2a60f SHA-1: f75c8d8be4444f9af67f3d9d90929dcba47416cc SHA-256: 16f7a77209dfc4f473c5b1d6e7cb07bcbb90d404e2e422a9358ec1086783929e
194 Risk Score

Malware Insights

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

This PDF document contains a mass of external links, many of which point to a redirector infrastructure. The primary redirector URL, "https://ttraff.cc/pify?keyword=video+from+site+safari", is known to be malicious. The document body text, though heavily obfuscated, contains this URL and other links, suggesting an attempt to lure users to malicious content. The ML classifier also strongly indicated 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=video+from+site+safari In PDF document text
    • http://files.mbtaiji.net/uploads/1/3/0/8/130873851/1363479.pdfIn PDF document text
    • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdfIn PDF document text
    • http://files.poppyavenueboutique.com/uploads/1/3/1/1/131163914/dozixudawux_panajuzopivixo_sexirekafa_somirubugupor.pdfIn PDF document text
    • http://xopiselon.carolguzman.com/uploads/1/3/0/8/130874422/3146600.pdfIn PDF document text
    • http://files.joannasholistictreatmentclinic.com/uploads/1/3/1/4/131438274/0a14f.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/1/0438/0049/4237/files/kewelonagosexafoloje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/problem_solving_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/radasibemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/43307624111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/55481291024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6102/6719/files/19549849167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5363/7018/files/zinobeloj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2987/3318/files/38451204137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6859/6117/files/93393429997.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_off000063c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C8 4988 bytes
SHA-256: 8f0a171fd742e1490deedd34e423cc5135eaf703127129a3f3182080aa5e85f5
font_01_sfnt_off000074a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A6 9868 bytes
SHA-256: 34add20e4ad6b5eeb6a59f3abaa89910ca3003977184634f8fa83736c0796bb9

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