Malicious PDF — malware analysis report

Static analysis result for SHA-256 1502512f84c4b742…

MALICIOUS

PDF

42.9 KB Created: 2020-08-10 01:32:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 900a24dcc937e35e20cd5f0bec92fd31 SHA-1: eda8a3d7280d9c351d1cb22d84439c0d1cc10d61 SHA-256: 1502512f84c4b742628a4e97ec91354cf668c7d4adfed6c18cd504084bbe9837
194 Risk Score

Malware Insights

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

This PDF file contains a large number of links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains URLs that appear to be part of an SEO link farm designed to lure users with search terms like 'symmetry worksheets pdf grade 1'. The primary redirector URL is https://ttraff.cc/pify?keyword=symmetry+worksheets+pdf+grade+1, which is likely used to distribute further malicious content or lead to phishing pages.

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=symmetry+worksheets+pdf+grade+1 In PDF document text
    • http://files.autumnlala.com/uploads/1/3/0/8/130813369/4381066.pdfIn PDF document text
    • http://files.beadvillechaska.com/uploads/1/3/0/8/130873829/5400236.pdfIn PDF document text
    • http://defam.simplyhomeco.com/uploads/1/3/0/7/130776760/bibiro.pdfIn PDF document text
    • http://fofapagof.danieleantoniella.com/uploads/1/3/1/4/131438641/javixufoselonuw-virafewo.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/1/0429/5586/6263/files/fobaxitoxirikujifabuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9302/3133/files/zomigewojelewofuruluge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/98981770021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5112/2842/files/90441596834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1926/2357/files/87642021110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8032/files/48853440387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8104/0033/files/vlc_codec_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/fezataledadapefukerikizow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9406/3770/files/8178187756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4782/1205/files/tenevafagotapixabotob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2842/7431/files/austrian_embassy_visa_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2698/0765/files/amiodarona_farmacologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/zojusoxawimexuveguzese.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 6

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_off000068b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B1 5836 bytes
SHA-256: 3fe8f4d9ac15a138f5d8beea9448fd6650138bb39446390b5a109a31aa328f64
font_01_sfnt_off00007c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 10072 bytes
SHA-256: 246a583f8bf9a1a2089c66cf3ab94f33b99fe778f31b02934205727a0627aef0

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