Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2f46acd7eabc14…

MALICIOUS

PDF

37.6 KB Created: 2020-08-28 13:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0f833ef498187d72716b0cb52bcb360 SHA-1: b8dca12a2057fc310dd078c137f860f2a64d16d6 SHA-256: ca2f46acd7eabc14409c00ebf0a9e836ec73317f53b9d0ce637dd425022287a4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm designed to redirect users to potentially malicious content, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary redirector URL is https://ttraff.cc/pify?keyword=index+chaos+8th+edition+pdf, which is part of a larger SEO link farm strategy. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this document is part of a phishing or scam campaign.

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=index+chaos+8th+edition+pdf In PDF document text
    • http://files.zennarobarbara.com/uploads/1/3/1/4/131406558/8757112.pdfIn PDF document text
    • http://zofun.kumquatcoffee.com/uploads/1/3/0/8/130814328/5231571.pdfIn PDF document text
    • http://files.thehumblehumanist.com/uploads/1/3/1/4/131437474/5412546.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/1/0432/5454/6590/files/ielts_band_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/30588682268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/40887387424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4626/3201/files/arabic_to_urdu_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/5432/6937/files/asexual_reproduction_by_spore_formation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2760/3354/files/science_fusion_grade_4_teacher_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/fortnite_template_for_cake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5922/4480/files/fixufuxagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6995/5486/files/10543916685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3880/8991/files/83777821432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lalosukiwafigoledexefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3862/2375/files/fosuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1753/4629/files/43735684262.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 2

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_off0000541e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x541E 5312 bytes
SHA-256: 23ba441c6256032f56d014fd8c6a7a0e0a0a12e8bd3a5f4d6470432c45016809
font_01_sfnt_off00006630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6630 10420 bytes
SHA-256: 9732b07b74340f5536f9f3c554ca2807f2db0299f32f5ee701de1ab5bdea3d2c

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