Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae202713a84cba25…

MALICIOUS

PDF

42.3 KB Created: 2020-08-12 16:39:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9757364472205e835e2e57abb9c4f822 SHA-1: 4a977f8369ac350082cedc993262eb441dd026db SHA-256: ae202713a84cba25ab9a5e5ffc3f61c90e872bd55e4fd727bc5743e44ea8b3ea
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=algebra+1+textbook+glencoe+pdf'. This indicates the document is designed to trick users into visiting a malicious site by presenting itself as a benign PDF. The presence of a large number of external links, many of which are to benign Shopify domains but some to unknown domains, further supports the SEO link farm heuristic. No scripts were extracted from this sample.

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=algebra+1+textbook+glencoe+pdf In PDF document text
    • http://files.difficultrunponyclub.org/uploads/1/3/1/8/131871535/xebavomamosoz-nisubejaga-jovotazagagijud.pdfIn PDF document text
    • http://files.artistsnorthfork.info/uploads/1/3/1/3/131380263/6827460.pdfIn PDF document text
    • http://gevisuz.europeanwoodworkers.com/uploads/1/3/1/6/131637814/4073659.pdfIn PDF document text
    • http://files.aben4ace.org/uploads/1/3/1/4/131406391/ca3ed87fc8b5ee7.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/1/0435/9333/4952/files/carbonium_ion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7645/files/cervical_spine_rehabilitation_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4500/1115/files/sample_cv_for_graduate_school_admission.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/zawogaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4912/3993/files/jump_throw_bind_csgo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/25566486824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8281/7441/files/commando_fitness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xugifewelogukepebokiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/booklet_printing_settings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3450/1535/files/watchmen_full_graphic_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/26655880391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8516/6760/files/xosew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/8686087734.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_off00005fba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FBA 5460 bytes
SHA-256: 6d69087cbdbc37f50ad58207a95c3324b51e5fdb20bd82f08358573ae7d04530
font_01_sfnt_off0000725c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725C 13388 bytes
SHA-256: f1cd961d1fc7d1db183accb301e1785ac9cfa8be15046712308fc9576148f1b9

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