Malicious PDF — malware analysis report

Static analysis result for SHA-256 85e1f26d53863d00…

MALICIOUS

PDF

33.8 KB Created: 2020-08-19 20:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f2fc5d08e71471d3d61abea2723efe1 SHA-1: 7e2fede8e292aac017427484583491904447f3f8 SHA-256: 85e1f26d53863d00e70d7c0ef1575f101a54ac724fa67b41c70f147d7d503f5e
194 Risk Score

Malware Insights

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

This PDF file contains a malicious redirector link disguised as a provider change form. The link, https://ttraff.ru/pify?keyword=amerihealth+caritas+provider+change+form, is designed to lead users to potentially harmful content. The PDF also includes numerous other links, many pointing to Shopify-hosted PDFs, suggesting a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly indicates 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.ru/pify?keyword=amerihealth+caritas+provider+change+form In PDF document text
    • http://jomatofa.cardiffmetcricket.com/uploads/1/3/0/7/130740510/nuxufopopixelegijadi.pdfIn PDF document text
    • http://files.mrslorenzscience.com/uploads/1/3/2/6/132681826/762982.pdfIn PDF document text
    • http://files.jonathancrobinson.com/uploads/1/3/0/7/130775983/legobafel-fafifodemita-fafilesipekuz.pdfIn PDF document text
    • http://files.pixlfurniture.com/uploads/1/3/2/6/132682235/zasefivegudobibe.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/1/0432/6785/0390/files/24120073433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/roxinijosebedizekobegubum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1779/7785/files/mizatuxobido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3343/6071/files/bifepekusifaliwidizulep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8312/8214/files/romisulilid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/contract_closeout_report_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6685/8408/files/peraneduvam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/english_grammar_in_use_elementary_supplementary_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1197/9939/files/assistive_technology_in_the_classroom_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/71956120454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/88036991122.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
🗂 Part of campaign: grapesociety.org 3 samples

Related samples 3

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_off00004846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4846 5620 bytes
SHA-256: 3b01e74c47e52dbe7e472c38f33505a9f9faf2d902b920e8e425d4c304d22f5a
font_01_sfnt_off00005b39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B39 9044 bytes
SHA-256: 654fa3a3681b339d8b8b8dc378b198a1ab7ec85ccc0fb30a22716e4b3313f989

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