Malicious PDF — malware analysis report

Static analysis result for SHA-256 83ed67285fbf0009…

MALICIOUS

PDF

42.2 KB Created: 2020-08-19 20:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7127ddb16f8390cec60940f5f4a0f343 SHA-1: 99e91c09cb970810e615d6e6a486b9b961c11a9c SHA-256: 83ed67285fbf000955562d3690ec8b922fed1e8d5859d70f71ba06b2bfd208ec
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link. The document body, though obfuscated, contains text suggesting a lure related to a 'toxicology report' and includes the primary malicious URL. The ML classifier also strongly indicated maliciousness. The presence of numerous links, many pointing to external PDFs, suggests a link farm or redirection strategy to distribute malicious content.

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=toxicology+report+kylie+rae+harris In PDF document text
    • http://files.nphsjrwolfpack.com/uploads/1/3/1/4/131483253/pageponiputi_gosalobire_vopepas_fatibo.pdfIn PDF document text
    • http://files.terrafuller.com/uploads/1/3/0/7/130739916/pisunumuno.pdfIn PDF document text
    • http://files.lisamccafferty.com/uploads/1/3/1/3/131383664/bamibitamurata.pdfIn PDF document text
    • http://pirur.marthomawashington.com/uploads/1/3/1/4/131437792/9214208.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/1/0429/7749/3146/files/65425228498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/megetuvefitirikikiwuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dobemajafapurotexujebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7328/9894/files/sample_business_plan_construction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0098/6787/files/livro_piscicultura_fundamental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/dezaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9047/files/2020_hindu_calendar_september.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4436/files/46169501899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4381/4556/files/likif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/tamofegasade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/32273491133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4863/9391/files/23094107369.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_off0000658d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658D 5376 bytes
SHA-256: c969a5d823eaf43f26a39a78f4eeefdb19b9d55e96660800bcdbe036f781e03d
font_01_sfnt_off000077db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DB 10572 bytes
SHA-256: c49e5c10bbac753ae12effddd4881e84f836041dcb5fa390ac9558ed73756385

Open this report in the interactive analyzer, or submit your own file for analysis.