Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd0ac60c98df8f3…

MALICIOUS

PDF

42.9 KB Created: 2020-08-19 18:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4ea3790cc1a258fb7a7a9b37db4092b SHA-1: 0f5b2b181d9c8843b3b63b8c151efa8ef547255d SHA-256: 7fd0ac60c98df8f3085f32096f909b098e0f37d72324586064970b8fbae199f6
194 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to a redirector service, which in turn leads to a large number of PDFs hosted on Shopify. The primary redirector URL is identified as malicious. This indicates a link farm or SEO poisoning attack designed to drive traffic to potentially malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=measurement+conversion+worksheets+6th+grade In PDF document text
    • http://mipokuw.wpcbuildingservices.com/uploads/1/3/0/9/130969808/1699188.pdfIn PDF document text
    • http://files.keithingtonbryant.com/uploads/1/3/1/4/131407890/widalukit_seledigibilu_gokepazopatoji_fumunajowuviro.pdfIn PDF document text
    • http://files.alyssadavisillustration.com/uploads/1/3/1/6/131607777/jabagoborujomumu.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/1/0430/9676/8665/files/dabamujozapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/wodevebofupubapuwenej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3311/6317/files/effortless_english_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6495/0945/files/7655233043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/kezaroveji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/peptic_ulcer_nursing_care_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/3732977613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5932/2773/files/math_worksheet_answers_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7702/6463/files/start_up_a_nation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9203/files/xazujixakidopijadudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/lejupugavixipekagonulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2383/7856/files/school_vocabulary_flashcards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9952/9120/files/16438955309.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 4

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_off000067f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F7 5696 bytes
SHA-256: 6fc99b6e2ae843a6bff34f30f69da18e5f8d2c18acfb434bbf010d3cbab35994
font_01_sfnt_off00007b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B48 10288 bytes
SHA-256: c5ee93f2db5edc4a010614c52ace432741a25a176a661fa889c76efe5292941a

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