Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd53a9198fa6c0dd…

MALICIOUS

PDF

49.0 KB Created: 2020-08-16 19:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 967fc6656fcb55e87c94b66ed03fb915 SHA-1: 9f3b861ee892a76022af575a44da7e5452c4bfdd SHA-256: bd53a9198fa6c0dd54d914d2e97ab706c0cb0d07da3b935dc0a86afdfa41b562
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, designed to appear as legitimate content. The primary embedded URL, https://ttraff.cc/pify?keyword=american+college+of+gastroenterology+guidelines+gerd, is identified as a malicious redirector. This suggests the document's purpose is to trick users into clicking the link, leading them to malicious infrastructure.

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=american+college+of+gastroenterology+guidelines+gerd In PDF document text
    • http://files.citrusandmintdesigns.com/uploads/1/3/0/8/130814769/7994026.pdfIn PDF document text
    • http://files.hawaiistylecheer.com/uploads/1/3/1/3/131379014/judadebinetuzi-zotedusemuku-ziwusonevedaxen.pdfIn PDF document text
    • http://files.kyleskamp.org/uploads/1/3/1/3/131379724/5e7023.pdfIn PDF document text
    • http://files.artscienceexhibits.com/uploads/1/3/1/3/131384414/c0fd30eb0.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/1/0433/6992/2714/files/45955858449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0560/8099/files/exploracion_nervio_facial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/jiginu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5149/9170/files/academic_coordinator_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5309/files/31207656582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/fivekarijex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/muveleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/fimusodifagewedowil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/68571591693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9027/1642/files/53267358509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/20316312129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/dizimikobuvifo.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_off00007e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E54 5432 bytes
SHA-256: 6f53e334143254b92cc5b4a298118bf1c810bb2ecb0fa2c25040b3e477505482
font_01_sfnt_off000090b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90B1 11628 bytes
SHA-256: 070b31130d3fe6871df77d68a382b0c0146b6a4bd38d5354d94126de83022db6

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