Malicious PDF — malware analysis report

Static analysis result for SHA-256 24324f7de3742815…

MALICIOUS

PDF

53.2 KB Created: 2020-08-02 08:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1b2500cbd9e34dbed0546997108c563 SHA-1: 6189a56378c306945c8bddd1f40899582c3020a0 SHA-256: 24324f7de37428156bb463298b36da57dbd90c4322953e3bfefdeff9ca29b60f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=valid+addresses+in+usa'. This URL is presented within the document body, disguised as information about 'valid addresses in usa'. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.

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=valid+addresses+in+usa In PDF document text
    • http://files.charlesherndon.com/uploads/1/3/1/0/131070356/ae32acd15.pdfIn PDF document text
    • http://files.fhicks25.com/uploads/1/3/1/8/131871849/kubirofirevuduvozuba.pdfIn PDF document text
    • http://files.kontagious.net/uploads/1/3/1/3/131381612/faxalu-taxexosu-jikobusone-lupaxuxewa.pdfIn PDF document text
    • http://files.hfnyourvoice.uk/uploads/1/3/1/4/131482864/4828027.pdfIn PDF document text
    • http://files.symmetry-careers.com/uploads/1/3/1/3/131383283/nuvaxojotujejaxusi.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/1/0433/5799/5160/files/65209522269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/98193039583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5636/files/97280873948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/zalilusirebokim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/ramijaxidara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5344/9367/files/20081756148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/62551488737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5676/6882/files/32104525022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/57923908619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxupajajivamuwiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/risekumomivedopela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/fofolosis.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_off000086b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B6 4784 bytes
SHA-256: dd28eea77242585669c8bd79136e8f439f401d2ba78cd18bf458e6572d6d77c8
font_01_sfnt_off00009701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9701 16068 bytes
SHA-256: 823d1944bea1fae3461038e48df06fbd75c3cdbadb50f636b85e6d4e16b51795

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