Malicious PDF — malware analysis report

Static analysis result for SHA-256 9274f9e4502ff837…

MALICIOUS

PDF

45.8 KB Created: 2020-08-21 05:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd8af9afd8a080c2e5fe975021bd214f SHA-1: 144b6de06226d27fe34cddedc5ca63a08b4f44f6 SHA-256: 9274f9e4502ff837ab84b1a2fcda5a90fe48fbd0d1319683104976e90b411ab5
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic. This suggests the PDF is designed to lure users into clicking through to malicious sites, likely for phishing or malware distribution.

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=borland+c+5.+02+free In PDF document text
    • http://files.jamesdonlon.com/uploads/1/3/2/6/132682542/15e733b0.pdfIn PDF document text
    • http://nuwen.lornathomasphotography.com/uploads/1/3/1/6/131607095/nosure_jijurijilazo.pdfIn PDF document text
    • http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdfIn PDF document text
    • http://files.ccmooresville.com/uploads/1/3/1/3/131381819/tanupip.pdfIn PDF document text
    • http://zunazab.michelle-turner.net/uploads/1/3/1/0/131070374/bizuzu.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/1/0428/9835/8432/files/koxumugude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9058/files/67377193580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9317/9030/files/sap_business_one_blueprint_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/bamukenusamasupeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4849/3205/files/char_broil_patio_bistro_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/42418846145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7728/files/45219289661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5512/6430/files/edcite_answer_key_geometry.pdfIn PDF document text
    • http://d2.alternativeto.net/dist/s/672d9b4a-24c5-e111-bcba-0025902cIn 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_off0000669e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x669E 5316 bytes
SHA-256: d2be001f996a9b150e910d6ae9b46b8324ab470a0c3a69aad877e0a605045445
font_01_sfnt_off000078bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78BF 16596 bytes
SHA-256: d953ea06a3b5c8d763140f71091e105c46cf65abe2009facbed18bc5273409a6

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