Malicious PDF — malware analysis report

Static analysis result for SHA-256 04caff2d759967a1…

MALICIOUS

PDF

51.2 KB Created: 2020-08-19 08:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7949729d71af836b2308ee299c0898b SHA-1: e252bf1ce76bab9ef4a94312a3108950a05dd04e SHA-256: 04caff2d759967a13bfd7f81eddc32c6fed6acd3cfa94faf105e5593a944328d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects to a malicious domain (ttraff.com) via a pify redirector. This suggests a phishing or scam attempt using a link farm to obscure the malicious destination. The ML classifier strongly supports maliciousness.

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.com/pify?keyword=happy+birthday+sheetal+audio+song In PDF document text
    • http://jomos.joyfuljourneystravel.com/uploads/1/3/1/4/131410227/fubazovetejego.pdfIn PDF document text
    • http://musov.lawlisprinting.com/uploads/1/3/2/6/132681763/xebijivir.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/1/0434/5207/2088/files/atomic_radius_and_ionization_energy_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4230/3140/files/bipartite_graph_in_graph_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8507/9452/files/free_assured_shorthold_tenancy_agreement_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1556/1638/files/31960000505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7557/5709/files/beauty_and_the_beast_musical_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2577/6288/files/javascript_send_keypress.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/18608729334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6929/3215/files/63340183276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0364/2007/files/automate_the_boring_stuff.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2732/3301/files/36462611846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bumagigefabap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/juwurigabux.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 2

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_off0000801d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801D 5424 bytes
SHA-256: f6bf85ea45b6cd5871e68838001d012489701aedce90c905644f98bea0480469
font_01_sfnt_off00009281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9281 14684 bytes
SHA-256: 79d83b43f2b2274d468da260f548119e19439d67de1d17c2aa071c174b6c5545

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