Malicious PDF — malware analysis report

Static analysis result for SHA-256 90656625741318f0…

MALICIOUS

PDF

33.2 KB Created: 2020-08-23 06:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66fcc6ef2a693e3834f2bde6a0467856 SHA-1: 6a6c91cb8af4295e9c295a52dbb1bf2705f737e6 SHA-256: 90656625741318f0808bade7f97f7ddeae151cb91f2341db4afb53a9770817a7
194 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to lure users to malicious redirectors, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.com/pify?keyword=youth+competition+cheer+uniforms. The document body, though heavily obfuscated, contains references to this URL and numerous other PDF links hosted on cdn.shopify.com, suggesting a link-farming SEO strategy to distribute malicious content. No scripts were extracted, and the attack relies solely on user interaction with the embedded malicious 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.com/pify?keyword=youth+competition+cheer+uniforms In PDF document text
    • http://dapawon.mrsleonard2ndgrade.com/uploads/1/3/1/4/131407668/c0933f.pdfIn PDF document text
    • http://files.hertssarc.org/uploads/1/3/0/9/130969470/sinegisiwexivonunof.pdfIn PDF document text
    • http://rifedagor.bacmedicaltourism.com/uploads/1/3/2/7/132740541/1156891.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/1/0448/3055/6320/files/xoruron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7017/6932/files/doom_2_weapon_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2459/files/wulame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2344/5666/files/55102907811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8904/4383/files/60255925311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1324/8923/files/77237454183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/lapofuruwigaweriwufaxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5262/2236/files/91216125775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/24095900021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/8173/6868/files/walmart_queen_platform_bed_frame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6345/7432/files/89096310289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8741/9805/files/vutanazavoteguwazelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2556/3799/files/kawosakilirugulesalagas.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 1

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_off0000470f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x470F 4972 bytes
SHA-256: 4a120681cfa3240af64670b068d52299942f079341a9a5762eb0286932bacece
font_01_sfnt_off000057dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57DC 9360 bytes
SHA-256: 057f7b7481a1a1e95d3231ca5c48a070a8114dfd55dde5864cfddf083fd358e6

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