Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7426fc8a402758…

MALICIOUS

PDF

47.2 KB Created: 2020-08-13 01:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 441645dd37f40d3876e3bd4664286395 SHA-1: 09d668d8fb6300b948a33dc163bdac9bc21ca8de SHA-256: 9d7426fc8a402758b17ed35709e21fc49834daf4edae8b9e64afb800ec544e2c
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=software+quality+assurance+pdf', suggesting a lure to download further content. The presence of numerous links to Shopify-hosted PDFs indicates an attempt to disguise malicious activity within a seemingly legitimate context.

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=software+quality+assurance+pdf In PDF document text
    • http://files.historiapopuli.com/uploads/1/3/2/3/132302910/roresi_sanijawi.pdfIn PDF document text
    • http://xoxenerip.sumikoshimada.com/uploads/1/3/1/0/131070841/jatumijewomakum.pdfIn PDF document text
    • http://notikof.acceleratenewenglandwomen.com/uploads/1/3/1/3/131384618/zedateji_xonakabaw_pukupagor_kabozeke.pdfIn PDF document text
    • http://files.lighthousechurchandchapel.com/uploads/1/3/1/4/131453541/nugasebesogegexijad.pdfIn PDF document text
    • http://files.lincolnmarchingcougars.com/uploads/1/3/1/6/131606745/feresitas.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/1/0429/5573/5193/files/51838103458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/70985982160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2157/2008/files/i_love_split.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4143/9400/files/64729615633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/rufuboduril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/entrepreneurial_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/39386782841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0110/1984/files/new_york_sightseeing_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7868/3541/files/xamadosokemufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/6379923405.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/livro_anlise_sinttica_visual.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 6

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_off00007071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7071 5572 bytes
SHA-256: 863f4cf39c020bc306c45c469537c83c1bc019c259531fb9fb478c02a7f703ac
font_01_sfnt_off0000838a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838A 14192 bytes
SHA-256: 43ecf67e6e4ec15a2959b2434b71192da071d1c1d03f99a529245c468b2608ad

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