Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f5bed4de05ce437…

MALICIOUS

PDF

47.5 KB Created: 2020-08-19 23:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c2b780dcc4bfdd9853a49640e0e0dab8 SHA-1: c1491885f90eca07c0447cc49e55a450716c7861 SHA-256: 0f5bed4de05ce4373e52914c57211d3410d93b070f60aaf4ad795bdb9e013765
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, and a critical link to a known malicious redirector. This suggests a link farm or SEO manipulation tactic to distribute malicious content or phish users. The ML classifier strongly indicated maliciousness, and the embedded URLs are the primary indicators of compromise.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=agneepath+song++bestwap In PDF document text
    • http://nobuluz.bullsbard.com/uploads/1/3/1/4/131408854/705035a4a17e1c.pdfIn PDF document text
    • http://bokamovur.foodyounebes.com/uploads/1/3/1/4/131437254/xoroxe_ditewiv_kozuxigal.pdfIn PDF document text
    • http://files.stgabrielepiscopalphila.org/uploads/1/3/1/4/131406288/41a458f911679ab.pdfIn PDF document text
    • http://files.ericeckhouse.com/uploads/1/3/0/9/130968996/0a632bcf834.pdfIn PDF document text
    • http://files.sagewindowcleaning.com/uploads/1/3/1/0/131070911/pebumup.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/1/0454/7385/7686/files/accident_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2190/1729/files/budegurawovajub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1503/5290/files/modern_chess_openings_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/77363931764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/jockey_full_of_bourbon_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3287/0037/files/cardiotonicos_y_antiarritmicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/98575024417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2655/files/71209825989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6634/9975/files/cateye_padrone_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/adjetivos_calificativos_en_francs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/85190339086.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/25167695575.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1B 5172 bytes
SHA-256: ed36ecfa37b62c3f4257f0929950a5b5d24964ae57ba09a402660ab501df8194
font_01_sfnt_off00006cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 15060 bytes
SHA-256: 5f731ee6ae0bf7f71310edde508c8bfdacd025a20c72c262a9966e921ec33b26
font_02_sfnt_off00009bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEC 16096 bytes
SHA-256: 3bb08857b08983a257d5a2052628e18542fd51c8d29f5bbef87ea8b8ace00841

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