Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3967ea86f1a7f7…

MALICIOUS

PDF

43.4 KB Created: 2020-11-01 04:57:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 07ec4bf6e30ad260f96be755c739786f SHA-1: c588611705bf852f1ef1d1e58fe81215dfc1900e SHA-256: 4e3967ea86f1a7f7478cd1b05c95023dbcbe8c98732d58f7690b472c6554776d
194 Risk Score

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://ggtraff.ru/wb?keyword=hans%20rosling%20don In PDF document text
    • https://cdn-cms.f-static.net/uploads/4392652/normal_5f95d89162e26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366336/normal_5f872f1848e1a.pdfIn PDF document text
    • https://zemexiwum.weebly.com/uploads/1/3/4/3/134330210/sawofupepodibi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369187/normal_5f8a5a865a0c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_5f879b3d4e6bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368760/normal_5f99e031d3d19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_5f89de4bdce5c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_5f920c0fc8dc6.pdfIn PDF document text
    • https://vebeviwikime.weebly.com/uploads/1/3/4/3/134317270/piramij-levomamirowusab.pdfIn PDF document text
    • https://ggtraff.ru/wb?keyword=hans%20rosling%20don't%20panic%20the%20truth%20about%20population%20worksheetIn 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/1/0502/0427/8935/files/bose_wave_radio_cd_model_awrc-1p_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0681/0050/files/chuyn_t_file_sang_hnh_nh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63e09427-93b7-4616-819b-aaa0bceb49a7/como_instalar_autocad_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6656/2966/files/bendy_and_the_ink_machine_apkhere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/fixixokumutezosuviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6672/6837/files/sustainable_development_goals_explained.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1668692f-e312-43dd-a19d-96dc5a0c6584/97219112046.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6355 5624 bytes
SHA-256: 2be25ebac2b507b0c4b833b76fcac233963137af52deace150a67cd5a6c49598
font_01_sfnt_off00007680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7680 12196 bytes
SHA-256: abc5d6fe6249f3cf2d396238f32f3d543b17db3eec8d1dd9d88a3791951663ee