Malicious PDF — malware analysis report

Static analysis result for SHA-256 445962bac3d6eccc…

MALICIOUS

PDF

47.9 KB Created: 2020-10-27 04:53:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-11
MD5: 605021f07b35aec522a0904f1344a643 SHA-1: 2771b0b498eca85556bfbc9f6585b95239643ec4 SHA-256: 445962bac3d6eccce306f2dcfe298ef2dc93f433069ec911e4e9c19ed5a550cd
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/strik?keyword=cricket+vs+grasshopper+protein In PDF document text
    • https://gifezimudafero.weebly.com/uploads/1/3/4/3/134312010/446bfee948cba71.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/7440f7.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/5176519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f87b0deee945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384468/normal_5f9261b87c7ed.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/1/0496/7297/8585/files/bumefoniwajasirofev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0650/3323/files/xijitedisexigameku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1348/9318/files/the_complete_vegetarian_cookbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1406/1721/files/68833938930.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/plot_and_cdf_in_r.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/rodela.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/fagadabaz.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/hindu_baby_girl_names_starting_with_a.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/7475654136.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/fumirebi.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/aciduria_orotica_hereditaria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aee070b4-4ef8-4e40-855c-eb48d77c9f7b/4104092316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a05f4bc3-45b4-45ba-9634-8851757a374b/gezojar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0c5ac23-1e8b-46cb-b436-d46a2bcd92e9/ravuzitapodewagar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11d4c1bf-54ee-4926-88dd-9245858cc950/95601578835.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54843f3a-0619-45af-83fb-983ae817ce17/78747437123.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_off00007ca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA9 5192 bytes
SHA-256: 1ee281eb28913b6685d96d08722df022027f81dbf0844968385b14ad59616581
font_01_sfnt_off00008e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E54 10976 bytes
SHA-256: 4c7b27e66dfb6996ce4cc57fd027745efaddece86bffc1622fb93f4cf534792e

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