Malicious PDF — malware analysis report

Static analysis result for SHA-256 445bcba6304344af…

MALICIOUS

PDF

76.1 KB Created: 2021-01-01 20:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-11
MD5: f4f8e8ae7b647e7e238c6e57d6192f72 SHA-1: 47bbc67c74f252b8ed40a231646c360f2080749d SHA-256: 445bcba6304344af4f77ca4a314cdab8a38d94f2fe8e600613d0547ffb0a7a92
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/wb?keyword=lucky%20supermarkets%20florida PDF link annotation
    • https://cdn.sqhk.co/kaxovugefulo/ghuheid/59385168030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378830/normal_5f97e9b2d10d5.pdfIn PDF document text
    • https://gexirirexov.weebly.com/uploads/1/3/0/8/130874239/gotagulojivaga-pebetidubo-gonurojirupuru-gumesegekubixis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450434/normal_5fcf83d2011d5.pdfIn PDF document text
    • https://cdn.sqhk.co/fujalapevame/hdz9gfa/kofiwogijuvujoku.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wokesabisevo/assassination_nation_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/boilsoft_video_splitter_crack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/jspdf_autotable_remove_header.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/befivuzonabifexiruwituko.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/free_embroidery_designs_brother_se400.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/mugavas.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/vastu_shastra_book.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/nimevuxep.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/66002489303.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE95 5184 bytes
SHA-256: 054229cf60376f8c4d23b306501f5c5f61e02fadf22d1369542e2932504fe6f7
font_01_sfnt_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 10732 bytes
SHA-256: 695fbd530ed0a8232f43c0f1453b0be5e4b75b7aba7df51d54b9df2a36e18fda
font_02_sfnt_off00011512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11512 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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