Malicious PDF — malware analysis report

Static analysis result for SHA-256 78296454eaf2f84c…

MALICIOUS

PDF

44.1 KB Created: 2020-11-07 08:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 8ce35ce4c242fa68b1ca6f0c4ba296a7 SHA-1: 698b603e7dc8342a132b120addbd83b1365ab6fe SHA-256: 78296454eaf2f84cc85bc13aa3952b1533ce963cf6e3b18eadbb0f599472338a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://trafficel.ru/123?keyword=nevadafit+acceptance+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368972/normal_5f95a50433587.pdfIn PDF document text
    • https://fukubumo.weebly.com/uploads/1/3/4/0/134016705/vadidexelonixitoxupi.pdfIn PDF document text
    • https://kisigitoteke.weebly.com/uploads/1/3/3/9/133997396/bomomujepeko.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/334cd7e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/turip/70863609915.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/61613875926.pdfIn PDF document text
    • https://xozolow.files.wordpress.com/2020/11/18995348576.pdfIn PDF document text
    • https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
    • https://s3.amazonaws.com/madegusulepugif/apricot_seeds_poisonous.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/xosasudalezerun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/155f2df8-4797-41e0-9779-b63c3c3f0146/59814036383.pdfIn PDF document text
    • https://ripigewub.files.wordpress.com/2020/11/32762827138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b091345-09ea-494e-8279-141326aa17b1/how_to_play_othello_youtube.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_off00006d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6E 5044 bytes
SHA-256: 9ab5c7a06cc26f437a38dc83a6d00460842a7d689867604e68e32a6d133d234c
font_01_sfnt_off00007ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC6 10980 bytes
SHA-256: e2cd5bcec1cd8618dc1bb554e5b9be72cfe1b40e526bb0dc0a254ae70657c00a