Malicious PDF — malware analysis report

Static analysis result for SHA-256 72be09f6bc45098a…

MALICIOUS

PDF

33.9 KB Created: 2020-11-09 16:31:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 3a50ebf6672d94994a05034e49c85aa8 SHA-1: ef555f8fead46c4cb066d6313280a40a0badb5d4 SHA-256: 72be09f6bc45098a5d81b273c56a54124bbf2b0b935f15b8c933e634d3d1026f
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://gettraff.ru/123?keyword=gangster+mario+pics In PDF document text
    • https://cdn-cms.f-static.net/uploads/4443821/normal_5f9e22c42f548.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367308/normal_5f8d2205cfb8b.pdfIn PDF document text
    • https://fuloremazugad.weebly.com/uploads/1/3/4/3/134356453/8827606.pdfIn PDF document text
    • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/925792f6bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378623/normal_5f90d2a08cd18.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/zimetiw-xipaveruxo-gogivimu-dewud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407983/normal_5fa1026a5e11d.pdfIn PDF document text
    • https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/nevate.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/pisedij/35641647674.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/pifanudaripuzexujat.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/77102483152.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/fleeing_the_complex_wiki.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/pubonifuzob.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/mefulawujezemuxiwewetutan.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/knowing_god_packer_free_download.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_off00004659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4659 5252 bytes
SHA-256: 24a3cc3af6d682e0e2668c03b4987cfe6ce2420909c0ea80f3d7225af63c6e5f
font_01_sfnt_off00005827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5827 10228 bytes
SHA-256: bb0586971f2abed6500299b0265f1827e65bc8dd7228b0c9ce994a353aefa4c3