Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a16e17ff5202363…

MALICIOUS

PDF

72.7 KB Created: 2021-01-29 13:28:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-31
MD5: e8532419f6e49619338f0f8ba74edfb6 SHA-1: d0ab5de8cd430af65f364fa4a42d021f3eaa15a2 SHA-256: 5a16e17ff5202363de982f4cb9f7c85578b56b1d70fde11377bf458e713ad3ba
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wb?keyword=skull%20live%20wallpapers%20for%20iphone%2011%20pro%20max PDF link annotation
    • http://8bitbeardsco.com/fekonexekivevebrnw9e.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/dexeze.pdfIn PDF document text
    • https://vutavevivusupe.weebly.com/uploads/1/3/0/7/130776898/bijotem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416664/normal_5fc762c1e4bf5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424951/normal_5fef9885b54c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409610/normal_6004e434a1b1f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449616/normal_5ff89dbe779aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410216/normal_60044d7db7fd9.pdfIn PDF document text
    • http://yachts-4-sale.com/klaster_kambal_katinig_worksheetktmuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369629/normal_5fe7c28626ed7.pdfIn PDF document text
    • https://tekudijasefemo.weebly.com/uploads/1/3/2/7/132740256/biwigiwevujusojulo.pdfIn PDF document text
    • http://smeshnoykir.space/tufepufeduxem3qrtk.pdfIn PDF document text
    • https://kadezejuvi.weebly.com/uploads/1/3/4/6/134603763/miseweposabisi_zefelegalusuz_tadawese_selapililokisu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457332/normal_60021c8dd778f.pdfIn PDF document text
    • https://votujejigep.weebly.com/uploads/1/3/1/3/131380583/bufixonipu-zaxekujan-kamowuvi-dulenutukol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486965/normal_601029dba2130.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD175 3136 bytes
SHA-256: a9879f94c3de0370bbf099cba19345659fa3e7eff91fdea10569de354856d757
font_01_sfnt_off0000dcab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAB 5580 bytes
SHA-256: 83d3f19f918388765f11c08855d54e685bb595f63a91600f8a1a0eb040661283
font_02_sfnt_off0000ef96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF96 11116 bytes
SHA-256: ecd46fc76c0012b19d7eacf67318917d2bba33ae2d83c5e1ef8a2a9842d59272

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