Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bdeaac85fd51ab…

MALICIOUS

PDF

44.2 KB Created: 2020-10-17 08:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: ef3760cce1208d5828b2811008d1fba9 SHA-1: 98a1d745843358697a545b0794ddb683cbe5e9a9 SHA-256: 72bdeaac85fd51ab547407268758cae36c54d0ea30128e379cb01d8b60a66dc6
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/wb?keyword=how%20to%20break%20a%20link%20in%20excel In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/divili_dapixi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kinufijozulof.pdfIn PDF document text
    • https://mutazodot.weebly.com/uploads/1/3/0/8/130874237/8308117.pdfIn PDF document text
    • https://goduvozimaku.weebly.com/uploads/1/3/1/3/131380582/9c560a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/605e969e-6835-476a-9eff-298971d12653/gekopidob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05290d3e-f597-4e81-a24f-d45f88a708da/86601993282.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d27e88a4-5af4-4c0b-8d0c-44b3393f20d6/98268324910.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18a5dea5-c16f-4051-80fa-547662e28127/18460357315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/cyclomaniacs_2_unblocked_76.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0079/1715/files/stc_1000_manual_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/sda_hymnal_guitar_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0573/8660/files/xozejinekelazijofuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8309/3910/files/dezefasezinidekibapawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1042/3456/files/nujagosopazinoredimize.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05397e35-154f-4de6-9ddd-f310e11c8ade/lagujumagomituwomitod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c80dfb4-6dbb-4045-afb5-20763823ce4a/gilowenipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43e3e0c4-ecac-44cf-ae33-ae537515ab21/gibopi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d345152-eec9-4a2f-9b7a-fb4dc2addbb2/zodixegefajimizuvigaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/246f08a6-dac2-4a1c-9863-4e785cf6efe1/guzipisolaxuzivova.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b960cd2d-0d10-4dfd-b7f6-514ae48c9f29/85707547861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8d4b297-0c22-44bb-b1a3-b2a9acc5aeb6/mugop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78c1d00e-1ff5-4540-a108-4672aba77921/42976961697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed966db8-bed3-47c7-ace6-61ec7586881c/rozekolizemikij.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_off00006d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3E 4940 bytes
SHA-256: 4e5cb0fefd90dc9fdbe91027f5900924eaace46f5f0e101e9d141378fdd1bb5c
font_01_sfnt_off00007e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2D 10760 bytes
SHA-256: 189b3a513b562d4a0e74d812e173736d1d13a4d44836e23eb732dfe70e67739a