Malicious PDF — malware analysis report

Static analysis result for SHA-256 78252de7e2861523…

MALICIOUS

PDF

44.2 KB Created: 2020-10-30 19:49:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 7fc0aab30a849a595d28075c6b7ccaa1 SHA-1: 5a490b99f7224ba5d0682a6c4d8fa968aca9d8ec SHA-256: 78252de7e286152372968252e257b28aab556d70ffd54503d5dcaf9af51c29fa
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=calentamiento%20global%20pdf%20resumen In PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/wokiva_pisukugozimu_xapobebinub.pdfIn PDF document text
    • https://xirunokud.weebly.com/uploads/1/3/4/4/134467368/2455228.pdfIn PDF document text
    • https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/wozapik_gefisofikuku_tepudesezutus_gutodos.pdfIn PDF document text
    • https://nulumekut.weebly.com/uploads/1/3/4/3/134373747/1e6a9c3.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/mikukinib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368742/normal_5f88684102fa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368497/normal_5f8e438bd09e0.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/gotijejaj/21751506345.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/48666449807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bcf52f0-015e-4655-a5e0-850a2d8ca4cb/giporofanowopujifene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4728/1062/files/kamipedep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/6411/3305/files/fallout_shelter_hack_apk_cheat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aeb09310-75c7-4a49-9d61-393f61b261f6/27937447871.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/razones_trigonometricas_de_angulos_en_posicion_normal_ejercicios_resueltos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/1994/3067/files/21174165073.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_off00006ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC0 5404 bytes
SHA-256: a18869b7691fe4195c57692bb0750e5c3794debecc2812d638a22193081701f3
font_01_sfnt_off00007d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D01 11508 bytes
SHA-256: 6756bb791709a706a5fe680f6c5e71c5ac0a637081db57778c9c8c99147210bf

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