Malicious PDF — malware analysis report

Static analysis result for SHA-256 425188bfa3357447…

MALICIOUS

PDF

38.4 KB Created: 2020-10-03 10:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 595c0bcf5ab7783596ebc42f8ce8aab9 SHA-1: 5ba7e083a1a0c4c06824aee9784393abe8b4d128 SHA-256: 425188bfa33574479bbe74d7a19b13b8ad7d35e586295c5c8fa5461d635102ed
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://cctraff.ru/strik?keyword=heart+of+nightfang+spire+review In PDF document text
    • http://files.reggieschivejazzcamp.com/uploads/1/3/1/4/131438541/wijobit.pdfIn PDF document text
    • http://gorilame.olearytalks.com/uploads/1/3/1/3/131380755/wajumeguti-wabemapimavew-belirugajotu-kifuwego.pdfIn PDF document text
    • http://files.busystatic.com/uploads/1/3/1/4/131406507/nidekole-rixanova.pdfIn PDF document text
    • https://site-1037172.mozfiles.com/files/1037172/limafiwej.pdfIn PDF document text
    • https://site-1037094.mozfiles.com/files/1037094/25414632516.pdfIn PDF document text
    • https://site-1037865.mozfiles.com/files/1037865/16701274346.pdfIn PDF document text
    • https://site-1038777.mozfiles.com/files/1038777/mukovabadeta.pdfIn PDF document text
    • http://piwasakem.sharibatheactor.com/uploads/1/3/2/6/132695550/a2ae8407f90e195.pdfIn PDF document text
    • http://lolowa.therapythatdoesntsuck.org/uploads/1/3/0/7/130739206/6e789a.pdfIn PDF document text
    • http://files.kbsail.org/uploads/1/3/0/7/130739291/novon.pdfIn PDF document text
    • http://tusow.artpetch.com/uploads/1/3/1/8/131856456/pipozefuned.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/b3ef2668-2d92-4314-be0c-badd27d1584f/26711070914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35439b31-0b12-4bb1-a134-1954fda4006d/35692624810.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e6dcbb3-824a-4009-9f4b-0d117f5f275b/zajikuxexajezokisobija.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17c1721c-79d0-4de6-80ac-fa4f6841c3d6/92229000546.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce50bc3b-26bc-45ab-aef3-dd6b3f31f718/suvoxubewivuxadegejej.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_off000057db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57DB 5244 bytes
SHA-256: 9df808e14232af9685bddac68dd0b1457172741728defd1350d91425a798b217
font_01_sfnt_off000069c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69C6 10316 bytes
SHA-256: 5f9ee030df51b112cfff0879d8a29298579c7509a4e5956323b3c5388a2f4922

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