Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a32931a645567e…

MALICIOUS

PDF

43.3 KB Created: 2020-10-02 02:22:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-10
MD5: dc1933590a92947b2e2737da34079068 SHA-1: 681e1a82555180cdfd03f254187548e681f391ae SHA-256: 18a32931a645567e0018f0b2ebf1742991f9f826ff3eb41b792a1f24a9051f54
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://ggtraff.ru/strik?keyword=ldr+sensor+module+datasheet+pdf In PDF document text
    • https://site-1036731.mozfiles.com/files/1036731/26510872819.pdfIn PDF document text
    • https://site-1037000.mozfiles.com/files/1037000/5829962163.pdfIn PDF document text
    • https://site-1036748.mozfiles.com/files/1036748/2775570742.pdfIn PDF document text
    • https://site-1038733.mozfiles.com/files/1038733/dubafitinuko.pdfIn PDF document text
    • https://site-1036852.mozfiles.com/files/1036852/32801862471.pdfIn PDF document text
    • http://files.rununashamed.com/uploads/1/3/1/3/131381363/bemanawozimoxadanap.pdfIn PDF document text
    • http://files.shfestivalchoir.org/uploads/1/3/1/3/131398308/wikeremejo.pdfIn PDF document text
    • http://files.edmundzygowski.com/uploads/1/3/2/7/132740307/6896814.pdfIn PDF document text
    • http://files.ericaldama.com/uploads/1/3/2/6/132683218/189c96.pdfIn PDF document text
    • http://fepuni.smc-gpaa.com/uploads/1/3/1/1/131164269/gesuranubaj_demix_dajelevofutig.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064df.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064df.bin)
    • https://uploads.strikinglycdn.com/files/85a98e1b-2f71-4c8d-a6f3-11aba2e8e2d6/46488096285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29f40a77-86bf-4741-b813-cad86742dfc0/69443898923.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76c9f8db-71f6-4c06-bfe6-7f9cac80e4d2/72138169980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89a8c203-8953-40c6-85bf-aeabcdbc3763/47773461885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f1c1f1f-308c-4e57-b540-b5f52b550776/direjedifogof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e00e741b-3965-4595-b14f-75b302f9b56c/wefojepufawozuguk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/910a5d36-edf7-4db2-97f1-c24f78e8354a/rezovokakogijirir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0ff096a-a343-493c-a16c-6ada4f723753/62635781241.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 extracted file (font_00_sfnt_off000064df.bin)

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DF 5220 bytes
SHA-256: af5486b566a91530b0849a261b5bc4d99f50931b039315f90282ba43606b8221
font_01_sfnt_off00007675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7675 13244 bytes
SHA-256: 039f7941b670c35c6c337f1a84a7c98b615088582eb404f2fc0f3c23d6a6b561

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