Malicious PDF — malware analysis report

Static analysis result for SHA-256 9413b57e49f4a5e6…

MALICIOUS

PDF

41.4 KB Created: 2020-10-21 17:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 2d09f21591087461fa51e1829abe50ff SHA-1: c9ec2a90a39ab6ff157f5c4e377dc5405a2c690a SHA-256: 9413b57e49f4a5e648b2e9eb46d028aba71671242693f126db749d5b6f87cb25
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://ttraff.cc/123?keyword=convertir+plusieur+image+en+pdf+en+ligne In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f87652e3c75c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f8baaf150004.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_5f86f8b1755c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370560/normal_5f88b13b52bf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f8c10d5c6543.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5f8e1b536881d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f88dc43bd0ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365659/normal_5f874d96938a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f87553a3b263.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/b6eaed539046bc5.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/0a4d320e6.pdfIn PDF document text
    • https://samomalekadoj.weebly.com/uploads/1/3/1/4/131438786/sisuzi_pavemiwugugawux_degugeloso.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/7774024.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0650/8186/files/linujitotobidirikomap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/2045/7412/files/android_studio_dialogfragment_show.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9954/1670/files/36590788709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/63080208462.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/xijanojumokuwaxatopuliko.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/pdf_market_leader_business_english_course_book.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/luwulu.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/schopenhauer_pessimism.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/39014748854.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/295b37fa-3664-4cbf-9db8-20cfcfcdd2f3/ludopu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d71740-3e01-4829-95da-19cc78c0c8b2/josevijefuxelunubawit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddb46c95-5ffa-43c2-bb8f-3490009f4e0e/74253666118.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db91de3e-faf2-4d90-9e5e-7dc416f18e82/64011801954.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_off00005f19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F19 5324 bytes
SHA-256: 34d9127df1445e068ec4a86a0c8c338f02a3ad9ac8ab75e27c3f11dd528f63da
font_01_sfnt_off0000711f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711F 11256 bytes
SHA-256: 4404fc0ef2de401b62633f40fcb3bd2b04cc5f748ac07cd25d34ad0731f42e4b