Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c567b273ef7c1…

MALICIOUS

PDF

79.0 KB Created: 2020-10-22 21:22:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: d9c18fc76fd84e87a219a935fffc0073 SHA-1: fd37293159e417bfc92f19db46a0a1c1e6d3cfa2 SHA-256: 478c567b273ef7c1089bf04a961d7ebb7d76b1af4a4621790ab6b89ae1f1f9b1
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=mtap%20reviewer%20for%20grade%201%20free%20download%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375356/normal_5f9138faba139.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f89a6354224b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387046/normal_5f8dc56edcb0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370076/normal_5f8ea95ce1e96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366388/normal_5f8822f85a3e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_5f8b75ad663c4.pdfIn PDF document text
    • https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/b26496e1bc.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/c2099e721b.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dekegu.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/zunel.pdfIn PDF document text
    • https://misopiwulasi.weebly.com/uploads/1/3/1/8/131856666/felokidibafufir.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/2b34abe251.pdfIn PDF document text
    • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/fizovamezoguvijofuk.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/83ee0871-e5e8-41c3-b091-5edf435a9c20/tononavedomozizogakulikex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cff90d2a-27c5-41b2-9e2d-ef4689b612ff/10313454433.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f745a9e7-ad11-4f63-915b-7132159a23e6/kadiwasavumupomuvelube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abf85fbf-74c1-4d62-af00-c124f54470ee/fubodajapapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac43c095-f7b6-4f67-baba-7c21e7895563/watowafusujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c393308c-bb41-4cc3-8cba-6f11cd62de9f/18-5_teenage_three-way_fuckfest_w_40.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/498c3907-acab-4958-aa92-73ab7352db9e/erp_notes_for_mca_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34c2faae-cc1f-4166-90a4-44060179cf1e/piwitogupofelegidobivenal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA0F 1880 bytes
SHA-256: 05bdc63b3f9a63bc0616cd520604d082bfc94f4437ed00c60dfbfa329b843541
font_01_sfnt_off0000f2f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F9 5240 bytes
SHA-256: 2eff45a677c1cd4c230a991df9a16126f3cbf79c8fac6293581c99b39332e641
font_02_sfnt_off000104fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104FE 12196 bytes
SHA-256: 59c1a535ee4cdd967fc5c434f8744b8bfa0c3a181de5d2b39c06598a76ff8f34