Malicious PDF — malware analysis report

Static analysis result for SHA-256 6249b4d389d0fb5a…

MALICIOUS

PDF

45.8 KB Created: 2020-10-18 18:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: 1502212fe390f1c841b1392811766705 SHA-1: 3497576bd7cfdf24902b6f2d3472e200518fa378 SHA-256: 6249b4d389d0fb5a668f04988c10eb878c72915c25afedcf138c4e8d9a051f70
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=ejercicios+condicionales+ingles+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5f88b50e7d5d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376127/normal_5f8b0c24cc876.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f87145311c80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368970/normal_5f8a6aa0f1fef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f88ac81ea82f.pdfIn PDF document text
    • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/zital.pdfIn PDF document text
    • https://texitanoz.weebly.com/uploads/1/3/0/7/130739996/sutonolob-taniwov.pdfIn PDF document text
    • https://balejumefem.weebly.com/uploads/1/3/0/8/130814467/7104943.pdfIn PDF document text
    • https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/27166a4e21e117.pdfIn PDF document text
    • https://zisokilusativ.weebly.com/uploads/1/3/2/3/132303079/zajededexe_bevakosuzuw_jozidi_rovazo.pdfIn PDF document text
    • https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/kesabipikevixeg.pdfIn PDF document text
    • https://gidixelasulam.weebly.com/uploads/1/3/0/7/130739099/0d5d637.pdfIn PDF document text
    • https://mojenosude.weebly.com/uploads/1/3/1/3/131382274/e77048f31d9a457.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/1/0501/8304/5293/files/botumivinujipaluleku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1510/9312/files/lineas_para_escribir_nios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/591dbcc7-4c33-4870-a398-2a62429844c6/pebikisifakubapadizu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/932e8f7b-7a98-4208-b1e2-03b41583e0a4/delunejeseful.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fea039dc-8602-43cf-a768-62ebc6ed58a7/97115225220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0e92e8d-9059-42d3-8c9c-6a6c7fe4feb3/tuluxekikevexe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/648ff95d-6ada-45b2-a794-d7713e43338b/49707661538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6723/files/letafotevaduzubusobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7806/2758/files/combat_ant_gel_near_me.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_off000070fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FB 5356 bytes
SHA-256: 6dc720c4d68739b7a219c76bd46e80e287601e156b6ed349c45feaee112d1769
font_01_sfnt_off00008346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8346 11224 bytes
SHA-256: 54e2fb8b9109f2fd20dc3f12af384f32db9512683edb77edf447deb425508fc8