Malicious PDF — malware analysis report

Static analysis result for SHA-256 7939294d246bb716…

MALICIOUS

PDF

49.4 KB Created: 2020-10-25 11:14:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 9a330c7f405baeb8ce0636e3af63d94a SHA-1: a7aad28a5fb3f6eac113261480bbad751038f2ac SHA-256: 7939294d246bb7166a4996f1c30d6f15742bfc60df8b109bfbd39298b636f152
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/wb?keyword=metabolismo%20de%20los%20lipidos%20pdf In PDF document text
    • https://rokumetusemep.weebly.com/uploads/1/3/4/3/134382705/bf595550e.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/6497588.pdfIn PDF document text
    • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/8170474.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/kaduparaje.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/5305658.pdfIn PDF document text
    • https://jikesekija.weebly.com/uploads/1/3/4/3/134367489/726ac7f3695e.pdfIn PDF document text
    • https://rusakubasarozu.weebly.com/uploads/1/3/4/2/134266120/japenumun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zirojopemup/pevir.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/bofinoveregukago.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/karenolosegaduzaje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d057b991-a477-46bf-a04c-bc48354c00f1/lepogadak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5a0550e-d892-409b-bba4-f4eb854217d3/63341783437.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9963cc65-892e-4d3d-a68e-0dc02ac7786b/vragen_van_George_washington.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76577588-8175-4762-ac8e-b9532642203e/vetifurineguwix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56cd56d3-f667-47a8-b790-fe6a134dcd6a/59165849839.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/85751596709.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/fofaviwudademenupuwiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55821776-0d90-4290-bf58-f7acf69a668a/usmle_genetics_questions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da9b13b4-cd7a-4aa3-861b-23a4e3296f15/sudopimawakeba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a336bfe-7bbc-43e3-8c5e-7ddb43db8ece/mirekoguvoraloz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d2ff6fe-68ef-43a9-be27-532bed650bb8/89655160024.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0116d675-7efd-4dec-a159-26d1aa505b31/57731552598.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_off000072f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F4 4916 bytes
SHA-256: 0f29568024dbd08e5ff957b8ed9e82a39b00b962206b6c504bf3349a3120f04a
font_01_sfnt_off000083b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B5 11304 bytes
SHA-256: dc4cc0f89d0d1f2e98a635dbfe7912242fffeab6752876179823173264c10978
font_02_sfnt_off0000a875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA875 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3