Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd70043bfe2d0dfa…

MALICIOUS

PDF

44.9 KB Created: 2020-11-06 21:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 6fcdb0797c6c985c5be3e4dab9a2233f SHA-1: ed15b32fa8f68095b1fe365acad56c948b3cc7ea SHA-256: cd70043bfe2d0dfae5ceb5fb9089d094e613b7f4bf58c2371c93b7090ba11476
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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=purdue%20owl%20apa%20abstract%20example In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460982/normal_5fa33ff506246.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384639/normal_5f95eb9e25a3a.pdfIn PDF document text
    • https://gawubodukajine.weebly.com/uploads/1/3/0/9/130969599/wotuf.pdfIn PDF document text
    • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/merinorasaniv_nidikurawi_ketexirup.pdfIn PDF document text
    • https://rugazodexozapef.weebly.com/uploads/1/3/4/4/134480570/pemuzujovozilop_likifuvolaka_xigasokosuguma_dulas.pdfIn PDF document text
    • https://romovemesokawaj.weebly.com/uploads/1/3/4/4/134479736/9893084.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f986bafb7d72.pdfIn PDF document text
    • https://gidujinogojavu.weebly.com/uploads/1/3/4/0/134096303/1625331.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/mesixadelomomo/referat_meningoencephalitis.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/89077669029.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/tratamiento_para_conjuntivitis_bacteriana.pdfIn PDF document text
    • https://sovezetazej.files.wordpress.com/2020/11/80719215766.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_off00006384.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6384 5248 bytes
SHA-256: 0edfb47c4dcb94814e4dbac78051d47dc10679c3b2632027f285c480b1d54f12
font_01_sfnt_off00007570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7570 10688 bytes
SHA-256: 7bffe9d68594eb8c1dfa06b9e70c0d7e03f4c7ab876452efa6308dd0720034b0
font_02_sfnt_off00009900.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9900 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c