Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d63f1a88e14de9…

MALICIOUS

PDF

81.2 KB Created: 2021-03-15 21:38:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b11c7df097e086f46d5ec719fec0baa SHA-1: 9666285ead2584776c60812e891e92e9be11acbf SHA-256: d0d63f1a88e14de972bfce03950f3ecc9fac405cf14c3797240409f158b57354
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jacksth.ru/wix?keyword=daily+guide+newspaper+waynesville+mo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4477637/normal_5fe796a345952.pdfIn PDF document text
    • http://legiontry.online/todos_los_verbos_irregulares_en_ingles_y_espaol432qq.pdfIn PDF document text
    • http://insurancesouk.com/xoluvofesawigeks0du.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383577/normal_5fe82545a1cba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370078/normal_5ff064b5c7142.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380863/normal_6005bb007c1e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415073/normal_5fe0bd037c1da.pdfIn PDF document text
    • http://ontrade.top/how_to_apply_stickers_to_a_curved_surface2rvvr.pdfIn PDF document text
    • http://micrometerdigital.xyz/engineering_mechanics_dynamics_9th_edition_wileysli72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479917/normal_6008635212f28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401697/normal_601540fde604e.pdfIn PDF document text
    • http://tadosuzewamu.medianewsonline.com/75335651480.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417207/normal_60497e374b9e7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nivuzujanux.myartsonline.com/medicinal_plants_definition.pdfIn PDF document text
    • https://f1cb2ec4-a82d-4768-8a06-5236a2db220e.filesusr.com/ugd/a2e20a_915bffe17eae49828799fa73a2b98ad8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2113e1b-bbb5-4441-a416-e02c1a5badac/xebebedofowepurixaxalulov.pdfIn PDF document text
    • https://cfecb619-c0f5-418d-ae9d-b1147643389f.filesusr.com/ugd/4cd51e_d33590ed54e747e6a326eb501114e0f0.pdf?index=trueIn PDF document text
    • https://49b7c339-fea6-4bb3-bf7b-ca47af5263df.filesusr.com/ugd/6ca12d_40b8269123f1493aa3c6e8ebfdbbac47.pdf?index=trueIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/75245328226.pdfIn PDF document text
    • https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_641ccf243df24f1f9e73bc6e39ced3b6.pdf?index=trueIn PDF document text
    • https://6438efa2-cbc3-4905-bec7-85cdafd94a34.filesusr.com/ugd/d1cf8b_5c7403a2722a4fa498fedc8a3ae863d8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6711f73d-1e5b-436a-92c8-c8e5a8e14c4b/83956032412.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_off0000fd5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5D 5532 bytes
SHA-256: 3fe41d102ca9a0739d21d9193b0a9993add73c894ef3f3ca2bf24cbc5c95818d
font_01_sfnt_off00011046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11046 11164 bytes
SHA-256: fad4a7fe7e25f14735e6d7aaa305bfa408f0fece088c634d66c82b8c2a1b09b3

Open this report in the interactive analyzer, or submit your own file for analysis.