Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb976eb39599fd25…

MALICIOUS

PDF

72.9 KB Created: 2021-03-21 20:41:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c5593d9068cbb336f57a14488d6c5ca SHA-1: 78d734fa313800c3ad8f17fb2faaedf45162659d SHA-256: eb976eb39599fd252e5748e8346de741b0e31304c034c19ae07245de6d37952e
66 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a high number of embedded links, many of which point to disposable domains and are part of a link farm. The ML classifier also flagged this PDF as malicious with high confidence. These factors suggest the document's primary purpose is to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/strik?utm_term=onn+bluetooth+clock+radio+with+qi+wireless+charging PDF link annotation
    • http://vijexibat.mywebcommunity.org/classical_guitar_tabs_free.pdfIn PDF document text
    • http://kumajamefe.getenjoyment.net/la_llave_menor_de_salomon.pdfIn PDF document text
    • http://reduslim-shopofficial.site/kipegibepawuxetel4ajgc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421038/normal_602383268755c.pdfIn PDF document text
    • http://veruvipavopa.getenjoyment.net/libro_los_compas_y_el_diamantito_legendario_descargar.pdfIn PDF document text
    • http://cadenalia.com/degugipawafevepif19t0u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372983/normal_603a558e1977f.pdfIn PDF document text
    • http://vitrinachel.ru/459009549110yvzz.pdfIn PDF document text
    • http://ledy66.net/684635583591mc5j.pdfIn PDF document text
    • http://zalavsky.ru/palenidobijurk5cfq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405945/normal_6032b4be5b69d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390366/normal_60014cd5d76c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391037/normal_5fe59bb293da3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368240/normal_601a9d05c7064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444850/normal_601834328dd20.pdfIn 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/8368ab86-e2e9-4c87-8829-eef41f9bd400/sears_nordictrack_elliptical_warranty.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3488a1d-fae3-4a0a-b4c6-c8ce7d9196ef/how_to_draw_a_moon_with_oil_pastels.pdfIn PDF document text
    • https://s3.amazonaws.com/legesiliv/confessions_st_augustine_best_translation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e7d553d-1e4d-429a-8461-030ff6bedd15/gomomasipugajimawage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0ea58fb-3cb9-4b2b-8c44-cb560c6e1078/50501521336.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/daniel_plant_paramedic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/793b5390-c51e-4478-9f3b-05295df22a99/alesis_dm5_pro_module.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_off0000de2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE2E 5652 bytes
SHA-256: ea3fe94b389def4582f27e57bbb24b7d67ba41edc5a618e2977b17bd068e695b
font_01_sfnt_off0000f15c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15C 10620 bytes
SHA-256: 882e38c13dc80b9155d9203cf8b8355959869dc1f9acea931254f8aed48db210

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