Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fc114277f8b1be…

MALICIOUS

PDF

78.6 KB Created: 2021-03-29 12:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-13
MD5: adeeb444e14f0c2b8dc73be4be93cb30 SHA-1: 751341f1879e020f57a2fdbb60f0ffc13aa120fd SHA-256: f2fc114277f8b1be8b36767e6ed8d5324e1bb8da02662d0e0a039697049d018b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/123?utm_term=identifying+parts+of+speech+worksheet+answers PDF link annotation
    • http://gigogon.22web.org/weight_loss_tips_in_tamil.pdfIn PDF document text
    • https://cdn.sqhk.co/posukomokufi/UhaUAVi/ghost_guns_legal_in_ma.pdfIn PDF document text
    • http://sbrf.link/webmail_etiqueta_de_acessok54ls.pdfIn PDF document text
    • https://cdn.sqhk.co/riketumes/fiflict/xosevoxizonasoluturu.pdfIn PDF document text
    • https://cdn.sqhk.co/naxudufejik/0ghgc6z/silolilonoxagoruxim.pdfIn PDF document text
    • https://xekariwunaju.weebly.com/uploads/1/3/1/0/131070431/wavoze.pdfIn PDF document text
    • http://com-copyrighit.com/fubofifowepelujorajodiwqwe8y.pdfIn PDF document text
    • https://nipoxumafoji.weebly.com/uploads/1/3/4/7/134717148/dapat.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/jbggS7U/tropico_5_multiplayer_save.pdfIn PDF document text
    • http://getplafond.xyz/vixowofiwovuxe605s8.pdfIn PDF document text
    • https://cdn.sqhk.co/xadakede/Pih5jdE/jebutex.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/fAtfdFn/raspberry_jam_linzer_cookies.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwosowo/gkiaIzF/xajilubib.pdfIn PDF document text
    • https://xemojunaxumig.weebly.com/uploads/1/3/4/2/134265853/44218.pdfIn PDF document text
    • http://bavedibigilomit.66ghz.com/cbse_guidelines_for_class_12_bst_project.pdfIn PDF document text
    • https://cdn.sqhk.co/lunilageruvu/eWhaohh/63417123789.pdfIn PDF document text
    • https://ropoxazuwaso.weebly.com/uploads/1/3/4/0/134040565/kidamuwujawojivowiv.pdfIn PDF document text
    • https://migirebunimalab.weebly.com/uploads/1/3/1/3/131383914/niwafuva.pdfIn PDF document text
    • http://labincom-med.ru/638489255173sxa8.pdfIn PDF document text
    • http://inglassrus.ru/fuwobawawosenarai2k5.pdfIn PDF document text
    • https://wipowoniwosixad.weebly.com/uploads/1/3/0/7/130740259/badebigenekifazevumi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nizapowedasa.rf.gd/reporter_la_date_de_livraison_en_anglais.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_off0000f658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF658 5580 bytes
SHA-256: b033206fff8d163c1db017cc58bfbc8b9be82b3f6624f04497b684e6e630ed5f
font_01_sfnt_off00010971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10971 10456 bytes
SHA-256: 6bca9e37e887aafc7f3be70805e77a500bfe8b73d52adb722145bfe2f966a8cb

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