Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a19c0728df1e637…

MALICIOUS

PDF

129.0 KB Created: 2022-05-06 15:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: e90362f06f024671d7c8f784d7673b40 SHA-1: 3f453877b6288631f7cd1162670328ad9f843d6d SHA-256: 5a19c0728df1e6379558eb56d9488141062a593df8a6fc197034d3d28cb80f36
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yubit.co.za/XSRYdR1H?utm_term=livro+o+neoliberalismo+hist%C3%B3ria+e+implicacoes+pdf+para+portugues+para+portugues PDF link annotation
    • https://vevusivo.weebly.com/uploads/1/3/0/8/130874001/kufag.pdfIn PDF document text
    • https://milonotupilo.weebly.com/uploads/1/3/5/3/135347339/powegan-bujixexonusig-banazot.pdfIn PDF document text
    • https://mitosimizede.weebly.com/uploads/1/3/4/3/134372473/698d07.pdfIn PDF document text
    • https://welatarobepivi.weebly.com/uploads/1/4/1/2/141279237/8699122d33a7.pdfIn PDF document text
    • https://loxufoxoxow.weebly.com/uploads/1/3/5/9/135982175/49659ece.pdfIn PDF document text
    • https://lejonuxajam.weebly.com/uploads/1/4/1/4/141489091/sodekosowikuzirovab.pdfIn PDF document text
    • https://banijeweziwi.weebly.com/uploads/1/3/4/8/134873891/7570746.pdfIn PDF document text
    • https://thic.net/plugin/ce1/ckfinder/userfiles/files/85074256827.pdfIn PDF document text
    • https://gikuniwuremokul.weebly.com/uploads/1/4/1/6/141628555/ec9626b74985d.pdfIn PDF document text
    • http://www.srijonihealinghome.com/fckimages/file/80716910153.pdfIn PDF document text
    • https://gazitagoro.weebly.com/uploads/1/3/4/0/134016873/juwuwelagarezin.pdfIn PDF document text
    • https://jiwepeduvebata.weebly.com/uploads/1/3/1/4/131456267/dodatefamadopix.pdfIn PDF document text
    • https://amata.org.uk/ckfinder/userfiles/files/56600518323.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/zamulokilej.pdfIn PDF document text
    • http://www.tamar.org.br/fotos_news/files/dewevumirusa.pdfIn PDF document text
    • http://cosonhuath.com/hinhanh_fckeditor/file/vukowo.pdfIn PDF document text
    • https://niladomawinur.weebly.com/uploads/1/3/4/8/134875702/1b23423.pdfIn PDF document text
    • http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/80274404182.pdfIn PDF document text
    • https://studiopixel.pixtoonstudio.com/img/files/ratakiduwupibiwozadaraw.pdfIn PDF document text
    • https://bigififipajug.weebly.com/uploads/1/3/4/7/134709095/9164563.pdfIn PDF document text
    • http://wefocusdesign.com/upload/files/51154344053.pdfIn PDF document text
    • http://studiobonvino.com/userfiles/files/sokofalinanuvumarile.pdfIn PDF document text
    • https://wopusuxosar.weebly.com/uploads/1/3/4/5/134583764/kubezagarif.pdfIn PDF document text
    • http://wetravels.com/kcfinder/upload/files/kiditu.pdfIn PDF document text
    • http://gr-chem.com/upload/files/73067872788.pdfIn PDF document text
    • https://sinosopad.weebly.com/uploads/1/3/4/8/134892142/878b14.pdfIn PDF document text
    • https://xagiwejobumumok.weebly.com/uploads/1/3/6/0/136051235/7abb3.pdfIn PDF document text
    • http://polipack.ru/content/file/39644755887.pdfIn PDF document text
    • https://moketotal.weebly.com/uploads/1/3/4/3/134315425/6792968.pdfIn PDF document text
    • https://pawizujepus.weebly.com/uploads/1/3/1/6/131637171/9725914.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/49001955883.pdfIn PDF document text
    • http://immodraft.de/images/architekten_agentur_images_/file/vefuxetanabobofa.pdfIn PDF document text
    • https://losulojer.weebly.com/uploads/1/3/0/7/130739206/3c9a7a9d0c9.pdfIn PDF document text
    • https://vekibapovadivoz.weebly.com/uploads/1/3/0/8/130873848/7c5fb7b95.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/83261748275.pdfIn PDF document text
    • https://sazoluxo.weebly.com/uploads/1/4/1/3/141389756/savewikut.pdfIn PDF document text
    • http://ttlh.vn/storage/ckfinder/files/nerodejagirid.pdfIn PDF document text
    • https://fesoviso.weebly.com/uploads/1/3/4/7/134710514/jobimuzan-kokimabuxur-bibetegora.pdfIn PDF document text
    • http://vinarstvi.webra.cz/userfiles/file/worapadujugopepomepanavuk.pdfIn PDF document text
    • https://gewaxuselez.weebly.com/uploads/1/3/4/2/134265722/zanovaxi.pdfIn PDF document text
    • https://dadikokaw.weebly.com/uploads/1/3/5/3/135347495/tatizevedukaf-rekagadari-panukerimof.pdfIn PDF document text
    • https://vexatugibulaw.weebly.com/uploads/1/4/1/4/141417993/168968.pdfIn PDF document text
    • https://firsatpin.com/calisma2/files/uploads/76678849995.pdfIn PDF document text
    • https://gupaxapofigovi.weebly.com/uploads/1/3/4/3/134356466/degogunaxub-belodi.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
    +3 more URL(s)

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18CDD 20084 bytes
SHA-256: c9063edbfce8de8804bcb205134a5990b7cae0193b92887d420d6b213088e93c
font_01_sfnt_off0001be38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE38 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001d64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D64F 11468 bytes
SHA-256: 7fca1cbf21a01b56bc8ff7c17bde47faa70e877d0cb3ba08f4b514c570554290

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