Malicious PDF — malware analysis report

Static analysis result for SHA-256 4507ec1a895a192e…

MALICIOUS

PDF

433.8 KB Created: 2022-04-15 04:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 9c4b09f230a49606eed4b4cad9808176 SHA-1: 6aae5fa17cc50690fdc2e7f6a992fb755731bb1b SHA-256: 4507ec1a895a192e9eef56fb2e078680667e1de60164f28b0b851c6d5bb95218
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3350

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://vertracapital.com/uploads/files/nalututedi.pdf In PDF document text
    • http://arquivolta.net/files/zezutumuxo.pdfIn PDF document text
    • https://galovuxo.weebly.com/uploads/1/3/4/7/134760431/ea5520b9394620.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16235688f789d6---jazeradesaxaxedesatelupu.pdfIn PDF document text
    • https://jivafizet.weebly.com/uploads/1/3/4/7/134743279/jopulakipon.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/29236215364.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622fe3568840a---nuduz.pdfIn PDF document text
    • https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16230fa88972fa---44966391198.pdfIn PDF document text
    • https://kugatovobubusub.weebly.com/uploads/1/3/4/6/134680339/6702761.pdfIn PDF document text
    • https://lirikilufowu.weebly.com/uploads/1/3/1/0/131070293/b0b74a2edff8.pdfIn PDF document text
    • https://rugezanuw.weebly.com/uploads/1/3/1/4/131483337/7863468.pdfIn PDF document text
    • https://kejidelevotina.weebly.com/uploads/1/3/5/3/135326148/mazexuzekup_valawesawuv_tumututoz.pdfIn PDF document text
    • http://gzmzwl.com/Uploadfiles/files/walomomenesubot.pdfIn PDF document text
    • https://steyr-mannlicher.hu/admin/kcfinder/upload/files/ximawiromitutaxatotuxe.pdfIn PDF document text
    • https://namunoxup.weebly.com/uploads/1/3/5/3/135339392/65aa8b26dc90faf.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/b21637f68.pdfIn PDF document text
    • https://nevisnews.com/userfiles/voketawitopozinelu.pdfIn PDF document text
    • http://eurosolar.cz/res/file/57513713291.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/2fa44c45285d9bf4a8d5f79715ce1292/96448838900.pdfIn PDF document text
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/bejowo_nidebope.pdfIn PDF document text
    • https://queensflower.nl/clientfiles/rawokumemuxotokumuxutima.pdfIn PDF document text
    • https://bovatukal.weebly.com/uploads/1/3/0/7/130739183/vorawokapokamunimi.pdfIn PDF document text
    • http://thewesternmist.com/userfiles/file/bamamepalifesosipelo.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/televalejidom.pdfIn PDF document text
    • http://luisacortesearchitetto.it/userfiles/files/xudibatepimuni.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/tesarifuxivava.pdfIn PDF document text
    • http://cancercareresearch.com/userfiles/file/kupuvazidofuxefabot.pdfIn PDF document text
    • https://airsoft1.ro/files/file/73788426284.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/19b782e303c44b29d69caf5470c3cabe/xaxijanedutidovato.pdfIn PDF document text
    • http://meguro.pl/www/js/kcfinder/upload/files/retipimukoto.pdfIn PDF document text
    • https://fokomilek.weebly.com/uploads/1/3/4/8/134849947/4061582.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/161feba3a7c1bf---xulevawopaxogavuk.pdfIn PDF document text
    • http://sjatupornservices.com/file_media/file_image/file/45644483444.pdfIn PDF document text
    • https://jumusevobozi.weebly.com/uploads/1/3/5/3/135316543/niziruzaze_vatav.pdfIn PDF document text
    • http://valk.dn.ua/js/kcfinder/upload/files/digakeriwezidofubawewu.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1624ade4599b79---gadunabegijumewizasisag.pdfIn PDF document text
    • http://svm.kalistecom.org/img/files/25359967748.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/15126968104.pdfIn PDF document text
    • https://pexarokozisakim.weebly.com/uploads/1/3/5/3/135313666/5397652.pdfIn PDF document text
    • https://ruta.hu/ckfinder/userfiles/files/87092484253.pdfIn PDF document text
    • https://bubijusafas.weebly.com/uploads/1/3/5/9/135994311/kepumeta.pdfIn PDF document text
    • http://vatlieutaphu.com/upload/files/rigowarowuvidivevuxo.pdfIn PDF document text
    • https://pepazabam.weebly.com/uploads/1/3/4/6/134625160/253010fe.pdfIn PDF document text
    • http://chestheart.org/journal/assets/ckeditor/kcfinder/upload/files/81655506516.pdfIn PDF document text
    • https://ymy-tea.tw/upload/files/fadesunolabezo.pdfIn PDF document text
    • https://tuwureliw.weebly.com/uploads/1/3/4/1/134108737/3080512.pdfIn PDF document text
    • https://lafitezin.weebly.com/uploads/1/3/5/3/135323108/33fb5b28fffd9f.pdfIn PDF document text
    • https://moxudula.weebly.com/uploads/1/3/4/8/134884970/9635879.pdfIn PDF document text
    • https://lazav.co.za/XSRYdR1H?utm_term=balinese+spa+music+freePDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    +7 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006545e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6545E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00066c77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C77 10576 bytes
SHA-256: 2335be08bb330b4bfd191985a0cb8a86327b1d7f2855ed279eaff5a438c46d7a
font_02_sfnt_off0006848c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6848C 19928 bytes
SHA-256: c8d3e4336cbb3ecac661fcf7ecd8d4a838359ea632cdbe67a5b4f8ff34ce4b7c