Malicious PDF — malware analysis report

Static analysis result for SHA-256 6246ef56779fc1ae…

MALICIOUS

PDF

531.1 KB Created: 2022-02-26 07:11:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 59cf947326b67163378e0da861bf53ec SHA-1: 17be484133121dfd869dd1c3b3831adc06d205da SHA-256: 6246ef56779fc1ae38e7631f57f0203f4fe7b81945a300dcdc05af6d77be057a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4567

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
  • 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 https://podar.co.za/XSRYdR1H?utm_term=winter+clothes+worksheets+for+kindergarten PDF link annotation
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615a6d7e62cf1---56319569315.pdfIn PDF document text
    • http://nhatminhtrading.vn/app/webroot/uploads/files/wezizawotagiberizup.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/in8519spblbtbnl810i49aq85f/72012870604.pdfIn PDF document text
    • http://solo-reisen.com/media/images/file/botarabiluraf.pdfIn PDF document text
    • http://ivankotov.ru/img/lib/file/95788386716.pdfIn PDF document text
    • https://optimuselearningschool.com/learning/site/images/uploadfiles/11880173115.pdfIn PDF document text
    • http://fkhd.cz/data/img/71748737340.pdfIn PDF document text
    • http://charontrade.hu/data/file/87144039636.pdfIn PDF document text
    • http://blackswaninfotech.com/kcfinder/upload/files/xutavasibipokavivad.pdfIn PDF document text
    • http://thibangoto.com/app/webroot/uploads/files/lilejegumuwefofaginasij.pdfIn PDF document text
    • http://radio6deenero.com/uploaded/files/56781700954.pdfIn PDF document text
    • http://jaluzipro.ru/public/userfiles/file/kinutanojebewizoti.pdfIn PDF document text
    • http://elite-nails.pl/Upload/file/nidamebezedipukav.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160f0dec9d4101---13466905693.pdfIn PDF document text
    • http://knupress.com/pds/editor/file/79987600244.pdfIn PDF document text
    • https://tkaniny-svitap.cz/kcfinder/upload/files/4799611826.pdfIn PDF document text
    • http://protok.pro/upload/files/tudexuzuvo.pdfIn PDF document text
    • http://hangquangauto.com/files/70198443.pdfIn PDF document text
    • https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/161e18cc4915f5---56270058222.pdfIn PDF document text
    • http://micruts.org/userfiles/file/76158695696.pdfIn PDF document text
    • http://gtlfuelmarine.com/userfiles/file/60600704373.pdfIn PDF document text
    • http://aj-freight.com/ckfinder/userfiles/files/napixexotodu.pdfIn PDF document text
    • https://weboonline.com/ckfinder/userfiles/files/88150854775.pdfIn PDF document text
    • http://nwmanagement.ru/generic/uploaded/file/4821089670.pdfIn PDF document text
    • http://xn--oy2b9bv81anouola.com/upload/file/202201120329589276.pdfIn PDF document text
    • http://www.banzolaassociati.com/gestlab/kcfinder/upload/files/78830207592.pdfIn PDF document text
    • http://toitureetfacade.fr/data/Files/34763908917.pdfIn PDF document text
    • http://stepasidemedical.ie/images/uploads/file/72188975972.pdfIn PDF document text
    • https://wietsevoermans.nl/ckfinder/userfiles/files/sijoroxizawopasodulirar.pdfIn PDF document text
    • http://cjmfgxfollow.morefriendship.com/upload/files/61598944147.pdfIn PDF document text
    • http://vnos.vn/app/webroot/uploads/files/dasewavan.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20210929021614.pdfIn PDF document text
    • https://hbphoto.ca/resimler/files/vedewuwavasurezo.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210901211640468.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007d84f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D84F 19824 bytes
SHA-256: 09f7ba3f3b4578027d40cf781bf7cc001ed56ba4bdf66bc7effb1a2cab0a07b7
font_01_sfnt_off00080c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C0A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0008232a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8232A 10924 bytes
SHA-256: bec8f88fb3c7edf118a0f116c5f214ddcd734bf40c79b156ae285d181736795e