Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3fad5c1d7c8bfa…

MALICIOUS

PDF

284.2 KB Created: 2022-02-22 09:58:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 37e7fa31a80c656cecb26a208e551ef6 SHA-1: db8d54a047bed2052997e4c61766ef34ca482c7d SHA-256: 4e3fad5c1d7c8bfaa7f041c364fce9cdefc34f8ef2b4b4e247b62b43cff5a158
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6715

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://loheb.co.za/XSRYdR1H?utm_term=finding+slope+worksheet+free PDF link annotation
    • https://caribemed.com/userfiles/file/4945655033.pdfIn PDF document text
    • http://godsownproperties.com/userfiles/file/ragowikozatojiv.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161aa859ceebe6---51987806609.pdfIn PDF document text
    • http://mptech.vn/ckfinder/userfiles/files/52213079599.pdfIn PDF document text
    • http://ecohouse-lab.de/userfiles/file/tazunozuluxa.pdfIn PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/63e919a80adbab6894b97c4a09804368/27752188166.pdfIn PDF document text
    • https://semineebrasov.ro/printuri-fi/files/63598551067.pdfIn PDF document text
    • http://bong-dem-long.org/upload/editor/files/15490495719.pdfIn PDF document text
    • http://www.alm-machines.be/kcfinder/upload/files/59402080021.pdfIn PDF document text
    • http://insuralead.com/userfiles/file/50374770277.pdfIn PDF document text
    • http://car-zone.sk/data/data/file/60288203697.pdfIn PDF document text
    • http://kimhoatra.vn/upload/fckimagesfile/15432551333.pdfIn PDF document text
    • https://la-klamm.org/Files/files/zekerigekigoxilimozu.pdfIn PDF document text
    • http://www.lebedosapartotel.com/data/yukle/files/libabugorexil.pdfIn PDF document text
    • http://becskeicsodajo.hu/admin/fck_upload/file/gidunesu.pdfIn PDF document text
    • http://bjjiffy.com/upload/vavilugozivebukokugeloxop.pdfIn PDF document text
    • http://webinaris.net/ckfinder/userfiles/publics/files/45579690663.pdfIn PDF document text
    • http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/161adf0a15862e---bexigaditubalisubexoxowi.pdfIn PDF document text
    • http://hak-al.com/resimler/files/78944752836.pdfIn PDF document text
    • http://geoman.cz/data/file/dimolixomalaveduwu.pdfIn PDF document text
    • https://dolmalatrek.com/userfiles/file/92414071157.pdfIn PDF document text
    • https://cartorioleandrofelix.com.br/kcfinder/upload/files/nizudululux.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611de2b052a79---39564880007.pdfIn PDF document text
    • https://karapinarinsaat.net/userfiles/upload/file/31950753509.pdfIn PDF document text
    • https://rajaketiga.com/contents/files/rupuwutetutejogelarasafu.pdfIn PDF document text
    • http://dip.natura2000.pl/imgturysta/files/64545925377.pdfIn PDF document text
    • http://battle.bpv.su/content/files/files/wukefovusudogepegulusek.pdfIn PDF document text
    • http://www.alcera.ca/userfiles/file/tewijewijirij.pdfIn PDF document text
    • http://bibliotekaszamocin.pl/img/upload/files/45737987485.pdfIn PDF document text
    • https://ukmalayalamnews.com/userfiles/file/58623381049.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba17b2671a---misubureretoritafo.pdfIn PDF document text
    • http://studioarchterreni.it/userfiles/files/99785961163.pdfIn PDF document text
    • http://wrtour.com/FileData/ckfinder/files/20220108_A81F69F723649288.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_off00040230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40230 10772 bytes
SHA-256: fb57b0adc15c550e8d5ae97574ac5e64b6aad682e5c2e509cbf4125a58276f2e
font_01_sfnt_off00041aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41AAB 18056 bytes
SHA-256: 8d83941f600519f4bb2dccf01d60dde8116bda05bc9943a31189e461a2c27e3d
font_02_sfnt_off000449e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x449E1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9