Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af4503deaefb7c2…

MALICIOUS

PDF

468.5 KB Created: 2022-02-04 23:30:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: f479ea5fc34a14df3c89f125aa45fed3 SHA-1: d1db4415cf997d0ea240e145d7fff630a31f5246 SHA-256: 4af4503deaefb7c27fa60af1852f6f31afe429404e39690d2b01ea0297f0d727
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4622

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://lovig.co.za/XSRYdR1H?utm_term=beautiful+disaster+book+free+pdf PDF link annotation
    • https://mgc.to/sites//web/upload/files/88354201701.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-11-16/20211116141202393720.pdfIn PDF document text
    • http://arc-en-cielproduce.com/ckfinder/userfiles/files/bebetarowalowevuwaf.pdfIn PDF document text
    • http://bukharasuwanee.com/sites/default/files/file/womezutizafafafasexumuxun.pdfIn PDF document text
    • http://waterlootour.com/FileData/ckfinder/files/20210901_2CDAD56C0968D54D.pdfIn PDF document text
    • http://slovoveri.org/userfiles/kaponukalalodusetusutadi.pdfIn PDF document text
    • http://aloeverajuice.cz/files/file/nugarolobu.pdfIn PDF document text
    • https://rafaela-motores.com/userfiles/file/61262026810.pdfIn PDF document text
    • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/77128154042.pdfIn PDF document text
    • http://mlspoland.co/files/file/55904567678.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/161402915b9b47---45298627533.pdfIn PDF document text
    • http://siciny.pl/userfiles/file/80391837870.pdfIn PDF document text
    • https://plasy.com/uploads/file/kazugemivizij.pdfIn PDF document text
    • https://ww150008.linebot.net/upfile/files/20211211164513.pdfIn PDF document text
    • https://cape-electronics.com/media/file/betuwozitaxiwozixukorej.pdfIn PDF document text
    • http://radtel-sport.pl/userfiles/file/30157519414.pdfIn PDF document text
    • http://argyleliquidations.com/userfiles/files/9701881494.pdfIn PDF document text
    • http://maquetland.com/v2/images_articles2/files/fapusekolemaxirukelojot.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/42950383792.pdfIn PDF document text
    • http://kabekaketv.net/uploads/files/35064042612.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ec119458087---sononabofunudifudokixe.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c544aad3d40---doziwivogalomezemo.pdfIn PDF document text
    • https://baxsporthorses.com/userfiles/file/74111915558.pdfIn PDF document text
    • http://corkpotters.com/images/lukes.pdfIn PDF document text
    • http://isisthailand.org/file_media/file_image/file/84902030852.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/t8v9u88u315p8kefk5m6b6dn5e/78005418997.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/89280341982.pdfIn PDF document text
    • http://www.manorbymajor.com/userfiles/files/bozuwitunozomofi.pdfIn PDF document text
    • http://stinpo.com/ckfinder/userfiles/files/92144803140.pdfIn PDF document text
    • http://totoquynhhuong.com/upload/files/72496433186.pdfIn PDF document text
    • https://bulkleynechako.gocascadia.com/images/cms/file/sefujaz.pdfIn PDF document text
    • https://lbjgold.in/ckfinder/userfiles/files/65345369067.pdfIn PDF document text
    • http://skulpt.in/admin/uploads/file/jogubopipo.pdfIn PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/bidol.pdfIn PDF document text
    • http://smsgurugram.com/miet/assets/files/49446772339.pdfIn PDF document text
    • https://sca-eagleegg5k.com/ckfinder/triplebuserfiles/file/91679332027.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_off0006e655.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E655 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006fd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD70 16960 bytes
SHA-256: 2f7a0574d3ddf8a36e64f46cdb2e3229c233fd1c51a35833d7b0cafd769628b2
font_02_sfnt_off00072959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72959 10772 bytes
SHA-256: b73def2945b9769322c81734ee91f4c4c74d1048dcfacc70830441413e8388a2