Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1a33f76a2fd192…

MALICIOUS

PDF

314.4 KB Created: 2022-03-15 05:50:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 558f721c88a4eea1bab9a19a2ebbeeae SHA-1: 954f6e876ad490f986c7e2d4dc0f687c268d1ea4 SHA-256: 5a1a33f76a2fd192475b369de0f931d3a6aaf329a0503f282a27ef959d573265
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6091

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=java+7+64+bit+offline PDF link annotation
    • http://allamericannursing.com/userfiles/file/12998138384.pdfIn PDF document text
    • http://startmatbaa.com/userfiles/file/tosaxir.pdfIn PDF document text
    • https://ms01bet.com/contents/files/buzudeminula.pdfIn PDF document text
    • http://www.tractortools.cz/ckfinder/userfiles/files/vuzarofapodixelogupo.pdfIn PDF document text
    • http://coopaac.com/assets/kcfinder/upload/files/rolapowabaridufaxavobe.pdfIn PDF document text
    • http://cttinteriery.cz/files/upload/files/94029084281.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16229e4d0f0246---75391064369.pdfIn PDF document text
    • http://chinahongji.com/d/files/46209092945.pdfIn PDF document text
    • https://www.jakketoes.be/ckfinder/userfiles/files/waratane.pdfIn PDF document text
    • http://finance-bulldog.cz/UserFiles/File/kifuwonitebaral.pdfIn PDF document text
    • http://studioferrato.it/userfiles/files/87952821381.pdfIn PDF document text
    • https://gotoko.com/cmsv2/upload/files/retevofasanetujegiv.pdfIn PDF document text
    • https://www.camaragranada.org/administracion/kcfinder/upload/files/wosusolovesumabikivaxo.pdfIn PDF document text
    • https://i-triada.net/upload/files/51017629269.pdfIn PDF document text
    • https://callmarkinvestments.fortunekenya.com/callmark/files/13333165710.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/18045284119.pdfIn PDF document text
    • https://kotata-zlin.cz/obr/clanky/file/4117151130.pdfIn PDF document text
    • http://afksport.cz/upload/files/gagurelefobujofo.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/file/43018841631.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/de641e94c189a1550fd35a04096a4291/sulukenuxi.pdfIn PDF document text
    • https://wiskind.com/filespath/files/20220315072909.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/33522104063.pdfIn PDF document text
    • https://ofertaromania.ro/ckfinder/userfiles/files/mofedovovelepexamib.pdfIn PDF document text
    • http://mayingiabao.com/upload/files/61608080220.pdfIn PDF document text
    • http://silverk.ru/img/lib/file/34601902024.pdfIn PDF document text
    • http://kedehg.com/ckfinder/userfiles/files/27157998570.pdfIn PDF document text
    • https://luckysurface.itweald.com/uploads/files/6224a2c608c45.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/68305420659.pdfIn PDF document text
    • http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1620901b2cae0e---lafefibarolalutup.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/cc9ce5be34f724d3df335f06399753ed/2750200082.pdfIn PDF document text
    • http://angolfuvar.com/admin/ckeditor/kcfinder/upload/files/70078351244.pdfIn PDF document text
    • http://pileshoppen.dk/userfiles/file/genafedepamajosafes.pdfIn PDF document text
    • http://photou.cc/ckfinder/userfiles/files/wajikadogubuvogonemivisi.pdfIn PDF document text
    • http://jiin-torng.com/uploadfiles/20220203214646.pdfIn PDF document text
    • https://suvagcentr.ru/userfiles/files/gosukipajubijugivijanawu.pdfIn PDF document text
    • https://protraderin.com/userfiles/file/kedibize.pdfIn PDF document text
    • https://helicopterleasingservices.com/userfiles/files/mevavijuxuxonetisalogeji.pdfIn PDF document text
    • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/21546842901.pdfIn PDF document text
    • https://iieng.org/editor/ckfinder/userfiles/files/64526081031.pdfIn PDF document text
    • https://podereilmontaleo.it/writable/public/userfiles/file/fiwevodubad.pdfIn PDF document text
    • http://etasystem.net/userfiles/files/13564127310.pdfIn PDF document text
    • https://cartonwrappingmachine.com/userfiles/file/sozokutizagipulibu.pdfIn PDF document text
    • http://forensique.biz/app/webroot/kcfinder/upload/files/37586040800.pdfIn PDF document text
    • http://highspiritsmusic.com/ckfinder/userfiles/files/74492502835.pdfIn PDF document text
    • https://themis-lex.com/userfiles/files/1227363570.pdfIn PDF document text
    • http://newgrids.com/userfiles/file/giwogiwu.pdfIn PDF document text
    • http://brette-animation.com/userfiles/file/78262744793.pdfIn PDF document text
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/73788867314.pdfIn PDF document text
    • 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_off00047d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47D0B 10432 bytes
SHA-256: b80882e667e11e5f8a20b222117579a82e9811b75260149b1355909dfe4f2f99
font_01_sfnt_off000494fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494FC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004ac19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC19 17332 bytes
SHA-256: 1a416ca8c4699765a189635472f6c934a801f2f23440a0d92722225223583f4c