Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4faa871fb580fad…

MALICIOUS

PDF

302.0 KB Created: 2022-02-25 21:35:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: 0821384fe10ec22a936f2edcfce5bfa3 SHA-1: db792fe3bbb6ee397f39f208620ad8bffcc6507b SHA-256: a4faa871fb580fad9f8c9f55143122cb5450be91181fbcbdb07471d781f54c1a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6133

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://yubit.co.za/XSRYdR1H?utm_term=fifa+20+cover+template PDF link annotation
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/aps1iv5qc22thetm5cb966roso/luvisepat.pdfIn PDF document text
    • http://zhongjiukeji.com/upload_fck/file/2021-12-26/20211226074526102696.pdfIn PDF document text
    • https://aromamarketing.md/img/files/bonotobofekabenakopene.pdfIn PDF document text
    • https://hometeamcorp.com/images/usr/tinusojofuji.pdfIn PDF document text
    • http://neogmbh.de/www/sites/default/files/userfiles/file/89382651209.pdfIn PDF document text
    • https://tigapilar.com/upload/files/80128515113.pdfIn PDF document text
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161207b5380c4a---dumulimala.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/h8nom4c54i44slek6oe2bm8quo/dekuki.pdfIn PDF document text
    • http://soundspace.eu/Upload/file/sulibutudafuwizabur.pdfIn PDF document text
    • https://istanajp2.com/contents/files/lozatig.pdfIn PDF document text
    • http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/43809978909.pdfIn PDF document text
    • http://dui-antidote.com/images/userfiles/file/84209441790.pdfIn PDF document text
    • http://travelshops.pl/userfiles/file/jedetivibikuremefolalijor.pdfIn PDF document text
    • http://kleinschaden-expert.com/userfiles/file/tetiwobovuxugu.pdfIn PDF document text
    • http://www.dilipprabhavalkar.com/images/file/fotimeruxerozevojovi.pdfIn PDF document text
    • http://dailygameresult.com/editor/UserFiles2/files/88221882816.pdfIn PDF document text
    • http://aristosaigonhotel.vn/uploads/files/wekemumusesudaladapebix.pdfIn PDF document text
    • http://progettocecinacuore.it/writable/public/userfiles/file/972952917.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/e3c1084bcfe089dbd93bafb05ba55f1c/93571916969.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16102bd4f2ed13---lekunipararusobugu.pdfIn PDF document text
    • https://havadisname.com/upload/ckfinder/files/86632516877.pdfIn PDF document text
    • https://eminentland.com/admin/userfiles/files/nikusumibodulezil.pdfIn PDF document text
    • http://grandwatergatehotel.com/upfile_hotel/files/56268411985.pdfIn PDF document text
    • http://asiancfea.org/userfiles/file/51176545393.pdfIn PDF document text
    • http://paneldeconsos.com/userfiles/file/rakoxomijifufoxulexeza.pdfIn PDF document text
    • http://i-daa-wl.de/userfiles/zitodamalanitoniv.pdfIn PDF document text
    • http://tydafa.com/dafa/uploadfiles/20220217125806.pdfIn PDF document text
    • http://www.siposferenc.hu/html/23724658698.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210182164955---55271392227.pdfIn PDF document text
    • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/vowedutonowigaximevi.pdfIn PDF document text
    • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/677a9fad3800f2f6fddf27a1a6d0d72c/jawaweto.pdfIn PDF document text
    • http://run2endalz.org/clients/2/2b/2b4973775a35d8819257a28a16fdea67/File/rorusojejedavuj.pdfIn PDF document text
    • https://deshpanday.com/ckfinder/userfiles/files/56052252339.pdfIn PDF document text
    • https://mph.cz/upload/files/87445583065.pdfIn PDF document text
    • http://seteo-dechets.com/images/file/15977780443.pdfIn PDF document text
    • https://jagamimpi.org/contents/files/33581178299.pdfIn PDF document text
    • https://dnm.tw/uploads/files/202109200442534186.pdfIn PDF document text
    • http://vinhhangvien.com/upload/files/89288466352.pdfIn PDF document text
    • http://ticaproduce.com/ckfinder/userfiles/files/58979098898.pdfIn PDF document text
    • http://eventclub.pl/userfiles/file/rogakupefuvoki.pdfIn PDF document text
    • http://world-system-packet.com/userfiles/file/wozekopi.pdfIn PDF document text
    • http://ngnjl.com/userfiles/files/komibomolubeditiso.pdfIn PDF document text
    • https://ipic.vn/userfiles/file/21073663942.pdfIn PDF document text
    • http://lamekatus.com/uploads/ckeditor/files/laxafoxuzas.pdfIn PDF document text
    • http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/4628470223.pdfIn PDF document text
    • http://dep14kirov.ru/userfiles/file/74714435255.pdfIn PDF document text
    • http://emachn.com/data/attachment/file/43439888470.pdfIn PDF document text
    • http://misosmile.com/upload/editor/files/tututijinivudixisatuwix.pdfIn PDF document text
    • http://crm333.com/documentos/file/20563775528.pdfIn PDF document text
    +10 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44577 10652 bytes
SHA-256: 8ae9f52df1ddfd9e009dd5d3f5265b075972b9e59c72857e2c43b228f5e41c3b
font_01_sfnt_off00045df3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45DF3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00047513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47513 18520 bytes
SHA-256: ad3ceda558d3adfe60fe8a766f30ffc8386a703929097ddb52eb26098e07c7b9