Malicious PDF — malware analysis report

Static analysis result for SHA-256 b617a12b8e681443…

MALICIOUS

PDF

374.6 KB Created: 2022-03-26 01:19:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: c3e6c729c8afff7ac43f557326105f48 SHA-1: e737aac9fdcc0ba5a27b4418038947d34cfe4a32 SHA-256: b617a12b8e6814436df97c9327cfcff1e2e3078e19c51aa6fc9c0174537b52af
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5536

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://colod.co.za/XSRYdR1H?utm_term=arthur+schopenhauer+books+pdf+download PDF link annotation
    • http://webursitet.org/kcfinder/upload/files/woxeg.pdfIn PDF document text
    • http://inlocoodontologia.com.br/assets/kcfinder/upload/files/lunorope.pdfIn PDF document text
    • http://afi-dwls.de/upload/files/21520830264.pdfIn PDF document text
    • http://asesorgubernamental.com/images/file/86438311983.pdfIn PDF document text
    • http://www.oiseaubleu-promo.fr/userfiles/file/misijananutixixa.pdfIn PDF document text
    • http://professional-tuner.at/uploaded/file/89121269968.pdfIn PDF document text
    • https://alternatifhirdavat.com/upload/ckfinder/files/50189969001.pdfIn PDF document text
    • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/a127bcd18bb0d3840a29065b1cfd3568/67552834027.pdfIn PDF document text
    • https://karsdanapazari.com/panel/kcfinder/upload/files/xiwodutanumusujusoged.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/162377150b8a73---37054071687.pdfIn PDF document text
    • http://www.look4job.gr/images/_user_na/file/jezese.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/42948524224.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/2046ab668fbad8f0bc21621261842ed5/manezulupilafumiwebabo.pdfIn PDF document text
    • http://xn--q20b13r9leepaeb.net/upload/file/202203072158479386.pdfIn PDF document text
    • https://korankertas.com/contents/files/bugefugiridikimipe.pdfIn PDF document text
    • http://dyneco.kr/userData/board/file/dotid.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620811df2647e---jatejilopexagefoxovuvu.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622431f01466d---fuvila.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/6c56c3c702f3486860501b5197648bfe/rezeleveven.pdfIn PDF document text
    • http://blog-lunettes.top-lunettes.com/userfiles/file/50793043585.pdfIn PDF document text
    • http://korio-olsztyn.pl/userfiles/file/42811630921.pdfIn PDF document text
    • https://movimientofamiliadejesus.com/images/uploaded/file/26547276388.pdfIn PDF document text
    • http://autothudo.vn/upload/fck/file/jesikepadi.pdfIn PDF document text
    • http://hanker.ru/web/img/files/patunejakugufidilufo.pdfIn PDF document text
    • http://thietbimaugiao.vn/Images_upload/files/50981941867.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162363988879f2---xekoxefufevunadizomexa.pdfIn PDF document text
    • https://www.aatae.pt/backoffice/assets/js/kcfinder/upload/files/260375006.pdfIn PDF document text
    • http://libertyquad72.fr/userfiles/file/19440565033.pdfIn PDF document text
    • http://glassinter.de/kcfinder/upload/upload/33571910510.pdfIn PDF document text
    • http://part-service55.ru/kcfinder/upload/files/xuxuwomubobebunami.pdfIn PDF document text
    • http://eastindiaspray.com/suvra/eastindia_spray/files/13858329862.pdfIn PDF document text
    • https://aashianarealty.com/file/jexexefaruwenofed.pdfIn PDF document text
    • http://chinawin-consult.com/userfiles/29251470075.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/20273353381.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/37d1e20dbf38dd60c9975d8f6c541bb5/25067039629.pdfIn PDF document text
    • https://zufiks.pl/uploads/userfiles/files/kexitabekas.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 extracted file (font_00_sfnt_off000551d4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000551d4.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000551d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x551D4 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off000567d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x567D6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00057ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57EF6 11024 bytes
SHA-256: a7c3b1d99ccf3d36537ddfe295a51588a13b47b9d69165fbb2bcf0abd41bd7cc
font_03_sfnt_off0005986f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5986F 18972 bytes
SHA-256: f69e13bddd5e2717f354777f793c9094aa5efcabac5f18a4d73d2bdf892efa53