Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d2322c88c8d5e6…

MALICIOUS

PDF

75.4 KB Created: 2022-01-20 20:51:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 8e1c36df89f3195d58931ce13de19dc6 SHA-1: 9b6d83f0f5710723b6324d824446144caa4f3fd0 SHA-256: c5d2322c88c8d5e68bbd23723209099cd24424efe12d37ac9dc23021558a4aa4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9870

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://die-elke.de/cms/elke_page_files/file/92408741163.pdf In PDF document text
    • http://piotrkowska77.pl/zdjeciafile/bukopejajelenifinezusinug.pdfIn PDF document text
    • http://synfarm.com/upload/files/tebukesixamavizilesiva.pdfIn PDF document text
    • http://part-service55.ru/kcfinder/upload/files/60169532805.pdfIn PDF document text
    • http://gesht.ru/admin/ckfinder/userfiles/files/negunel.pdfIn PDF document text
    • http://mega.kz/media/upload/files/40312507899.pdfIn PDF document text
    • http://k-sta.kr/FileData/ckfinder/files/20211014_E535E209285BEA24.pdfIn PDF document text
    • http://cadex-forensique.com/app/webroot/kcfinder/upload/files/32030779494.pdfIn PDF document text
    • http://plkorea77.com/ckupload/files/nezikevaneriromodanadan.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/72579620530.pdfIn PDF document text
    • http://dunajecbiala.pl/upload/File/zatikuxuko.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e6e4c2cbc52---79207999829.pdfIn PDF document text
    • https://epponline.com/mentorfinancial/page_images/file/35800242716.pdfIn PDF document text
    • http://aldo-ins.com/userfiles/file/vokawo.pdfIn PDF document text
    • http://metrominicabs.com/survey/userfiles/files/kupukagelo.pdfIn PDF document text
    • http://hieuchuan.com/upload/files/76932551111.pdfIn PDF document text
    • http://nuk-amro.de/userfiles/file/19049518205.pdfIn PDF document text
    • http://themetamorphoseprogram.com/userfiles/file/fupixak.pdfIn PDF document text
    • http://rem-proekt.com/f/file/35521524882.pdfIn PDF document text
    • http://mh-gartengestaltung.de/userfiles/file/53690193982.pdfIn PDF document text
    • http://battle.bpv.su/content/files/files/gogoxakumosalibapubujodip.pdfIn PDF document text
    • http://hidropro.hu/upload/85792065029.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/afa3731a49b289dbb89b6c31c6d89432/54120956040.pdfIn PDF document text
    • http://otohondamientay.com/upload/files/82002906891.pdfIn PDF document text
    • http://jagodkaprzedszkole.pl/userfiles/file/2104143634.pdfIn PDF document text
    • https://pt-joker.com/contents/files/kamowugefu.pdfIn PDF document text
    • http://minhanh.com/files/68238350203.pdfIn PDF document text
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/161a2ca99ad741---62099631139.pdfIn PDF document text
    • http://mea-travel.pl/userfiles/file/87693587805.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161731ba9c09f4---fukuwisapazulewo.pdfIn PDF document text
    • http://pappteam.hu/userfiles/file/pawuxajejixuxajopipeb.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/BcFPVxLj4jw/uplcv?utm_term=young+living+style+guidePDF link annotation
    • 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_off0000c485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC485 17172 bytes
SHA-256: e214f2891f5cb44dd3ad69e42555f06794e7bee414419788da378a7e67ca13e9
font_01_sfnt_off0000f0ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FF 10424 bytes
SHA-256: 74eeca0963cf164d8ce5770511808f083980b3730b12131fa58291215edc572c
font_02_sfnt_off00010895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10895 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336