Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b29f07fdb5998a…

MALICIOUS

PDF

427.1 KB Created: 2022-01-02 12:35:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: a7d0b69fef9692b3a3db71628790aa2c SHA-1: 3192c89c3c6fad1f6b78e51c5b09d776c493b224 SHA-256: 72b29f07fdb5998a30a012f48ae202d6f97e8aaf5b7968bec362bd8acfbc1ce7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5836

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 http://giasuthanhdat.vn/Images_upload/files/93228636143.pdf In PDF document text
    • https://majubesar.net/contents/files/23717246267.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/dibiwupedef.pdfIn PDF document text
    • https://sakesushimn.com/userfiles/files/petavivuzoredudosuwokun.pdfIn PDF document text
    • http://emannsltd.com/userfiles/belutetijapaduwalujugapik.pdfIn PDF document text
    • http://dpholding.ru/uploads/files/1820825118.pdfIn PDF document text
    • http://daechienglishpark.com/ckfinder/userfiles/files/57790038010.pdfIn PDF document text
    • http://jiji.pgo.tw/pic/uploads/files/xelofolegevew.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/d61862affaa5ab688f624fe0d480aefd/toxudexotuj.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/49de687312810452e175c30a1f0e8dde/vakefat.pdfIn PDF document text
    • http://www.insight-assessment.com/ckfinder/userfiles/files/77052513352.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/5ch2o1andkcn4ui8q808v7m026/7339517243.pdfIn PDF document text
    • http://oresteruggiero.com/userfiles/files/mepuwafi.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/f305afda5b567aaeffec307368641eab/gozuvatawe.pdfIn PDF document text
    • https://eastmangroup.org/ckfinder/userfiles/files/xujagitiboxorini.pdfIn PDF document text
    • http://mamolenasnc.it/userfiles/files/vijogukatumepuzibagora.pdfIn PDF document text
    • https://vinaskitchen.com/nbloom/fckuploads/file/xetave.pdfIn PDF document text
    • http://www.udelimpa.es/ckfinder/userfiles/files/tapagedexatopujabid.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/161511a271279c---21285903621.pdfIn PDF document text
    • https://deltagroup.bg/uploads/file/tatanasijomujazube.pdfIn PDF document text
    • https://calendarsunrooms.com/userfiles/files/tanasawaxotitulaneje.pdfIn PDF document text
    • https://bodymason.com/user_uploads/files/jizevon.pdfIn PDF document text
    • http://ducthoaudio.com/upload/files/17490278427.pdfIn PDF document text
    • http://1qjd.com/upload/files/2021-10-03-15-55-11-IUJGRGTD.pdfIn PDF document text
    • https://anotera.kopro.fr/userfiles/file/95165625571.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BcFPVxLj4jw/uplcv?utm_term=juvenile+rheumatoid+arthritis+guidelinesPDF 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_off00063e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E6F 10852 bytes
SHA-256: 2c313d24b86e0661a5d1d43d6cfa217dd40253de5fc2c942d14cc5134bad1227
font_01_sfnt_off0006571e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6571E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00066dbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DBD 18384 bytes
SHA-256: 71676ec9b7383989ba6b4860e6e6015db2a8a86327cc65575407f8cfc5eabc86