Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5de1e889913a9e4…

MALICIOUS

PDF

291.2 KB Created: 2022-03-08 01:14:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: cd458654121796f6142914f90f23b227 SHA-1: b97adb93f333aa200146e74e3790c37339f3c9d7 SHA-256: b5de1e889913a9e487289e0337df0b05f7f995901a6c700505a90aeb8116b392
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6428

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://yoyep.co.za/XSRYdR1H?utm_term=funny+common+sense+questions+with+answers PDF link annotation
    • http://dishandspoonproductions.com/ckfinder/userfiles/files/59299281304.pdfIn PDF document text
    • http://aleksandriya.topmebli.com/content/xuploadimages/file/5377872092.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/91b4d20b6ff7f453ff8b4c8178dcc626/95794987866.pdfIn PDF document text
    • http://www.leinsterdancing.com/uploads/files/20278674922.pdfIn PDF document text
    • http://dekogard.net/deko/veri/_files/44134690616.pdfIn PDF document text
    • https://safetyhanoi.baohohoanglong.com/userfiles/file/piwapek.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621121eb6b863---lipikenemobufun.pdfIn PDF document text
    • http://heatexchangersolution.com/upload_fck/file/2022-2-5/20220205031822718963.pdfIn PDF document text
    • http://www.korsun.ic.ck.ua/js/kcfinder/upload/files/jijisowovixaketobazekusor.pdfIn PDF document text
    • http://ceral.pl/ceral/pliki/file/zituvigorexugipo.pdfIn PDF document text
    • http://notariocprietoa.com/notaria/documentos/files/55143873589.pdfIn PDF document text
    • https://ljlconst.com/admin/images/file/6738205986.pdfIn PDF document text
    • https://pensiuneavalentina.traditionalart.ro/app/webroot/file/14326806365.pdfIn PDF document text
    • https://pratham.one/file/fujasos.pdfIn PDF document text
    • http://watch62.ru/files/files/kexabam.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622690a24684e---44035804910.pdfIn PDF document text
    • https://karmak-makina.com/upload/files/fibazo.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622251350e696---zolajugosemifozex.pdfIn PDF document text
    • https://giaiphapthietke.vn/media/file/files/38548816370.pdfIn PDF document text
    • https://pastijptoto.com/contents/files/xoxosorupuwe.pdfIn PDF document text
    • http://premiumdrinks.eu/userfiles/sijuwuwobomegoradozi.pdfIn PDF document text
    • http://daiichihousing.net/uploads/news_file/85533460509.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/38178324917.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161fabc64df36f---vevupajakef.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_off0004049e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004049e.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004049e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4049E 19420 bytes
SHA-256: b272c3dc8ff0209056996792b72afe904db44451a01fc1e2e74227c5c3f215f9
font_01_sfnt_off000437a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x437A5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00044ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44EC5 10872 bytes
SHA-256: 2d0a158ab6ada4f5fcf4e248a0db3b6eb9f715e43715fe092cb4d4c405fbdb01
font_03_sfnt_off000467d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x467D1 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6