Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f860a480b03696…

MALICIOUS

PDF

227.6 KB Created: 2022-03-20 10:24:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-02
MD5: bccb1f9cd133655cf797711868cfafdb SHA-1: 81c26060885bc44122c529bb528a7e77d1b6bcdd SHA-256: a4f860a480b03696520a94ae3e27d96d080421390d47ac476c46c1dd10a33ba1
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7171

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://podar.co.za/XSRYdR1H?utm_term=nc+iii+bookkeeping+reviewer+pdf PDF link annotation
    • http://zgkimsteszew.pl/img/upload/files/birurewejukerajubolixem.pdfIn PDF document text
    • https://www.leasing.net.in/ckfinder/userfiles/files/93164384986.pdfIn PDF document text
    • https://gatia.kone-equicentrum.cz/userfiles/files/90925334976.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/kotaxarazegoxarula.pdfIn PDF document text
    • https://saintarseny.ca/sites/saintarseny.ca/files/file/kalexeginafi.pdfIn PDF document text
    • http://kifei.ru/files/files/7092002923.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16215516c7a950---zoxusedatexavuz.pdfIn PDF document text
    • https://webhosting4.net/media/file/sogalise.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/70319109823.pdfIn PDF document text
    • https://funbugs.ie/userfiles/file/sevutaxesip.pdfIn PDF document text
    • http://cahayamimpi1.com/contents/files/54536109681.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/162344f3c21936---miresemizal.pdfIn PDF document text
    • http://xn--hy1bt45apoap01a.net/jangheung/userfiles/file/48873299995.pdfIn PDF document text
    • http://terryloops.com/E/file/mudofeko.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16233ac8ed0cbb---mebajoja.pdfIn PDF document text
    • http://csc-0411.com/userfiles/file/20220207155217_a37ift.pdfIn PDF document text
    • http://tincorner.vn/uploads/files/804847744.pdfIn PDF document text
    • https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/69700629612.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/vijewawenojowenageko.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/ddaab6e62c0e4ab9f96847b6f37a343e/12712530420.pdfIn PDF document text
    • https://thietbiotoviet.com/Images_upload/files/46135963886.pdfIn PDF document text
    • http://architettotamborra.eu/userfiles/files/12024151813.pdfIn PDF document text
    • http://italiangreyhound.pl/img1/userfiles/file/rezasisajitap.pdfIn PDF document text
    • https://administrador.bannik.com/benkio/files/tukidozarexuf.pdfIn PDF document text
    • https://www.v-investor.ru/kcfinder/upload/files/75085800543.pdfIn PDF document text
    • http://fujieshubao.com/zk/UploadFile/file/2022031420380873499.pdfIn PDF document text
    • http://mwbright.com/upload_fck/file/2022-2-5/20220205124840372820.pdfIn PDF document text
    • http://airserbia2009.vs.rs/multimedia/file/75287627931.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/15911001515.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622d1489c13dd---5640487629.pdfIn PDF document text
    • http://chunmianxian.com/upfolder/e/files/20220214025325.pdfIn PDF document text
    • http://sapientgenerator.ru/files/userfiles/files/giruzuz.pdfIn PDF document text
    • http://atrsara.ir/resource/files/63150596932.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_off00031f01.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031f01.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F01 10680 bytes
SHA-256: 26b685b02af40a1c64eb5d4b9d0876e8010e21c02db54dd7c39094f6be4c654a
font_01_sfnt_off0003372d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3372D 18484 bytes
SHA-256: 082f87007fe3353154aa3422478333c663936453030609537d6fe2220fb0b90f
font_02_sfnt_off00036784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36784 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9