Malicious PDF — malware analysis report

Static analysis result for SHA-256 875ab9488a882778…

MALICIOUS

PDF

311.5 KB Created: 2022-03-01 00:49:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 16878a135773e9ab93cadced9c4d39eb SHA-1: a9e73cff732c11015e9b792f929f22a00e6a1da1 SHA-256: 875ab9488a882778edfbd139e202600a14c52e2048c6366e91215688a88e7468
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7246

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://naturalwonders.com/uploads/files/wapugefoduruxaxod.pdf In PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621418c4368dc---gugidajepebofuvufuwit.pdfIn PDF document text
    • https://mepho.hu/ckfinder/userfiles/files/takazokuriridexosirase.pdfIn PDF document text
    • http://vectorma.ru/uploads/assets/file/56862517483.pdfIn PDF document text
    • http://stfurnimart.com/file_media/file_image/file/popedozapokuvovigikipi.pdfIn PDF document text
    • http://raudhatuljannah-gma.com/assets/kcfinder/upload/files/tulamolojezaxitigepebuzi.pdfIn PDF document text
    • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16204c9e969b25---tujoruwosixaxamojoxokap.pdfIn PDF document text
    • https://wyslijpaczki.pl/app/webroot/files/userfiles/file/zomotapaxevasum.pdfIn PDF document text
    • https://afmiletisim.afmiletisimajansi.info/resimler/files/99462396483.pdfIn PDF document text
    • http://choragwica.pl/userfiles/file/56204794865.pdfIn PDF document text
    • http://y-mirai.biz/js/kcfinder/upload/files/64735467986.pdfIn PDF document text
    • http://gewald.ru/content/Files/64758758353.pdfIn PDF document text
    • http://sanruou.com/app/webroot/uploads/files/85058789277.pdfIn PDF document text
    • https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/54996097934.pdfIn PDF document text
    • https://shinko-tw.com/UserFiles/file/wobusutanimejoko.pdfIn PDF document text
    • http://cistenivytahu.cz/upload/file/61228830704.pdfIn PDF document text
    • http://abogadosaguilar.com/ckfinder/userfiles/files/9264330332.pdfIn PDF document text
    • http://zhongkerb.com/userfiles/file/12917629799.pdfIn PDF document text
    • http://heathrowairporttaxi.website/userfiles/file/94667359696.pdfIn PDF document text
    • https://izr.fr/files/xukisorus.pdfIn PDF document text
    • http://straps.by/ckfinder/userfiles/files/82216541277.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/49770033068.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16218388a5e992---xalituwigusevob.pdfIn PDF document text
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/162022202b0d80---fivanifipupun.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20220208_BD591B4C78AE876A.pdfIn PDF document text
    • https://keuangan.artadev.com/assets/kcfinder/upload/files/gutalerasutidagasana.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/mebizem.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/955d900eed4b93307770ffbe12c21a54/74062849090.pdfIn PDF document text
    • http://wagnerpc.com/userfiles/files/tizafezepabatatojuvazog.pdfIn PDF document text
    • http://gk-eventus.ru/admin/ckfinder/userfiles/files/855393033.pdfIn PDF document text
    • https://hamzsabegi60szallo.hu/UserFiles/File/fuxuvowuxavufuzugovedu.pdfIn PDF document text
    • http://hotelhillwaypark.com/app/webroot/js/kcfinder/upload/files/toxobefujofu.pdfIn PDF document text
    • https://www.officinasapori.com/_admin/kcfinder/upload/files/18024931293.pdfIn PDF document text
    • http://burmeseburmilla-allevamento.com/userfiles/files/14904604973.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210b3cda8ef2---43146551681.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=solitaire+offline++freePDF link annotation
    • http://mobydick-band.de/fckdata/file/43593515742.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_off000465e9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000465e9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000465e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x465E9 22672 bytes
SHA-256: f6bbf79cbc6671e59dea5c5785f89b42ce39e6029120cae5b40388fa378a7709
font_01_sfnt_off0004a086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A086 10116 bytes
SHA-256: e9517eea034b739cefb43e8e378aae57cf36a4f539e69283a63b73234ce624e8
font_02_sfnt_off0004b734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B734 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9