Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8548673b98b176…

MALICIOUS

PDF

498.8 KB Created: 2022-02-14 16:31:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 44895ae9a6ce23d206a704c0dad8d9bc SHA-1: 49da3eeda536d52aa3054574bf7b59c082b81cac SHA-256: 5d8548673b98b176007502f949d073333992a4baa55586cdb14b3d6df0afa528
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3141

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://norin.co.za/XSRYdR1H?utm_term=assignment+of+settlement+proceeds+form PDF link annotation
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319028dee0b---liponabuluzerop.pdfIn PDF document text
    • https://embassyinvietnam.com/webroot/img/files/46067488144.pdfIn PDF document text
    • http://houtackers.nl/userfiles/file/pivadovulog.pdfIn PDF document text
    • http://biurodluga.pl/files/files/wuruniwimebuwefolus.pdfIn PDF document text
    • https://esprimagroup.com/userfiles/file/nisusixedo.pdfIn PDF document text
    • http://belcanto-evenements.com/media/files/dibebapejugil.pdfIn PDF document text
    • http://gtlmarinefuel.com/userfiles/file/66956164938.pdfIn PDF document text
    • https://www.gpaci.org.br/cms/ckfinder/userfiles/files/34277257566.pdfIn PDF document text
    • https://planbmedia.hu/files/natemukuludud.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619e74ff43e1e---jisorokawe.pdfIn PDF document text
    • https://catbasailing.com/upload/fck/file/rimerikuzaberasovob.pdfIn PDF document text
    • https://gitimohammadilakhimpur.org/ckfinder/userfiles/files/76812973695.pdfIn PDF document text
    • http://akiisushi.com/uploads/files/82749852671.pdfIn PDF document text
    • http://amdind.com/userfiles/file/vibugew.pdfIn PDF document text
    • http://thechelseaff.com/user_uploads/files/52449837558.pdfIn PDF document text
    • http://yaan121.com/uploads/files/202108250010084185.pdfIn PDF document text
    • http://huron81reunion.com/clients/f/fe/feec28e48c841af8be4ad6373737a022/File/posurenigigonabudarovemav.pdfIn PDF document text
    • http://lecostationery.com/files/file/nazamujupusogokowi.pdfIn PDF document text
    • https://jucariicopilasi.ro/app/webroot/files/userfiles/files/32397200001.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/cff527edfa88325d322c5074882ec406/44698073336.pdfIn PDF document text
    • https://barcelonacentremedic.cat/files/galeria/files/66372905686.pdfIn PDF document text
    • http://ahrestygz.com/userfiles/files/20210814_040408.pdfIn PDF document text
    • http://cuboni.com/uploadfile/hong202108170432032210.pdfIn PDF document text
    • http://gurukripapublicschool.org/userfiles/file/botaputisipolokoromok.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/16865046e3ce42ab03387a87dfa42a8a/nuwaparivapiluxegafi.pdfIn PDF document text
    • https://marthomaktrplrdiocese.org/ckfinder/userfiles/files/xidowanonapetetuxomipazu.pdfIn PDF document text
    • http://rszm88.com/upfolder/e/files/20211015171258.pdfIn PDF document text
    • http://bezagsecurity.cz/userfiles/87495569560.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00073d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D4E 20484 bytes
SHA-256: a74970e2b221c0f71119ac529cd83e36f0cd16def47c263904d700ea8ba515db
font_01_sfnt_off00077312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77312 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_02_sfnt_off00078915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78915 10780 bytes
SHA-256: d78020fcfcee30541a82a434099e5afad50bcbe83b7763e3aeaffdc93561739b
font_03_sfnt_off0007a1aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1AA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9