Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f736fcbe1cadf5…

MALICIOUS

PDF

222.8 KB Created: 2022-03-28 08:45:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 4c21f54a6f76dbd6bd7fa496586e9991 SHA-1: 631fb11be134bfe6a8605289e9c9d74d6f804fac SHA-256: 98f736fcbe1cadf5395a08d2932fed44024dfd2fdae46df6cba517abc5703d87
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7525

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://lazav.co.za/XSRYdR1H?utm_term=typeerror%3A+an+integer+is+required PDF link annotation
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff0440f0a43---39454563020.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16230ed59db113---19976234811.pdfIn PDF document text
    • http://35ct1.com/images/ckImageFiles/files/88050346023.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236d1f6c1973---tototixiragotanasefixo.pdfIn PDF document text
    • https://www.hmgfinance.com/ckfinder/userfiles/files/90421847550.pdfIn PDF document text
    • http://tse.net.in/assets/ckeditor/kcfinder/upload/files/muxawipidagosuzaxobax.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620838dbd3944---jipimapi.pdfIn PDF document text
    • http://optometrystaprzemysl.pl/userfiles/file/66058448151.pdfIn PDF document text
    • http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/dimovamomubepetu.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16207e77727981---19078469810.pdfIn PDF document text
    • http://js-space.de/userfiles/file/bemoxipipunifami.pdfIn PDF document text
    • https://genia-groupe.fr/images/files/30886253772.pdfIn PDF document text
    • https://stichtingech.org/ckfinder/userfiles/files/vumogozumezuzijedisefu.pdfIn PDF document text
    • http://artgrafika.cz/userfiles/file/43739961634.pdfIn PDF document text
    • https://aquamedicasatumare.ro/ckfinder/userfiles/files/65899788484.pdfIn PDF document text
    • http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/57004064324.pdfIn PDF document text
    • https://eventaipei.com/upload/files/87680825293.pdfIn PDF document text
    • https://antiquites-opio.com/kcfinder/upload/files/mogaxam.pdfIn PDF document text
    • https://skostishoes.com/userfiles/file/puladawebufotajonovigilur.pdfIn PDF document text
    • http://agecarekorea.com/ckupload/files/gepemunugu.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/35395312563.pdfIn PDF document text
    • https://olympicwroclaw.pl/zdjecia/fck/file/kupixaxexivojurigij.pdfIn PDF document text
    • http://hbinpol.cz/media/images/upload/file/56753974146.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_off0002f683.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002f683.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F683 17676 bytes
SHA-256: 32cb6b56eb79da11a20dbef3114948ae1c7e3202d0a180b925f20569ff2c1e36
font_01_sfnt_off000324f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324F2 10960 bytes
SHA-256: 7c53af37b618c566709b3e2e02377446e85248f3caed1e3918d6d73e26cc3f47
font_02_sfnt_off00033de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33DE1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off000354f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x354F7 6388 bytes
SHA-256: dd953ba72f986881284b1d727f64d43a5c86fda03d61b2333b66eea84a3f2fbe