Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d844d9ffab75383…

MALICIOUS

PDF

279.9 KB Created: 2022-03-22 22:43:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 92f0c5659f56d17154bd01d159570584 SHA-1: 999318008340985f314b26938b92935f2f7ec7b5 SHA-256: 5d844d9ffab7538352f042f7e552529d4c9f983a908aa4eb1b7379b03542df8d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6618

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://yubit.co.za/XSRYdR1H?utm_term=contortion+training+in+new+jersey PDF link annotation
    • http://tid.vn/upload/files/27047331888.pdfIn PDF document text
    • https://tkaniny-svitap.cz/kcfinder/upload/files/85285286416.pdfIn PDF document text
    • https://latvanysport.hu/upload/files/27713839460.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16227c630cfaec---68991598429.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/ff06972b3d848551b4a8ec369eddb6d2/31138249916.pdfIn PDF document text
    • http://restokrat.info/userfiles/file/xanokukuwefupejemitof.pdfIn PDF document text
    • http://www.lbtfilm.com/uploads/files/29737785777.pdfIn PDF document text
    • https://antiquites-opio.com/kcfinder/upload/files/57729553256.pdfIn PDF document text
    • http://swissies.lt/ckfinder/userfiles/files/48392092555.pdfIn PDF document text
    • https://gulecbakliyat.com/panel/kcfinder/files/zolabup.pdfIn PDF document text
    • http://www.clinicainthera.com.br/kcfinder/upload/files/73170954674.pdfIn PDF document text
    • https://grandiosieventinuziali.it/filesUploads/file/4535891152.pdfIn PDF document text
    • http://www.littletreepreschool.com/admin/kcfinder/upload/files/semazajikofigu.pdfIn PDF document text
    • http://ubestsports.com/imager/files/20220203140245.pdfIn PDF document text
    • https://12shio2.com/contents/files/xosusowafewuzesexiti.pdfIn PDF document text
    • https://www.acv-verdun.fr/kcfinder/upload/files/36876563553.pdfIn PDF document text
    • https://buzascsaba.hu/userFiles/file/13912277075.pdfIn PDF document text
    • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/1b9103c2074fa248927d48604edaf102/91921145413.pdfIn PDF document text
    • http://pcserviszlin.cz/ckfinder/userfiles/files/zufalamizifeloxedo.pdfIn PDF document text
    • http://eidatlantique.antevox.fr/UserFiles/file/58218217498.pdfIn PDF document text
    • http://paneldeconso.com/userfiles/file/43114894973.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16212cf2caa26d---13646425254.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/8c5f936260d021de3292e943cdd8c067/wasujuwemibax.pdfIn PDF document text
    • https://www.auto-ecole-acm.com/ckfinder/userfiles/files/tugifomanetirupuwil.pdfIn PDF document text
    • http://hajostanfolyam.hu/admin/kcfinder/upload/files/48281320973.pdfIn PDF document text
    • http://www.rbn.org.np/public/admin/plugin/kcfinder/upload/files/76421151863.pdfIn PDF document text
    • http://etecpresidentevenceslau.com.br/kcfinder/upload/files/tesofakopigisuwika.pdfIn PDF document text
    • https://simpangkanan.com/contents/files/20701740803.pdfIn PDF document text
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/nofuwuvawopewenemexekerik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E162 23824 bytes
SHA-256: 759bd60d19e58b2b4cafc74d2e0b30167cf33746ffd376b75c80d54cb33e5afb
font_01_sfnt_off00041e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41E81 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000435a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x435A1 10596 bytes
SHA-256: 59a0cb82efb25b82c1e111fdd240944badda71501f12d679c5019256967857e4