Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f37e11a57e45dd0…

MALICIOUS

PDF

381.7 KB Created: 2022-02-04 16:19:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: d41b06464b096511f57f2ad463b939e6 SHA-1: b09c5ae33b6717e21b5b84be75069288e3253995 SHA-256: 5f37e11a57e45dd0ee4cfcb7e66b552a78e9e17300cf1944cf18762c5c3d1be2
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5061

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 http://ntvietnga.com/upload/files/72101012251.pdf In PDF document text
    • https://12shio4.com/contents/files/58890375256.pdfIn PDF document text
    • http://chothuexehochiminh.com/userfiles/file/21914662337.pdfIn PDF document text
    • http://monroehighwildcats.com/clients/40160/File/pupexuxovutinalavuzag.pdfIn PDF document text
    • http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///48017493608.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161a0f417464cb---gufajamo.pdfIn PDF document text
    • http://simsvizag.com/admin/uploadedfiles/file///fifivogoxinewuwajopupexo.pdfIn PDF document text
    • http://margheritango.it/userfiles/file/werasusekosizu.pdfIn PDF document text
    • http://proleague.dk/userfiles/file/74301766502.pdfIn PDF document text
    • http://arsvet.ru/img/upload/31644255927.pdfIn PDF document text
    • http://hydrogears.com/survey/userfiles/files/84622383275.pdfIn PDF document text
    • http://chestheart.org/journal/assets/ckeditor/kcfinder/upload/files/futamibadakisirusezimige.pdfIn PDF document text
    • https://entabe.com/upload/20220127/files/8555447193.pdfIn PDF document text
    • http://a-mega.ua/images/uploads/file/78732002951.pdfIn PDF document text
    • http://tzoetemondje.be/uploads/files/66515756890.pdfIn PDF document text
    • http://secureyun.cn/uploadfile/file///2022011612510466.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/490bd58d23cfb6d2a1c12ac258b1c00e/80928887665.pdfIn PDF document text
    • http://raczcsalad.hu/files/74362664432.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/tifofin.pdfIn PDF document text
    • http://gimnazjum-krasiczyn.pl/img/userfiles/file/fewokuzukosisumok.pdfIn PDF document text
    • https://bestcaps99.com/ckfinder/userfiles/files/25356601310.pdfIn PDF document text
    • https://eniedu.com/data/file/20210807005613.pdfIn PDF document text
    • http://hanhthien.net/uploads/file/91937429056.pdfIn PDF document text
    • https://tdsns.ru/userfiles/file/betag.pdfIn PDF document text
    • http://corpinal.com/kcfinder/upload/files/ropobupone.pdfIn PDF document text
    • http://seoulmenu.com/uploads/files/19417843826.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/15c7vnoc4ve49g4o4inksajj32/62352076631.pdfIn PDF document text
    • https://viboot.traigiongthuha.com/ckfinder/userfiles/files/newoxetonogokuzudedapo.pdfIn PDF document text
    • http://www.cemeba.com/uploads/ckfinder/files/93718572490.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/20852843591.pdfIn PDF document text
    • https://fallsplat.se/bildbank/file/dibetagobovomoselak.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611479e8671de---94307353594.pdfIn PDF document text
    • http://ck-buhgalter.ru/userfiles/file/ninopudesapigugimixo.pdfIn PDF document text
    • http://china-shengbang.com/upload_fck/file/2022-1-28/20220128020353387820.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617193f7f36ae---fuwiwotepes.pdfIn PDF document text
    • https://charlesstreetvideo.com/userfiles/file/baxoxi.pdfIn PDF document text
    • https://klubkanine.com/home/klub/public_html/ckfinder/userfiles/files/99880248937.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=cambridge+dictionary+offline+for+pcPDF link annotation
    • http://msslink.ru/userfiles/files/tilekeramoxekomiw.pdfIn PDF document text
    • https://www.rt9.rspo.org/ckfinder/userfiles/files/xawufujetekafozipili.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_off00057225.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00057225.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57225 11080 bytes
SHA-256: 6da1a3919fedc3414eb491490739cc29642808fea823a1da65cd3e4aa2173478
font_01_sfnt_off00058b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B86 17300 bytes
SHA-256: b77d177198a81c39f5fffb119870a7acf05083081403b4141604689e2987f4ae
font_02_sfnt_off0005b909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B909 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0005d028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D028 16144 bytes
SHA-256: fcca37035df06e555c2991ff65faa0e8497ca6423bee408ebc46b3aef925b516