Malicious PDF — malware analysis report

Static analysis result for SHA-256 191b3519f0e88274…

MALICIOUS

PDF

384.1 KB Created: 2022-02-12 20:17:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 6271ad482fae1a925bd534f33b244de7 SHA-1: f2efddd2f243286278d7b11e97937ed5487a40ec SHA-256: 191b3519f0e88274c168104ae8ad43e9d657bd81ce8c703ff226a90b3262d2b4
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6606

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://podar.co.za/XSRYdR1H?utm_term=tera+brawler+dps+guide PDF link annotation
    • http://autofactory-jin.com/js/upload/files/divom.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/70314094580.pdfIn PDF document text
    • http://sadbaindia.org/admin/kcfinder/upload/files/bukumasazu.pdfIn PDF document text
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/aca75067020c9e59734590c3f7c9bd1c/fikonerezesimikujawok.pdfIn PDF document text
    • https://beruanglucu.com/contents/files/wibijabuwizukaxurekevi.pdfIn PDF document text
    • https://piphoto.tw/uploads/files/202111260717053710.pdfIn PDF document text
    • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/78262869492.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/balarutujerises.pdfIn PDF document text
    • http://lica-mpt.it/userfiles/files/29680421054.pdfIn PDF document text
    • https://rjpexport.com/files/49954088437.pdfIn PDF document text
    • http://supporttmes.com/clients/2/26/2647aeee05d38019bb2ff7af4ee9f9d5/File/96829755871.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/k3877jhgp2fg3vo7oijntbh466/mepabagerokuxi.pdfIn PDF document text
    • http://parilka.by/var/upload/file/23996787314.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b7835c5a172---56199857944.pdfIn PDF document text
    • http://www.fichetalmeria.com/admin/kcfinder/upload/files/86114594532.pdfIn PDF document text
    • http://hiace-yoshikawa.com/js/upload/files/nutovezutibidedibujowexa.pdfIn PDF document text
    • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/10233544686.pdfIn PDF document text
    • http://allgeology.ru/ckfinder/userfiles/files/nitumekogusolagaxe.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/wupokitimasivadodurig.pdfIn PDF document text
    • http://moristas.com/userfiles/files/ribazazatupakurosajutax.pdfIn PDF document text
    • http://petra-koparki.pl/Upload/file/wifanu.pdfIn PDF document text
    • http://sahrugs.com/userfiles/file/rixupirin.pdfIn PDF document text
    • http://xboxheerlen.nl/userfiles/file/37204304016.pdfIn PDF document text
    • http://skia22.ru/pic/file/molubewogoled.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161ef178f057d5---98988820964.pdfIn PDF document text
    • http://dungcubepgiangtrinh.com/webroot/img/files/52288973803.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_off00059375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59375 18284 bytes
SHA-256: 666db2db9c5109bf25e0063a2f752563727db02396ac3c9529876345cf8e2eb8
font_01_sfnt_off0005c36d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C36D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005da8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA8D 10532 bytes
SHA-256: bc67a15dead5bdf8ad17fb8fabe26e7bfd7abb8e56a783c46e99be222684b070