Malicious PDF — malware analysis report

Static analysis result for SHA-256 87561abb10db7225…

MALICIOUS

PDF

247.4 KB Created: 2022-03-06 09:01:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 9c0e112785fb2e0e33b8a835baac7542 SHA-1: 485a7709f658673259ad5ec94d6cb3119894e3b8 SHA-256: 87561abb10db72253e54a54a2e9ca03bcb8c47b29265335b7530d2a456a8c9d0
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6767

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://lovig.co.za/XSRYdR1H?utm_term=chrome+remote+desktop+software PDF link annotation
    • https://fasleh.net/Files/files/vudiwoguxijesinudu.pdfIn PDF document text
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1620ffa547291f---fevarajowobemolekip.pdfIn PDF document text
    • https://actieaanbieding.com/upload/content/files/guwiximezusenesodawuva.pdfIn PDF document text
    • https://westpakusa.com/phpsites/vertical_living/uploads/file/42699307674.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/162146ffb2bfe9---62614732503.pdfIn PDF document text
    • http://kamerton.nl/clientfiles/vukexi.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/4ba437f772ada542966cf8ccc5417416/genisawijaxotaje.pdfIn PDF document text
    • https://arad.hu/files/files/kotilevati.pdfIn PDF document text
    • https://nesbedcollege.com/singhania/downloads/file/40338499842.pdfIn PDF document text
    • https://www.vyrobadps.eu/admin/kcfinder/upload/files/37978951644.pdfIn PDF document text
    • http://mediasingrid.com/js/new/fckeditor/userfiles/file/vosejobapumazasixopofetan.pdfIn PDF document text
    • https://www.stc-tn.com/webroot/upload/files/kimuwejuxujowetigija.pdfIn PDF document text
    • http://kompaspt2.com/contents/files/69065013022.pdfIn PDF document text
    • https://szemere-iskola.hu/images/files/sikajabokitezok.pdfIn PDF document text
    • http://viethanit.vn/hinhanh/file/74314758020.pdfIn PDF document text
    • http://j1ent.com/userfiles/file/20220224234549.pdfIn PDF document text
    • http://ecofincas.net/ckfinder/userfiles/files/jukerozagijiruragonezixif.pdfIn PDF document text
    • http://hmarksltd.com/assets/ckeditor/kcfinder/upload/files/61678549029.pdfIn PDF document text
    • http://eepr.cz/upload/files/64743557220.pdfIn PDF document text
    • http://egresiangus.com/admin/kcfinder/upload/files/xojaxudexolegukifovabe.pdfIn PDF document text
    • http://rklatex.com/userfiles/file/14198088607.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202226_221531_355.pdfIn PDF document text
    • https://stoneappeal.in/FCKeditor/file/pagetik.pdfIn PDF document text
    • https://residencialconilcosta.es/kcfinder/upload/images/files/55224735039.pdfIn PDF document text
    • https://www.swiftcargo.com/adminlogin/kcfinder/upload/files/3288238392.pdfIn PDF document text
    • http://recrute.fr/files/files/jupaserovinemiw.pdfIn PDF document text
    • http://sowiik.pl/userfiles/file/lobaxunan.pdfIn PDF document text
    • https://atahca.pt/atahca_gestor/kcfinder/upload/files/tizusik.pdfIn PDF document text
    • https://xn--fct5g39pjpo.tw/upload/leakstop/files/70605662154.pdfIn PDF document text
    • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d04c762be0---xolowevajinodivolore.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16203e461dc6fc---jesurovugawudafewuxi.pdfIn PDF document text
    • https://deloge-nt.fr/media/photo/file/dekegukaxiwujeneg.pdfIn PDF document text
    • http://gazomotor.com/allinone/file/musuzemu.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/162022fd43368a---44835098991.pdfIn PDF document text
    • http://ckudzcssffhhj.handysociality.com/upload/files/12605864871.pdfIn PDF document text
    • https://botroul.be/uploads/sokeborud.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_off00036ac9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00036ac9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36AC9 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000381e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x381E4 19812 bytes
SHA-256: 6b58bf14c2aca0bffd937534e5a02c61a4b0667ba448fe478f188ccb695cbb8e
font_02_sfnt_off0003b4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B4E9 10732 bytes
SHA-256: 9eda25b3818078f4de4aa43467d57297de26a9eb772c86d4cfd447059d951edc