Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f63fab6ffac5b20…

MALICIOUS

PDF

344.8 KB Created: 2022-04-09 17:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 5d0799c16852fcba2a2437a7fcd817c9 SHA-1: 09028a8371027cf4d222cc6e53a49744631ac123 SHA-256: 8f63fab6ffac5b207e05fadd565cc0a163730667596abbccd3989c6acc7892fa
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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://colod.co.za/XSRYdR1H?utm_term=gta+5+fatal+unknown+game+version PDF link annotation
    • http://apsara.ru/userfiles/file/52678283618.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/files/54591718190.pdfIn PDF document text
    • https://promenade-perpignan.com/userfiles/file/sifujijabomogovisavawa.pdfIn PDF document text
    • https://www.hkfew.org.hk/ckfinder/userfiles/files/88133959686.pdfIn PDF document text
    • http://valleytechltd.com/assets/ckeditor/kcfinder/upload/files/5219155005.pdfIn PDF document text
    • https://tl-systems.hu/files/files/gedubupaf.pdfIn PDF document text
    • https://www.anefescuela.es/files/zevixowoxu.pdfIn PDF document text
    • http://pflp-sy.org/assets/js/admin/ckeditor/kcfinder/upload/files/niluveledasezudumuwad.pdfIn PDF document text
    • http://aggengr.com/uploads/CMS/file/potaxosikidaxabewigibek.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16228d30c8ebd1---kezebeza.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16223beb3b8a2b---87963303210.pdfIn PDF document text
    • https://balatonfurediallatorvos.hu/userfiles/file/ripadubazepe.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236c4b2345d8---74390859457.pdfIn PDF document text
    • http://automyjka.pl/automyjka.pl/userfiles/file/bewolomunig.pdfIn PDF document text
    • http://microsolder.hu/userfiles/files/68538750928.pdfIn PDF document text
    • http://studiovalentini.eu/userfiles/files/51924969504.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1620aef3b3b660---tamavimap.pdfIn PDF document text
    • http://re-ezumi.com/admin/kcfinder/upload/files/68968111254.pdfIn PDF document text
    • https://ripedzn.com/app/webroot/files/fckeditor/file/92067761464.pdfIn PDF document text
    • https://g-tet.com/uploadedfiles/file/34508322291.pdfIn PDF document text
    • http://dycelife.com/userfiles/file/regixag.pdfIn PDF document text
    • https://toptenstudy.com/upload/files/BodyFile__6206A22FE4A80.pdfIn PDF document text
    • http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/55038868325.pdfIn PDF document text
    • http://fabrikando.com/cmsimple/images/file/2275208786.pdfIn PDF document text
    • https://chauphongasia.com/wp-content/plugins/super-forms/uploads/php/files/ahkmv27jhrbdj1mtpqmo8mjb4j/matenor.pdfIn PDF document text
    • http://orsini-blasioli.it/userfiles/files/sidasudojafolilafuzawupu.pdfIn PDF document text
    • http://conelser.hu/fck_uploads/file/tewodedodini.pdfIn PDF document text
    • http://baby-daycare.com/uploads/files/202203130845309617.pdfIn PDF document text
    • http://siripanyalamphun.com/user_img/files/nopiwolidon.pdfIn PDF document text
    • http://part-service55.ru/kcfinder/upload/files/fogageginurogizexo.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/50331958531.pdfIn PDF document text
    • http://zhjpharm.com/upload/files/18541285413.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202202100502315867.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_off0004f0e2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f0e2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f0e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0E2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000508f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x508F4 18592 bytes
SHA-256: b1cfa2d2cd132c1ff0aa33d43866650249ee91f4de2d4bb415873d8ab099e555
font_02_sfnt_off00053816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53816 11076 bytes
SHA-256: eb9ddbec2bdd0954696fb015cadc7dc2b64321ede5ca0de8a63839af5b61a88b