Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6563cae6cfa412…

MALICIOUS

PDF

84.4 KB Created: 2021-10-09 12:25:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: ac7c44609dfd4621b8fa1c700a816298 SHA-1: ad97a76551b524b8874bb87e6daa257f7a05f3e0 SHA-256: 2b6563cae6cfa4126e2cf9de08f6353bb745eb840bcc6b7a2533b553cd91678a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://sausalito.com/wysiwygfiles/file/79591958277.pdf In PDF document text
    • http://zulaikhatextile.com/userfiles/files/57084919465.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/985744f85bed9cccb7bfdc7acfa90bfc/nujipawala.pdfIn PDF document text
    • http://streetnn.ru/data/upload/ck/files/derowo.pdfIn PDF document text
    • http://style4.allwebeasy.com/userfiles/files/vidowuje.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615fb123775f5---lukimezew.pdfIn PDF document text
    • https://tanvietnamdinh.com/uploads/files/kodirem.pdfIn PDF document text
    • https://taybaite.com/userfiles/file/9282884411.pdfIn PDF document text
    • https://ddc-touggourt.dz/ar/files/punenam.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/16151402e83617---90281106073.pdfIn PDF document text
    • http://metabolitplus.ru/files/file/25822446529.pdfIn PDF document text
    • https://beruanglucu.com/contents/files/wibijabuwizukaxurekevi.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c126649bc---76494539953.pdfIn PDF document text
    • https://cmottaviproductive.it/uploads/file/wefevefenagasogisivelodu.pdfIn PDF document text
    • http://ityab.com/cache/fck_files/file/tatesowixivupizevuxog.pdfIn PDF document text
    • https://doina.md/fckeditorfiles/file/30640976008.pdfIn PDF document text
    • https://ferest.ro/imagini_ws/xoxununamivadud.pdfIn PDF document text
    • https://meritumptt.pl/dokumenty/file/75516780265.pdfIn PDF document text
    • http://dpsnowodworze.pl/userfiles/file/41155506768.pdfIn PDF document text
    • http://domgr11.ru/uploads/files/83558026102.pdfIn PDF document text
    • http://thrifthelp.com/flash/thrifthelp.com/file/reketoxezoropaminofipifi.pdfIn PDF document text
    • https://tanthueviet.vn/img_data/files/6791663756.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/ti5qonu7bd42cehh9dm4hbeibl/63179679440.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=rate+of+chemical+reaction+pdfPDF link annotation
    • 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_off0000e1b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B5 10760 bytes
SHA-256: 586ab302def418d46fa53b6227f37a05cec3546693a0a7f90b93f323c3470076
font_01_sfnt_off0000fa3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001124c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124C 19532 bytes
SHA-256: 1917dd0a53f8403e42be1d5377e815ac00430fac35f0d681e678e0a3983a35a2