Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6e51d4c2120f17…

MALICIOUS

PDF

104.0 KB Created: 2021-08-02 05:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 1063e8e7ebec42d2ce6612d6ec4f0df3 SHA-1: aa778e923f312dd7dfe8c211226d51cfc73cf048 SHA-256: 2b6e51d4c2120f1731728818ca98c2cfb4d2e2253abe3b349001edf59fb455c2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://infrive.ru/uplcv?utm_term=earl+nightingale+the+strangest+secret+transcript PDF link annotation
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/f7cbd2e8247ff1d1ad077ff64361e416/zadewibosafotozaruvejoxif.pdfIn PDF document text
    • https://tucarrorentacar.co/ckfinder/userfiles/files/suxuliziladumuluseripo.pdfIn PDF document text
    • https://penal-garazh.ru/files/rugepinifemixoxi.pdfIn PDF document text
    • https://alarouba.com/ckfinder/userfiles/files/3321413526.pdfIn PDF document text
    • http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609726e995fa2---rasemezarojinosul.pdfIn PDF document text
    • http://rollfactorytogo.com/uploads/files/pebawoloterejotiret.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/zosub.pdfIn PDF document text
    • https://aplusadvance.com/naver_editor/data/file/56182557760.pdfIn PDF document text
    • http://dajuicebarus.com/uploads/files/70240423785.pdfIn PDF document text
    • https://laserbeautymachine.net/d/files/48923024727.pdfIn PDF document text
    • https://frontlinetherapist.com/wp-content/plugins/super-forms/uploads/php/files/46e92cc4586792ce5dd40d1b2702d30d/38062754142.pdfIn PDF document text
    • http://klasykarozrywki.pl/public/images/fck/file/gaxuluwizikide.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/t9sgpvkuukan26m9kmbodj2lf2/tovajatogedufesisefa.pdfIn PDF document text
    • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/3db085e89eeec1dd2b097b89f0791639/23971304257.pdfIn PDF document text
    • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/cqtn08ref849hfrosl3s0b4mhi/tusetesonamakudi.pdfIn PDF document text
    • http://wenxuezj.com/images/File/12621258244.pdfIn PDF document text
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/2454b2b8562639c9a43a5f2035708bb0/93368626444.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160beb17d8b0ba---batumagelop.pdfIn PDF document text
    • http://meadescafe.com/userfiles/file/maworanone.pdfIn PDF document text
    • http://hyundaiokla.com/uploads/files/65401828703.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160de54f95b6a7---68058903575.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_off000136ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136EE 10516 bytes
SHA-256: ceb897b250cd3d4b4701fd1dd15150d8685940fa7619c94b73908400440f0b91
font_01_sfnt_off00014ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EC5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000166d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166D7 16652 bytes
SHA-256: 7f8a9e67201608246391578c3847783e04180d52d8967f328e11537da8c723b9