Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3c8e26ef6c393d…

MALICIOUS

PDF

89.4 KB Created: 2021-10-03 13:17:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: d5cae188146862e530766472b2d0fbb6 SHA-1: 70d2b617f740164ced6414dbe007c0356c848df4 SHA-256: 0d3c8e26ef6c393d8b2726edde0328c8759ba8bd0ed061eb6fad591ae1bcfca1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9905

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://wastran.ru/uplcv?utm_term=how+many+kg+in+135+lbs PDF link annotation
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/85a9a8d73dbd03aa91e47739aef77869/vuzusebus.pdfIn PDF document text
    • https://geneolock.com/ckfinder/userfiles/files/99381983730.pdfIn PDF document text
    • http://bhavalaya.org/ckfinder/userfiles/files/49303181626.pdfIn PDF document text
    • http://chulatutoracademy.com/chulatutor/ckfinder/userfiles/files/92451616184.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155bdb14576c---67547511484.pdfIn PDF document text
    • https://suzukihungyen.net/data/dulieu/files/14091408276.pdfIn PDF document text
    • http://assessmentinsight.com/ckfinder/userfiles/files/tepajifadowazapineja.pdfIn PDF document text
    • http://agarimo.com/archivos/archivos/40342224588.pdfIn PDF document text
    • http://anael.fr/fckeditor/userfiles/file/73622066410.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/m8bflqa6ecnkvkkmvj253f5u15/45164598709.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140652e06278---52016417049.pdfIn PDF document text
    • http://mclarenquartz.in/ci/userfiles/files/kirarogavegeranupabaro.pdfIn PDF document text
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/gerinanawan.pdfIn PDF document text
    • https://butyfarm.mm520.net/userfiles/files/pozisuxagodolojiwok.pdfIn PDF document text
    • http://alrabbanoilandgas.com/file/files/26901711869.pdfIn PDF document text
    • http://dsagco.com/Upload/file/50181666486.pdfIn PDF document text
    • http://chaukitchen.com/uploads/files/21985176873.pdfIn PDF document text
    • http://suliaox.com/v15/Upload/file/20219131016436404.pdfIn PDF document text
    • https://giridhareye.org/ckfinder/userfiles/files/27506390324.pdfIn PDF document text
    • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/jexovetaxadejenofi.pdfIn PDF document text
    • http://besttailor.info/ckfinder/userfiles/files/suluxaletibunijokexure.pdfIn PDF document text
    • http://tccsrl.org/userfiles/files/92722995437.pdfIn PDF document text
    • http://nobody-films.com/bpms/includes/fckeditor_uploads/userfiles/file/parazerule.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/gasemofexikatotakedu.pdfIn PDF document text
    • http://studiorinaldibedin.eu/userfiles/files/rarejudivesev.pdfIn PDF document text
    • http://gaongonmaiphuong.vn/webroot/img/files/76169551087.pdfIn PDF document text
    • http://bortran.com/upload/image/file/20210916111304.pdfIn PDF document text
    • https://tanhoaphat.vn/userfiles/file/wuvonuxodopidogazuwoluj.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_off0000f956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF956 10904 bytes
SHA-256: e319b75d78fba1f9c643706d9053614dbc4ac339d0e20453ffb16e49a2dd6d3b
font_01_sfnt_off000112a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AB6 17356 bytes
SHA-256: 417e9aa31a6cf8df0528b2e9d3ea72ec85effa6c374f7d74e6b8cd822b764f9d