Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d35627e4301c663…

MALICIOUS

PDF

88.0 KB Created: 2021-10-08 21:10:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: f41b44ec89bff7051fa62fb2c272c62d SHA-1: 02765f80641427a1b9f713f77f64c034ed2889d6 SHA-256: 0d35627e4301c663ea19051df45be3743728fce252c99a7ade438c61c4ed6d60
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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 http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/jitukogosedov.pdf In PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614fdd3085c2c---85875150611.pdfIn PDF document text
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/9d85bce4ca20dce7f6344261fe259d4d/55468515350.pdfIn PDF document text
    • http://flyingfish-stay.godyouoh.com/userfiles/file/bulezikipaperuwurov.pdfIn PDF document text
    • https://we-plus.tw/ckfinder/userfiles/files/91502149712.pdfIn PDF document text
    • http://www.niziointerior.pl/upload/file/jolirodigunazaroxezum.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615cc1d5217f7---raxomunelerumasutunelazew.pdfIn PDF document text
    • http://museodegliarazzimarsala.com/userfiles/files/natirove.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161514614cd857---riwalokamivifipijepufu.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136789981d4e---56059087135.pdfIn PDF document text
    • http://pronobile.de/catalog/file/basuwuzexemavijevapo.pdfIn PDF document text
    • https://www.wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/wazizosofikoj.pdfIn PDF document text
    • http://www.americaninvest.net/upls/files/foseguxuxepadevaxuf.pdfIn PDF document text
    • http://atletika-pardubice.cz/files/file/nafodefekulometanubavu.pdfIn PDF document text
    • http://jornalespacoaberto.com/app/webroot/datafiles/editor/files/90876927835.pdfIn PDF document text
    • http://sonarkella.com/userfiles/file/56853482616.pdfIn PDF document text
    • http://mindatpeace.us/uploads/files/12511899607.pdfIn PDF document text
    • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/548313e0385cb4a9bf58f41e91c9c975/kemozelarosodajaxemozumos.pdfIn PDF document text
    • https://pmcp-avac.com/files/upload-ckfinder/files/pifelatur.pdfIn PDF document text
    • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/lueb6r1lgrspms5ig4kun2bop1/38425413348.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/t1vd8odprgenjt1qef8cqhhr14/semuzawegetejogemiponuzon.pdfIn PDF document text
    • https://samsunyapi.com/userfiles/files/sawuzegowedekigo.pdfIn PDF document text
    • https://kluchar.net/klucharnet/images/file/rorubaw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=money+tree+safe+for+catsPDF 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_off0000efd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD9 19484 bytes
SHA-256: b3a316e30489de0d8a4b6d10a29f7ca89b6b09ffdb6036ee034e76dc9e2a6751
font_01_sfnt_off000122c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122C1 10296 bytes
SHA-256: 297ae0461a794ed5506269cec5db4eba0a5cadc6990c913b8d9686878197c07b
font_02_sfnt_off00013a2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A2F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1