Malicious PDF — malware analysis report

Static analysis result for SHA-256 19136edd7fdb833f…

MALICIOUS

PDF

81.1 KB Created: 2021-08-17 10:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 5ef1f290837fd9e626c8ec89a002930a SHA-1: 70c22befb26f07c715d8fd93dc9af944cd4a28a7 SHA-256: 19136edd7fdb833fff231b954e279bdbbdc640e9dc4208560a6fcf1a933d4d36
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/5231e910f92123bb2a16dfa2c4f7d903/21307120050.pdf In PDF document text
    • https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/nanakoguritorabi.pdfIn PDF document text
    • https://www.wappa.com.au/siteadmin/ckfinder/userfiles/files/nokije.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/jifaxetowaf.pdfIn PDF document text
    • http://scandirent-new.ru/uploads/assets/file/xofokom.pdfIn PDF document text
    • http://ajivikafinance.com/userfiles/file/kefixabekobu.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160775de744691---lotunafaxu.pdfIn PDF document text
    • https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/688535c81d8371ecd8ebe5c7fb300e78/pabirejegawagitis.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/00aba79159615f37f2a684bbbbae771a/29402212748.pdfIn PDF document text
    • https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/p1ef288kio2iulphl9s4a30bq4/58362446039.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/be803cbb17f5581ab1cc6f42937fa9c6/xaposopetawuli.pdfIn PDF document text
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/3536d032d4f4fd9f8c77c6bd7a3bc8f0/futuxixiwefakig.pdfIn PDF document text
    • https://study4student.com/cache/fck_files/file/namotexitilibobiwa.pdfIn PDF document text
    • https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eedef4cdb5---vurobi.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/bozimefosi.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/mfmssp7fqs8vorrd05gml58r4n/40853895937.pdfIn PDF document text
    • https://newshieldinsurance.com/demo/gsa/final/images/file/xugupixakarozeg.pdfIn PDF document text
    • http://geoplan.su/userfiles/file/delofajo.pdfIn PDF document text
    • http://coyada.com/up_images/up_images/povewatiri.pdfIn PDF document text
    • http://essuances.com/ckfinder/userfiles/files/45389444123.pdfIn PDF document text
    • https://bibonatura.hu/ckfinder/userfiles/files/lejodoposinupiruluverusu.pdfIn PDF document text
    • http://haai.org/upload/file/67016673668.pdfIn PDF document text
    • https://dewalt-naradi.cz/media/upload/editor/file/tipexuvobogaf.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4re35bbuqpcih130kdjes84845/39212927720.pdfIn PDF document text
    • https://ehbo-oostkapelle.nl/userfiles/file/gefapodenetivixunu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=how+to+apply+roadies+auditionPDF 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_off0000da01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA01 16868 bytes
SHA-256: a96a51532c456367ef6af5a798091763cb1bfde7921250c794713da67de0bc5c
font_01_sfnt_off000105e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105E9 10676 bytes
SHA-256: 5f66d3105994268f0590577ba052a961f2a091897af9a842cc0cb7372150daef
font_02_sfnt_off00011e90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E90 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1