Malicious PDF — malware analysis report

Static analysis result for SHA-256 425c7de3f7528afd…

MALICIOUS

PDF

90.5 KB Created: 2021-10-21 00:24:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: d8cde1584ef0a641aa4ade35e7838990 SHA-1: 7ec3a70d48a3a0aa725057775629cf12d63a30c8 SHA-256: 425c7de3f7528afd327b0d9b252ea29c5fcd0c4218a96c7bb963eb3d97d59d8f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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--m1age8bh.xn--p1ai/files/file/lorodeguxupofunawa.pdf In PDF document text
    • https://lsv-wittlage.de/ckfinder/userfiles/files/tanepenegonolojezuza.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/02ddd0d3fe31c4441266414614b962c5/fekefisoditanefigiwel.pdfIn PDF document text
    • https://matricula.hssanesteban.cl/files/rerasujubogukefadubimi.pdfIn PDF document text
    • http://engroupe.ca/aym_image/files/37555419177.pdfIn PDF document text
    • https://pamukoglu.com/userfiles/file/35169989650.pdfIn PDF document text
    • http://daiduongmetal.com/uploads/ckfinder/files/dirifoda.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146d2fdde189---witabagi.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614d7721bd84f---22620867878.pdfIn PDF document text
    • https://aqualibramontois.be/fckdownload/file/22741266520.pdfIn PDF document text
    • http://iburgisidimarsala.eu/userfiles/files/26376392054.pdfIn PDF document text
    • http://yakutiaprime.ru/SITE/files/editor/file/98586739121.pdfIn PDF document text
    • http://malbreil.com/userfiles/file/28840577013.pdfIn PDF document text
    • https://nstoplana.rs/ckfinder/userfiles/files/33773101482.pdfIn PDF document text
    • https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/79600469602.pdfIn PDF document text
    • http://ooexperience.be/assets/Image/files/fixeboxisusexoritute.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/95900826864.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/5012276431.pdfIn PDF document text
    • https://ra7a7p-h3ba7.com/contents/files/tazegotijawu.pdfIn PDF document text
    • https://penzionradvanice.cz/res/file/torewurokez.pdfIn PDF document text
    • http://kledingindex.nl/images/uploads/44174673126.pdfIn PDF document text
    • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/b3639d77861b01f60f86c150a8c14e50/7907339821.pdfIn PDF document text
    • https://vwb.mrv-educationservices.com/content_file/files/93334797496.pdfIn PDF document text
    • http://e-kva.ru/admin/ckfinder/userfiles/files/kajuzudedas.pdfIn PDF document text
    • https://ltes2.tw-goods.com/UserFiles/files/91464333188.pdfIn PDF document text
    • https://magnumattachments.com/ckfinder/userfiles/Files/bagoburorogidawelonu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/EqozwcbAC44/uplcv?utm_term=african+customary+law+in+south+africa+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_off0000f94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94C 18560 bytes
SHA-256: f420e44f651367918642285938835d192f04caef9c6d588312195a409c8ca84a
font_01_sfnt_off00012a2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A2F 11036 bytes
SHA-256: df651c13b32fb6276c8bb33a2983be7781b4c28041db19b6be3ffa47ee8da004
font_02_sfnt_off000143c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143C5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1