Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8868be9d8c06e0…

MALICIOUS

PDF

525.7 KB Created: 2022-03-10 00:59:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: bc1c39a6a456485d99283882f64d60ca SHA-1: 221bfe7a9e37fd2573080fe0ea5f842b8d7adb86 SHA-256: aa8868be9d8c06e0fab4b622dc983a46243dfa4cfda575b16fd0adcb87b197e5
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4376

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/XSRYdR1H?utm_term=analogy+pdf+for+railway PDF link annotation
    • https://acv-verdun.fr/kcfinder/upload/files/kitoruper.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1621fcbf8ae584---76524104023.pdfIn PDF document text
    • http://www.sman1batusopang.sch.id/asset/kcfinder/upload/files/nokelakuridamimikep.pdfIn PDF document text
    • http://roseeskin.com/userfiles/file/20220223025300.pdfIn PDF document text
    • http://grancanariacomercio.com/documentos/file/marorututemurudodufirak.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/ramofafabi.pdfIn PDF document text
    • https://dreptultau.hotnews.md/upload/userfiles/files/33873113261.pdfIn PDF document text
    • https://hkhhvac.com/nbloom/fckuploads/file/jisegolabusupalal.pdfIn PDF document text
    • http://chistogood.ru/admin/ckfinder/userfiles/files/36092140061.pdfIn PDF document text
    • http://candleelectricals.com/uploaded_files/userfiles/files/39999680565.pdfIn PDF document text
    • http://yuha.be/_files/file/65706810782.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/kufumotolo.pdfIn PDF document text
    • https://gatia.kone-equicentrum.cz/userfiles/files/70649298243.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/162058e5d6260e---1674700317.pdfIn PDF document text
    • http://yacpa.org/yacpafiles/file/mimupakavotokowekokisomu.pdfIn PDF document text
    • http://www.mab-solutions.fr/upload/file/majoweti.pdfIn PDF document text
    • http://pinboulevard.com/file_space/files/bolutiro.pdfIn PDF document text
    • https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/magajebubogi.pdfIn PDF document text
    • https://qpshouse.com/upload/image/file/baramadireruxufewitux.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/355bc88934eec3f7ad23fdcabcfc8af3/41810667122.pdfIn PDF document text
    • https://mvfht.ca/kcfinder/upload/files/27207046923.pdfIn PDF document text
    • http://nawaress.com/webroot/js/ckfinder/userfiles/files/kagepanokepodebo.pdfIn PDF document text
    • http://dom-2000.ru/ckfinder/userfiles/files/82721282571.pdfIn PDF document text
    • http://www.focitabor.hu/userfiles/file/ronatazi.pdfIn PDF document text
    • http://lor-rostov.su/userfiles/files/91851851122.pdfIn PDF document text
    • http://rztria.ru/kcfinder/upload/files/67634742037.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_off0007c3f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3F5 10456 bytes
SHA-256: 49c5db55f3dffbda1abf7bff6b00c85091dbc7f21e7c8b43647dd3468e01b1da
font_01_sfnt_off0007dba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0007f2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2BE 19884 bytes
SHA-256: 4c6fe9788d229305aa90fae8ee70bcf640a97bf8251b5f1ce742ad9012b2763a